Chip Monolithic Ceramic Capacitor for General
GRM0225C1C220JD05_ (01005, C0G, 22pF, DC16V)
_: packaging code
Reference Sheet
1.Scope
This product specification is applied to Chip Monolithic Ceramic Capacitor used for General Electronic equipment.
2.MURATA Part NO. System
(Ex.)
GRM
02
2
(2)T
Dimensions
(1)L/W
Dimensions
5C
1C
(3)Temperature
Characteristics
220
J
(5)Nominal (6)Capacitance
Tolerance
Capacitance
(4)Rated
Voltage
D05
3. Type & Dimensions
(Unit:mm)
g
(1)-1 L
(1)-2 W
(2) T
e
0.4±0.02
0.2±0.02
0.2±0.02
0.07 to 0.14
0.13 min.
4.Rated value
(3) Temperature Characteristics
(Public STD Code):C0G(EIA)
Temp. coeff
Temp. Range
or Cap. Change
(Ref.Temp.)
0±30 ppm/°C
25 to 125 °C
(25 °C)
(4)
Rated
Voltage
DC 16 V
(6)
(5) Nominal
Capacitance
Capacitance
Tolerance
22 pF
±5 %
Specifications and Test
Methods
(Operating
Temp. Range)
-55 to 125 °C
5.Package
mark
(8) Packaging
Packaging Unit
L
f180mm Reel
EMBOSSED W4P1
40000 pcs./Reel
Product specifications in this catalog are as of Apr.12,2015,and are subject to change or obsolescence without notice.
Please consult the approval sheet before ordering.
Please read rating and !Cautions first.
GRM0225C1C220JD05-01
1
L
(7)Murata’s (8)Packaging
Control Code
Code
■SPECIFICATIONS AND TEST METHODS
Specification
No
Item
1 Operating
Temperature Range
Temperature
Compensating Type
-55℃ to 125℃
2 Rated Voltage
See the previous pages.
3 Appearance
No defects or abnormalities.
4 Dimension
Within the specified dimensions.
5 Dielectric Strength
No defects or abnormalities.
6 Insulation Resistance
More than 10,000MΩ or 500Ω ∙F
(whichever is smaller)
7 Capacitance
Within the specified tolerance.
30pF and over:Q≧1000
8 Q/
Dissipation Factor (D.F.) 30pF and below:Q≧400+20C
C:Nominal Capacitance(pF)
9 Capacitance
No bias
Temperature
Characteristics
Within the specified
tolerance.(Table A-1)
Capacitance Drift *
Within ±0.2% or ±0.05pF
(Whichever is larger.)
*Not apply to 1X/25V
Test Method
High Dielectric
Constant Type
R6 : -55℃ to 85℃
R7 : -55℃ to 125℃
C8 : -55℃ to 105℃
E4 : 10℃ to 85℃
F5 : -30℃ to 85℃
L8, R9 : -55℃ to 150℃
Reference Temperature : 25℃
The rated voltage is defined as the maximum voltage which may be applied
continuously to the capacitor.
When AC voltage is superimposed on DC voltage, VP-P or VO-P, whichever is
larger, should be maintained within the rated voltage range.
Visual inspection.
Using calipers.
(GRM02 size is based on Microscope.)
No failure should be observed when 300% of the rated voltage
(ΔC to 7U and 1X) or 250% of the rated voltage (R6,R7,C8,E4,F5,L8 and R9)
is applied between the terminations for 1 to 5 seconds, provided the
charge/discharge current is less than 50mA.
The insulation resistance should be measured with a DC voltage
not exceeding the rated voltage at 25℃ and 75%RH max.
and within 2 minutes of charging, provided the charge/discharge
current is less than 50mA.
The capacitance/Q/D.F. should be measured at 25℃ at the frequency
and voltage shown in the table.
[R6,R7,C8,L8]
W.V.:100V : 0.025max.(C<0.068mF)
: 0.05max.(C≧0.068mF)
W.V.:50V/25V : 0.025max.
W.V.:16V/10V : 0.035max.
W.V.:6.3V/4V : 0.05max.(C<3.3mF)
: 0.1max.(C≧3.3mF)
[R9]
W.V.:50V : 0.05max.
[E4]
W.V.:25Vmin : 0.025max.
[F5]
W.V.:25Vmin : 0.05max. (C<0.1mF)
: 0.09max.(C≧0.1mF)
W.V.:16V/10V : 0.125max.
W.V.:6.3V
: 0.15max.
R6 : Within ±15%
(-55°C to +85°C)
R7 : Within ±15%
(-55°C to +125°C)
C8 : Within ±22%
(-55°C to +105°C)
L8 : Within ±15%
(-55°C to +125°C)
: Within +15/-40%
(+125°C to +150°C)
R9 : Within ±15%
(-55°C to +150°C)
E4 : Within +22/-56%
(+10°C to +85°C)
F5 : Within +22/-82%
(-30°C to +85°C)
(1)Temperature Compensating Type
Capacitance
C≦1000pF
C>1000pF
Frequency
1±0.1MHz
1±0.1kHz
Voltage
0.5 to 5Vrms
1±0.2Vrms
(2)High Dielectric Constant Type
Capacitance
C≦10μF
C>10μF
E4
Frequency
1±0.1kHz
120±24Hz
1±0.1kHz
Voltage
1±0.2Vrms
0.5±0.1Vrms
0.5±0.05Vrms
The capacitance change should be measured after 5min. at each
specified temp. stage.
(1)Temperature Compensating Type
The capacitance drift is calculated by dividing the differences between
the maximum and minimum measured values in the step 1,3 and 5
by the cap. value in step 3.
Step
1
2
3
4
5
Temperature(C)
25±2
-55±3
25±2
125±3(for ΔC)
85±3(for other TC)
25±2
(2)High Dielectric Constant Type
Step
1
2
3
4
5
Temperature(C)
25±2
Min.Operating Temp.±3
25±2
Max.Operating Temp.±3
25±2
Temp. of Step 2 : R7,R6,C8,L8,R9 : -55±3°C
E4 : +10±3°C
F5 : -30±3°C
Temp. of Step 4 : R7 : +125±3°C
R9,L8 : +150±3°C
R6,E4,F5 : +85±3°C
C8 : +105±3°C
10 Adhesive Strength
of Termination
No removal of the terminations or other defect should occur.
JEMCGS-0015R
2
・Initial measurement for high dielectric constant type
Perform a heat treatment at 150 +0/-10°C for one hour and
then set for 24±2 hours at room temperature.
Perform the initial measurement.
Solder the capacitor on the test jig(glass epoxy board) shown in Fig.3
using a eutectic solder.
Then apply 10N* force in parallel with the test jig for 10±1sec.
The soldering should be done either with an iron or using the reflow
method and should be conducted with care so that the soldering is
uniform and free of defects such as heat shock.
*1N(GRM02), 2N(GRM03), 5N(GRM15,GRM18)
■SPECIFICATIONS AND TEST METHODS
Specification
No
Item
Appearance
11 Vibration
Resistance
Temperature
Compensating Type
No defects or abnormalities.
Solder the capacitor on the test jig(glass epoxy board) shown in Fig.3
using a eutectic solder.
The capacitor should be subjected to a simple harmonic motion having
a total amplitude of 1.5mm, the frequency being varied uniformly between
Capacitance Within the specified tolerance.
Q/D.F.
12 Deflection
Appearance
30pF and over:Q≧1000
[R6,R7,C8,L8]
30pF and beloow:Q≧400+20C W.V.:100V : 0.025max.(C<0.068mF)
: 0.05max.(C≧0.068mF)
C:Nominal Capacitance(pF)
W.V.:50V/25V : 0.025max.
W.V.:16V/10V : 0.035max.
W.V.:6.3V/4V : 0.05max. (C<3.3mF)
: 0.1max.(C≧3.3mF)
[R9]
W.V.:50V : 0.05max.
[E4]
W.V.:25V : 0.025max.
[F5]
W.V.:25Vmin : 0.05max. (C<0.1mF)
: 0.09max.(C≧0.1mF)
W.V.:16V/10V : 0.125max.
W.V.:6.3V
: 0.15max.
the approximate limits of 10 and 55Hz.
No defects or abnormalities.
Solder the capacitor on the test jig(glass epoxy board) shown in Fig.1
using an eutectic solder.
Then apply a force in the direction shown in Fig 2 for 5±1 seconds.
The soldering should be done by the reflow method and should be
conducted with care so that the soldering is uniform and free of defects
such as heat shock.
Immerse the capacitor in a solution of ethanol (JIS-K-8101) and
rosin (JIS-K-5902) (25% rosin in weight proportion) .
Preheat at 80 to 120℃ for 10 to 30 seconds.
After preheating , immerse in an eutectic solder solution for
2±0.5 seconds at 230±5℃ or Sn-3.0Ag-0.5Cu solder solution
for 2±0.5 seconds at 245±5℃.
Capacitance Within ±5% or± 0.5pF
Change
(Whichever is larger)
Within ±10%
13 Solderability
of Termination
75% of the terminations is to be soldered evenly and continuously.
14 Resistance to
Soldering Heat
The measured and observed characteristics should satisfy
the specifications in the following table.
Appearance
Capacitance
Change
Q/D.F.
No defects or abnormalities.
Within ±2.5% or± 0.25pF
(Whichever is larger)
30pF and over:Q≧1000
30pF and beloow:Q≧400+20C
C:Nominal Capacitance(pF)
I.R.
Dielectric
Strength
15 Temperature Cycle
Appearance
The measured and observed characteristics should satisfy
the specifications in the following table.
No defects or abnormalities.
C:Nominal Capacitance(pF)
JEMCGS-0015R
R6,R7,R9,C8,L8 : Within ±7.5%
E4,F5
: Within ±20%
[R6,R7,C8,L8]
W.V.:100V : 0.025max.(C<0.068mF)
: 0.05max.(C≧0.068mF)
W.V.:50V/25V : 0.025max.
W.V.:16V/10V : 0.035max.
W.V.:6.3V/4V : 0.05max. (C<3.3mF)
: 0.1max.(C≧3.3mF)
[R9]
W.V.:50V : 0.05max.
[E4]
W.V.:25V : 0.025max.
[F5]
W.V.:25Vmin : 0.05max. (C<0.1mF)
: 0.09max.(C≧0.1mF)
W.V.:16V/10V : 0.125max.
W.V.:6.3V
: 0.15max.
The frequency range, from 10 to 55Hz and return to 10Hz, should be
traversed in approximately 1 minute. This motion should be applied for
a period of 2 hours in each 3 mutually perpendicular directions
(total of 6 hours).
Preheat the capacitor at 120 to 150℃ for 1 min.(GRM31 size max.)
Preheat the capacitor at 100 to 120℃ for 1 min and
170 to 200℃ for 1 min.(GRM32 size min.)
Immerse the capacitor in an eutectic solder solution or
Sn-3.0Ag-0.5Cu solder solution at 270±5℃ for 10±0.5 seconds.
Set at room temperature for 24±2 hours, then measure.
· Initial measurement for high dielectric constant type
Perform a heat treatment at 150+0/-10°C for one hour and then set
at room temperature for 24±2 hours.
Perform the initial measurement.
Set the capacitor by reflow soldering on the glass epoxy PCB with
Sn-3.0Ag-0.5Cu solder. Preheat the capacitor on the PCB at 120 to
150℃ for 1 minute by use of hot plate. Heat the capacitor on the
PCB at 270±5℃ for 10±0.5 seconds on the hot plate.
Set at room temperature for 24±2 hours, then measure.
· Initial measurement for high dielectric constant type
Perform a heat treatment at 150+0/-10°C for one hour and then set
at room temperature for 24±2 hours.
Perform the initial measurement.
More than 10,000MW or 500W·F(Whichever is smaller)
No defects.
Capacitance Within ±2.5% or± 0.25pF
Change
(Whichever is larger)
30pF and over:Q≧1000
Q/D.F.
30pF and beloow:Q≧400+20C
I.R.
Dielectric
Strength
Test Method
High Dielectric
Constant Type
R6,R7,R9,C8,L8 : Within ±7.5%
E4,F5
: Within ±20%
[R6,R7,C8,L8]
W.V.:100V : 0.025max.(C<0.068mF)
: 0.05max.(C≧0.068mF)
W.V.:50V/25V : 0.025max.
W.V.:16V/10V : 0.035max.
W.V.:6.3V/4V : 0.05max. (C<3.3mF)
: 0.1max.(C≧3.3mF)
[R9]
W.V.:50V : 0.05max.
[E4]
W.V.:25V : 0.025max.
[F5]
W.V.:25Vmin : 0.05max. (C<0.1mF)
: 0.09max.(C≧0.1mF)
W.V.:16V/10V : 0.125max.
W.V.:6.3V
: 0.15max.
More than 10,000MW or 500W·F(Whichever is smaller)
No defects.
3
Solder the capacitor on the test jig(glass epoxy board) shown in Fig.3
using an eutectic solder.
Perform the five cycles according to the four heat treatments shown
in the following table.
Set for 24±2 hours at room temperature, then measure.
Step
Temp.(C)
1
Min.
Operating Temp.+0/-3
Time (min)
30±3
2
Room Temp
2 to 3
3
Max.
Operating Temp.+3/-0
30±3
4
Room Temp
2 to 3
· Initial measurement for high dielectric constant type
Perform a heat treatment at 150+0/-10C for one hour and then set
at room temperature for 24±2 hours.
Perform the initial measurement.
Step
1
2
■SPECIFICATIONS AND TEST METHODS
No
Item
16 Humidity
(Steady
State)
Specification
Temperature
High Dielectric
Compensating Type
Constant Type
The measured and observed characteristics should satisfy
the specifications in the following table.
No defects or abnormalities.
Appearance
Capacitance Within ±5% or ±0.5pF
Change
(Whichever is larger)
30pF and over: Q≧350
Q/D.F.
10pF and over
30pF and below: Q≧275+5C/2
10pF and below: Q≧200+10C
C:Nominal Capacitance(pF)
I.R.
17 Humidity Load
The measured and observed characteristics should satisfy
the specifications in the following table.
No defects or abnormalities.
30pF and over: Q≧200
30pF and below: Q≧100+10C/3
C:Nominal Capacitance(pF)
I.R.
18 High Temperature
Load
R6,R7,R9,C8,L8 : Within ±12.5%
E4 : Within ±30%
F5 : Within ±30%(W.V.>10V)
F5 : Within +30/-40%(W.V.≦10V)
[R6,R7,R9,C8,L8]
W.V.:100V : 0.05max.( C<0.068mF)
: 0.075max.(C≧0.068mF)
W.V.:50V/25V : 0.05max.
W.V.:16V/10V : 0.05max.
W.V.:6.3V/4V : 0.075max.(C<3.3mF)
: 0.125max.(C≧3.3mF)
[R9]
W.V.:50V : 0.075max.
[E4]
W.V.:25V : 0.05max.
[F5]
W.V.:25Vmin : 0.075max. (C<0.1mF)
: 0.125max. (C≧0.1mF)
W.V.:16V/10V : 0.15max.
W.V.:6.3V
: 0.2max.
The measured and observed characteristics should satisfy
the specifications in the following table.
30pF and over: Q≧350
10pF and over
30pF and below: Q≧275+5C/2
10pF and below: Q≧200+10C
C:Nominal Capacitance (pF)
I.R.
R6,R7,R9,C8,L8:Within ±12.5%
E4
:Within ±30%
F5
:Within ±30%(Cap D
(2) Add slits in the board separation part.
A > B
(3) Keep the mounting position of the component away from the board separation surface.
A > C
①
Perforation
C
B
D
A
1A
Slit
③②
[Mounting Capacitors Near Screw Holes]
When a capacitor is mounted near a screw hole, it may be affected by the board deflection that occurs during
the tightening of the screw. Mount the capacitor in a position as far away from the screw holes as possible.
Screw Hole
Recommended
2.Information before Mounting
1. Do not re-use capacitors that were removed from the equipment.
2. Confirm capacitance characteristics under actual applied voltage.
3. Confirm the mechanical stress under actual process and equipment use.
4. Confirm the rated capacitance, rated voltage and other electrical characteristics before assembly.
5. Prior to use, confirm the solderability for the capacitors that were in long-term storage.
6. Prior to measuring capacitance, carry out a heat treatment for capacitors that were in long-term storage.
7.The use of Sn-Zn based solder will deteriorate the reliability of the MLCC.
Please contact our sales representative or product engineers on the use of Sn-Zn based solder in advance.
JEMCGC-2701W
15
1C 1B
!
3.Maintenance of the Mounting (pick and place) Machine
1. Make sure that the following excessive forces are not applied to the capacitors.
1-1. In mounting the capacitors on the printed circuit board, any bending force against them shall be kept
to prevent them from any bending damage or cracking. Please take into account the following precautions
and recommendations for use in your process.
(1) Adjust the lowest position of the pickup nozzle so as not to bend the printed circuit board.
(2) Adjust the nozzle pressure within a static load of 1N to 3N during mounting.
[Incorrect]
Suction Nozzle
Deflection
Board
Board Guide
[Correct]
Backup Pin
2.Dirt particles and dust accumulated between the suction nozzle and the cylinder inner wall prevent
the nozzle from moving smoothly. This imposes greater force upon the chip during mounting,
causing cracked chips. Also, the locating claw, when worn out, imposes uneven forces on the chip
when positioning, causing cracked chips. The suction nozzle and the locating claw must be maintained,
checked and replaced periodically.
JEMCGC-2701W
16
Caution
!
Caution
4-1.Reflow Soldering
1. When sudden heat is applied to the components, the
mechanical strength of the components will decrease
because a sudden temperature change causes
deformation inside the components. In order to prevent
mechanical damage to the components, preheating is
required for both the components and the PCB.
Preheating conditions are shown in table 1. It is required to
keep the temperature differential between the solder and
the components surface (ΔT) as small as possible.
[Standard Conditions for Reflow Soldering]
Temperature(℃)
Soldering
Peak Temperature
220℃
Gradual
Cooling
ΔT
190℃
170℃
150℃
Preheating
2. Solderability of tin plating termination chips might be
deteriorated when a low temperature soldering profile where
the peak solder temperature is below the melting point of
tin is used. Please confirm the solderability of tin plated
termination chips before use.
Table 1
Part Number
Temperature Differential
GRM01/02/03/15/18/21/31
GRM32/43/55
ΔT≦190℃
Time
30-60 seconds
[Allowable Reflow Soldering Temperature and Time]
Soldering Temperature(℃)
3. When components are immersed in solvent after mounting,
be sure to maintain the temperature difference (ΔT)
between the component and the solvent within the range
shown in the table 1.
60-120 seconds
ΔT≦130℃
280
270
260
250
240
230
220
0
30
60
90
120
Soldering Time(s)
In the case of repeated soldering, the accumulated
soldering time must be within the range shown above.
Recommended Conditions
Lead Free Solder
Peak Temperature
Atmosphere
240 to 260℃
Air or N2
Lead Free Solder: Sn-3.0Ag-0.5Cu
4. Optimum Solder Amount for Reflow Soldering
4-1. Overly thick application of solder paste results in
a excessive solder fillet height.
This makes the chip more susceptible to mechanical
and thermal stress on the board and may cause
the chips to crack.
4-2. Too little solder paste results in a lack of adhesive
strength on the outer electrode, which may result in
chips breaking loose from the PCB.
4-3. Make sure the solder has been applied smoothly
to the end surface to a height of 0.2mm* min.
Inverting the PCB
Make sure not to impose any abnormal mechanical shocks to the PCB.
JEMCGC-2701W
17
0.2mm min*
*GRM01
: 1/2 of Chip Thickness min.
GRM02/03: 1/3 of Chip Thickness min.
in section
!
Caution
4-2.Flow Soldering
[Standard Conditions for Flow Soldering]
1. Do not apply flow soldering to chips not listed in Table 2.
Table 2
Part Number
Temperature(℃)
Soldering
Peak
Temperature
Temperature Differential
GRM18/21/31
ΔT≦150℃
Soldering
Gradual
Cooling
ΔT
Preheating
Peak
Temperature
Preheating
3. Excessively long soldering time or high soldering
temperature can result in leaching of the outer electrodes,
causing poor adhesion or a reduction in capacitance value
due to loss of contact between the electrodes and end termination.
4. When components are immersed in solvent after mounting,
be sure to maintain the temperature differential (ΔT)
between the component and solvent within the range
shown in the table 2.
30-90 seconds
Time
5 seconds max.
[Allowable Flow Soldering Temperature and Time]
Soldering mperature(℃)
2. When sudden heat is applied to the components, the
mechanical strength of the components will decrease
because a sudden temperature change causes
deformation inside the components. In order to prevent
mechanical damage to the components, preheating is
required for both of the components and the PCB.
Preheating conditions are shown in table 2. It is required to
keep the temperature differential between the solder and
the components surface (ΔT) as low as possible.
280
270
260
250
240
230
220
0
10
20
In the case of repeated soldering, the accumulated
soldering time must be within the range shown above.
Recommended Conditions
Lead Free Solder
Preheating Peak Temperature
100 to 120℃
Soldering Peak Temperature
250 to 260℃
Atmosphere
Air
Lead Free Solder: Sn-3.0Ag-0.5Cu
5. Optimum Solder Amount for Flow Soldering
Up to Chip Thickness
5-1. The top of the solder fillet should be lower than the
thickness of components. If the solder amount is
excessive, the risk of cracking is higher during
board bending or any other stressful condition.
JEMCGC-2701W
Adhesive
18
30
40
Soldering Time(s)
in section
!
Caution
4-3.Correction of Soldered Portion
When sudden heat is applied to the capacitor, distortion caused by the large temperature difference occurs internally,
and can be the cause of cracks. Capacitors also tend to be affected by mechanical and thermal stress depending
on the board preheating temperature or the soldering fillet shape, and can be the cause of cracks.
Please refer to "1. PCB Design" or "3. Optimum solder amount" for the solder amount and the fillet shapes.
1. Correction with a Soldering Iron
1-1. In order to reduce damage to the capacitor, be sure to preheat the capacitor and the mounting board.
Preheat to the temperature range shown in Table 3. A hot plate, hot air type preheater, etc. can be used for preheating.
1-2. After soldering, do not allow the component/PCB to cool down rapidly.
1-3. Perform the corrections with a soldering iron as quickly as possible. If the soldering iron is applied too long,
there is a possibility of causing solder leaching on the terminal electrodes, which will cause deterioration of the
adhesive strength and other problems.
Table 3
Temperature of
Preheating
Temperature
Part Number
Atmosphere
Soldering Iron tip
Temperature
Differential(ΔT)
GRM03/15/18/21/31
350℃ max.
150℃ min.
ΔT≦190℃
Air
GRM32/43/55
280℃ max.
150℃ min.
ΔT≦130℃
Air
Lead Free Solder: Sn-3.0Ag-0.5Cu
2. Correction with Spot Heater
Compared to local heating with a soldering iron, hot air heating by a spot heater heats the overall component
and board, therefore, it tends to lessen the thermal shock. In the case of a high density mounted board,
a spot heater can also prevent concerns of the soldering iron making direct contact with the component.
2-1. If the distance from the hot air outlet of the spot heater to the component is too close, cracks may occur due to
thermal shock. To prevent this problem, follow the conditions shown in Table 4.
2-2. In order to create an appropriate solder fillet shape, it is recommended that hot air be applied at the angle shown
in Figure 1.
Table 4
Distance
5mm or more
Hot Air Application angle
45° *Figure 1
Hot Air Temperature Nozzle Outlet 400°C max.
Less than 10 seconds
Application Time
(1206 (in inch) / (3216 (in mm) size or smaller)
Less than 30 seconds
(1210 (in inch) / 3225 (in mm) size or larger)
[Figure 1]
One-hole Nozzle
an Angle of 45
3. Optimum solder amount when re-working with a soldering iron
3-1. In the case of 0603 (in inch) / 1608 (in mm) and smaller
sizes (GRM03/15/18), the top of the solder fillet should
be lower than 2/3 of the thickness of the component or
0.5mm, whichever is smaller.
In the case of 0805 (in inch) / 2012(in mm) and larger
sizes (GRM21/31/32/43/55), the top of the solder fillet
should be lower than 2/3 of the thickness of the component.
If the solder amount is excessive, the risk of cracking is higher
during board bending or under any other stressful condition.
3-2. A soldering iron with a tip of ø3mm or smaller should be used.
It is also necessary to keep the soldering iron from touching
the components during the re-work.
3-3. Solder wire with ø0.5mm or smaller is required for soldering.
JEMCGC-2701W
19
Solder Amount
in section
!
Caution
5.Washing
Excessive ultrasonic oscillation during cleaning can cause the PCBs to resonate, resulting in cracked chips
or broken solder joints. Take note not to vibrate PCBs.
6.Electrical Test on Printed Circuit Board
1. Confirm position of the backup pin or specific jig, when inspecting the electrical performance of a
capacitor after mounting on the printed circuit board.
1-1. Avoid bending the printed circuit board by the pressure of a test-probe, etc.
The thrusting force of the test probe can flex the PCB, resulting in cracked chips or open solder
joints. Provide backup pins on the back side of the PCB to prevent warping or flexing.
Install backup pins as close to the test-probe as possible.
1-2. Avoid vibration of the board by shock when a test -probe contacts a printed circuit board.
[Not Recommended]
[Recommended]
Backup
Pin
Peeling
Test-probe
Test-probe
7.Printed Circuit Board Cropping
1. After mounting a capacitor on a printed circuit board, do not apply any stress to the capacitor that
caused bending or twisting the board.
1-1. In cropping the board, the stress as shown at right may cause the capacitor to crack.
Cracked capacitors may cause deterioration of the insulation resistance, and result in a short.
Avoid this type of stress to a capacitor.
①
[Bending]
[Twisting]
1A
2. Check the cropping method for the printed circuit board in advance.
2-1. Printed circuit board cropping shall be carried out by using a jig or an apparatus (Disk separator, router
type separator, etc.) to prevent the mechanical stress that can occur to the board.
Board Separation Method
Level of stress on board
Recommended
Notes
Hand Separation
Nipper Separation
High
×
Hand and nipper
separation apply a high
level of stress.
Use another method.
(1) Board Separation Jig
Medium
△*
Board Separation Apparatus
2) Disk Separator
3) Router Type Separator
Medium
Low
△*
◯
· Board handling
· Board handling
· Layout of slits
· Board bending direction · Design of V groove
· Layout of capacitors
· Arrangement of blades
· Controlling blade life
Board handling
* When a board separation jig or disk separator is used, if the following precautions are not observed,
a large board deflection stress will occur and the capacitors may crack.
Use router type separator if at all possible.
JEMCGC-2701W
20
Caution
!
(1) Example of a suitable jig
[In the case of Single-side Mounting]
An outline of the board separation jig is shown as follows.
Recommended example: Stress on the component mounting position can be minimized by holding the
portion close to the jig, and bend in the direction towards the side where the capacitors are mounted.
Not recommended example: The risk of cracks occurring in the capacitors increases due to large stress
being applied to the component mounting position, if the portion away from the jig is held and bent in the
direction opposite the side where the capacitors are mounted.
Recommended
[Outline of jig]
Not recommended
Direction of load
Printed Circuit Board
V-groove
Printed circuit
board
Direction of
load
Load point
Component
s
Printed circuit
board
Load point
Board Cropping Jig
Components
[In the case of Double-sided Mounting]
Since components are mounted on both sides of the board, the risk of cracks occurring can not be avoided with the
above method. Therefore, implement the following measures to prevent stress from being applied to the components.
(Measures)
(1) Consider introducing a router type separator.
If it is difficult to introduce a router type separator, implement the following measures.
(Refer to item 1. Mounting Position)
(2) Mount the components parallel to the board separation surface.
(3) When mounting components near the board separation point, add slits in the separation position
near the component.
(4) Keep the mounting position of the components away from the board separation point.
(2) Example of a Disk Separator
An outline of a disk separator is shown as follows. As shown in the Principle of Operation, the top
blade and bottom blade are aligned with the V-grooves on the printed circuit board to separate the board.
In the following case, board deflection stress will be applied and cause cracks in the capacitors.
(1) When the adjustment of the top and bottom blades are misaligned, such as deviating in the top-bottom,
left-right or front-rear directions
(2) The angle of the V groove is too low, depth of the V groove is too shallow, or the V groove is misaligned
top-bottom
IF V groove is too deep, it is possible to brake when you handle and carry it. Carefully design depth of the
V groove with consideration about strength of material of the printed circuit board.
[ Outline of Machine ]
[ Principle of Operation ]
[ Cross-section Diagram ]
Top Blade
Printed Circuit Board
Top Blade
V-groove
Bottom Blade
Printed Circuit Board
Recommended
Top Blade
Top-bottom Misalignment
Top Blade
Bottom Blade
Example of
Recommended
V-groove Design
JEMCGC-2701W
V-groove
Left-right Misalignment
Not recommended
Left-right Misalignment
Top Blade
Bottom Blade
Front-rear Misalignment
Top Blade
Bottom Blade
Not Recommended
Low-Angle
Depth too Shallow
21
Bottom Blade
Depth too Deep
!
(3) Example of Router Type Separator
The router type separator performs cutting by a router
rotating at a high speed. Since the board does not
bend in the cutting process, stress on the board can
be suppressed during board separation.
When attaching or removing boards to/from the router type
separator, carefully handle the boards to prevent bending.
[ Outline Drawing ]
Router
8. Assembly
1. Handling
If a board mounted with capacitors is held with one hand, the board may bend.
Firmly hold the edges of the board with both hands when handling.
If a board mounted with capacitors is dropped, cracks may occur in the capacitors.
Do not use dropped boards, as there is a possibility that the quality of the capacitors may be impaired.
2. Attachment of Other Components
2-1. Mounting of Other Components
Pay attention to the following items, when mounting other components on the back side of the board after
capacitors have been mounted on the opposite side.
When the bottom dead point of the suction nozzle is set too low, board deflection stress may be applied
to the capacitors on the back side (bottom side), and cracks may occur in the capacitors.
· After the board is straightened, set the bottom dead point of the nozzle on the upper surface of the board.
· Periodically check and adjust the bottom dead point.
Suction Nozzle
2-2. Inserting Components with Leads into Boards
When inserting components (transformers, IC, etc.) into boards, bending the board may cause cracks in the
capacitors or cracks in the solder. Pay attention to the following.
· Increase the size of the holes to insert the leads, to reduce the stress on the board during insertion.
· Fix the board with backup pins or a dedicated jig before insertion.
· Support below the board so that the board does not bend. When using multiple backup pins on the board,
periodically confirm that there is no difference in the height of each backup pin.
Component with Leads
2-3. Attaching/Removing Sockets
When the board itself is a connector, the board may bend when a socket is attached or removed.
Plan the work so that the board does not bend when a socket is attached or removed.
Socket
2-4. Tightening Screws
The board may be bent, when tightening screws, etc. during the attachment of the board to a shield or
chassis. Pay attention to the following items before performing the work.
· Plan the work to prevent the board from bending.
· Use a torque screwdriver, to prevent over-tightening of the screws.
· The board may bend after mounting by reflow soldering, etc. Please note, as stress may be applied
to the chips by forcibly flattening the board when tightening the screws.
Screwdriver
JEMCGC-2701W
22
Caution
!
Caution
■ Others
1. Under Operation of Equipment
1-1. Do not touch a capacitor directly with bare hands during operation in order to avoid the danger of an electric shock.
1-2. Do not allow the terminals of a capacitor to come in contact with any conductive objects (short-circuit).
Do not expose a capacitor to a conductive liquid, inducing any acid or alkali solutions.
1-3. Confirm the environment in which the equipment will operate is under the specified conditions.
Do not use the equipment under the following environments.
(1) Being spattered with water or oil.
(2) Being exposed to direct sunlight.
(3) Being exposed to ozone, ultraviolet rays, or radiation.
(4) Being exposed to toxic gas (e.g., hydrogen sulfide, sulfur dioxide, chlorine, ammonia gas etc.)
(5) Any vibrations or mechanical shocks exceeding the specified limits.
(6) Moisture condensing environments.
1-4. Use damp proof countermeasures if using under any conditions that can cause condensation.
2. Others
2-1. In an Emergency
(1) If the equipment should generate smoke, fire, or smell, immediately turn off or unplug the equipment.
If the equipment is not turned off or unplugged, the hazards may be worsened by supplying continuous power.
(2) In this type of situation, do not allow face and hands to come in contact with the capacitor or burns may be caused
by the capacitor's high temperature.
2-2. Disposal of waste
When capacitors are disposed of, they must be burned or buried by an industrial waste vendor with the appropriate
licenses.
2-3. Circuit Design
(1) Addition of Fail Safe Function
Capacitors that are cracked by dropping or bending of the board may cause deterioration of the
insulation resistance, and result in a short.If the circuit being used may cause an electrical shock,
smoke or fire when a capacitor is shorted, be sure to install fail-safe functions, such as a fuse,
to prevent secondary accidents.
(2) The GRM series are not safety standard certified products.
2-4. Remarks
Failure to follow the cautions may result, worst case, in a short circuit and smoking when the product is used.
The above notices are for standard applications and conditions. Contact us when the products are used in special
mounting conditions.
Select optimum conditions for operation as they determine the reliability of the product after assembly.
The data herein are given in typical values, not guaranteed ratings.
JEMCGC-2701W
23
Notice
■ Rating
1.Operating Temperature
1. The operating temperature limit depends on the capacitor.
1-1. Do not apply temperatures exceeding the upper operating temperature.
It is necessary to select a capacitor with a suitable rated temperature that will cover the operating temperature range.
It is also necessary to consider the temperature distribution in equipment and the seasonal temperature variable
factor.
1-2. Consider the self-heating factor of the capacitor
The surface temperature of the capacitor shall be the upper operating temperature or less when including
the self-heating factors.
2.Atmosphere Surroundings (gaseous and liquid)
1. Restriction on the operating environment of capacitors.
1-1. Capacitors, when used in the above, unsuitable, operating environments may deteriorate due to the corrosion
of the terminations and the penetration of moisture into the capacitor.
1-2. The same phenomenon as the above may occur when the electrodes or terminals of the capacitor are subject
to moisture condensation.
1-3. The deterioration of characteristics and insulation resistance due to the oxidization or corrosion of terminal
electrodes may result in breakdown when the capacitor is exposed to corrosive or volatile gases or solvents
for long periods of time.
3.Piezo-electric Phenomenon
1. When using high dielectric constant type capacitors in AC or pulse circuits, the capacitor itself vibrates
at specific frequencies and noise may be generated.
Moreover, when the mechanical vibration or shock is added to capacitor, noise may occur.
JEMCGC-2701W
24
Notice
■Soldering and Mounting
1.PCB Design
1. Notice for Pattern Forms
1-1. Unlike leaded components, chip components are susceptible to flexing stresses since they are mounted
directly on the substrate.
They are also more sensitive to mechanical and thermal stresses than leaded components.
Excess solder fillet height can multiply these stresses and cause chip cracking.
When designing substrates, take land patterns and dimensions into consideration to eliminate the possibility
of excess solder fillet height.
1-2. There is a possibility of chip cracking caused by PCB expansion/contraction with heat, because stress
on a chip is different depending on PCB material and structure.When the thermal expansion coefficient
greatly differs between the board used for mounting and the chip,it will cause cracking of the chip due to
the thermal expansion and contraction. When capacitors are mounted on a fluorine resin printed circuit
board or on a single-layered glass epoxy board, it may also cause cracking of the chip for the same reason.
Pattern Forms
Prohibited
Correct
Chassis
Solder Resist
Solder (ground)
Placing Close to Chassis
Electrode Pattern
in section
Lead Wire
in section
Solder Resist
Placing of Chip
Components
and Leaded
Components
in section
Soldering Iron
in section
Lead Wire
Placing of Leaded
Components
after Chip Component
Solder Resist
in section
in section
Solder Resist
ソルダレジスト
Lateral Mounting
JEMCGC-2701W
25
Notice
2. Land Dimensions
Chip Capacitor
2-1. Chip capacitors can be cracked due to the stress
of PCB bending , etc. if the land area is larger than
needed and has an excess amount of solder.
Please refer to the land dimensions in table 1
for flow soldering, table 2 for reflow soldering.
c
Land
Please confirm the suitable land dimension by
evaluating of the actual SET / PCB.
Table 1 Flow Soldering Method
Dimensions
L×W
Part Number
b
a
Solder Resist
a
b
c
GRM18
1.6×0.8
0.6 to 1.0
0.8 to 0.9
0.6 to 0.8
GRM21
2.0×1.25
1.0 to 1.2
0.9 to 1.0
0.8 to 1.1
GRM31
3.2×1.6
2.2 to 2.6
1.0 to 1.1
1.0 to 1.4
Flow soldering can only be used for products with a chip size of 1.6x0.8mm to 3.2x1.6mm.
Table 2 Reflow Soldering Method
Dimensions
L×W
(Dimensions
Part Number
Tolerance)
a
b
c
GRM01
0.25×0.125
0.10 to 0.11
0.07 to 0.12
0.125 to 0.145
GRM02
0.4×0.2
0.16 to 0.2
0.12 to 0.18
0.2 to 0.23
GRM03
0.6×0.3
0.2 to 0.3
0.2 to 0.35
0.2 to 0.4
0.3 to 0.5
0.35 to 0.45
0.4 to 0.6
0.4 to 0.6
0.40 to 0.50
0.5 to 0.7
0.6 to 0.8
0.6 to 0.7
0.6 to 0.8
0.7 to 0.9
0.7 to 0.8
0.8 to 1.0
1.2
0.6
1.25
1.2
0.6 to 0.8
1.2 to 1.4
1.0 to 1.4
0.6 to 0.8
1.2 to 1.4
1.8 to 2.0
0.9 to 1.2
1.5 to 1.7
1.9 to 2.1
1.0 to 1.3
1.7 to 1.9
GRM15
GRM18
GRM21
GRM31
1.0×0.5
(within ±0.10)
1.0×0.5
(±0.15/±0.20)
1.6×0.8
(within ±0.10)
1.6×0.8
(±0.15/±0.20)
2.0×1.25
(within ±0.10)
2.0×1.25
(±0.15)
2.0×1.25
(±0.20)
3.2×1.6
(within±0.20)
3.2×1.6
(±0.30)
GRM32
3.2×2.5
2.0 to 2.4
1.0 to 1.2
1.8 to 2.3
GRM43
4.5×3.2
3.0 to 3.5
1.2 to 1.4
2.3 to 3.0
GRM55
5.7×5.0
4.0 to 4.6
1.4 to 1.6
3.5 to 4.8
(in mm)
(in mm)
JEMCGC-2701W
26
Notice
3. Board Design
When designing the board, keep in mind that the amount of strain which occurs will increase depending on the size
and material of the board.
Relationship with amount of strain to the board thickness, length, width, etc.]
ε=
3PL
2Ewh2
Relationship between load and strain
ε:Strain on center of board (μst)
L:Distance between supporting points (mm)
w :Board width (mm)
h :Board thickness (mm)
E :Elastic modulus of board (N/m2=Pa)
Y :Deflection (mm)
P :Load (N)
When the load is constant, the following relationship can be established.
· As the distance between the supporting points (L) increases,the amount of strain also increases.
→Reduce the distance between the supporting points.
· As the elastic modulus (E) decreases, the amount of strain increases.
→Increase the elastic modulus.
· As the board width (w) decreases, the amount of strain increases.
→Increase the width of the board.
· As the board thickness (h) decreases, the amount of strain increases.
→Increase the thickness of the board.
Since the board thickness is squared, the effect on the amount of strain becomes even greater.
2.Adhesive Application
1. Thin or insufficient adhesive can cause the chips to loosen or become disconnected during flow soldering.
The amount of adhesive must be more than dimension c, shown in the drawing at right, to obtain the correct bonding
strength. The chip's electrode thickness and land thickness must also be taken into consideration.
Chip Capacitor
a=20 to 70μm
b=30 to 35μm
c=50 to 105μm
a
c
Board
Adhesive
Land
b
2. Low viscosity adhesive can cause chips to slip after mounting. The adhesive must have a viscosity of
5000Pa • s (500ps) min. (at 25℃)
3. Adhesive Coverage
Size (L×W) (in mm)
1.6 × 0.8
2.0 × 1.25
3.2 × 1.6
Adhesive Coverage*
0.05mg min.
0.1mg min.
0.15mg min.
*Nominal Value
3.Adhesive Curing
1. Insufficient curing of the adhesive can cause chips to disconnect during flow soldering and causes
deterioration in the insulation resistance between the outer electrodes due to moisture absorption.
Control curing temperature and time in order to prevent insufficient hardening.
4.Flux
1. An excessive amount of flux generates a large quantity of flux gas, which can cause a deterioration of solderability,
so apply flux thinly and evenly throughout. (A foaming system is generally used for flow solderring.)
2. Flux containing too high a percentage of halide may cause corrosion of the outer electrodes unless there is
sufficient cleaning. Use flux with a halide content of 0.1% max.
3. Do not use strong acidic flux.
4. Do not use water-soluble flux.*
(*Water-soluble flux can be defined as non-rosin type flux including wash-type flux and non-wash-type flux.)
JEMCGC-2701W
27
Notice
5.Flow Soldering
Set temperature and time to ensure that leaching of the
outer electrode does not exceed 25% of the chip end
area as a single chip (full length of the edge A-B-C-D
shown at right) and 25% of the length A-B shown as
mounted on substrate.
[As a Single Chip]
A
B
D
Outer Electrode
C
[As Mounted on Substrate]
B
A
6.Washing
1. Please evaluate the capacitor using actual cleaning equipment and conditions to confirm the quality,
and select the solvent for cleaning.
2. Unsuitable cleaning solvent may leave residual flux or other foreign substances, causing deterioration of
electrical characteristics and the reliability of the capacitors.
3. Select the proper cleaning conditions.
3-1. Improper cleaning conditions (excessive or insufficient) may result in the deterioration of the performance
of the capacitors.
7.Coating
1. A crack may be caused in the capacitor due to the stress of the thermal contraction of the resin during curing process.
The stress is affected by the amount of resin and curing contraction. Select a resin with low curing contraction.
The difference in the thermal expansion coefficient between a coating resin or a molding resin and the capacitor
may cause the destruction and deterioration of the capacitor such as a crack or peeling, and lead to the deterioration
of insulation resistance or dielectric breakdown.
Select a resin for which the thermal expansion coefficient is as close to that of the capacitor as possible.
A silicone resin can be used as an under-coating to buffer against the stress.
2. Select a resin that is less hygroscopic.
Using hygroscopic resins under high humidity conditions may cause the deterioration of the insulation resistance
of a capacitor. An epoxy resin can be used as a less hygroscopic resin.
■ Others
1.Transportation
1. The performance of a capacitor may be affected by the conditions during transportation.
1-1. The capacitors shall be protected against excessive temperature, humidity and mechanical force during transportation.
(1) Climatic condition
・ low air temperature : -40℃
・ change of temperature air/air : -25℃/+25℃
・ low air pressure : 30 kPa
・ change of air pressure : 6 kPa/min.
(2) Mechanical condition
Transportation shall be done in such a way that the boxes are not deformed and forces are not directly passed
on to the inner packaging.
1-2. Do not apply excessive vibration, shock, or pressure to the capacitor.
(1) When excessive mechanical shock or pressure is applied to a capacitor, chipping or cracking may occur
in the ceramic body of the capacitor.
(2) When the sharp edge of an air driver, a soldering iron, tweezers, a chassis, etc. impacts strongly on the surface
of the capacitor, the capacitor may crack and short-circuit.
1-3. Do not use a capacitor to which excessive shock was applied by dropping etc.
A capacitor dropped accidentally during processing may be damaged.
2.Characteristics Evaluation in the Actual System
1. Evaluate the capacitor in the actual system,to confirm that there is no problem with the performance and specification
values in a finished product before using.
2. Since a voltage dependency and temperature dependency exists in the capacitance of high dielectric type ceramic
capacitors, the capacitance may change depending on the operating conditions in the actual system.
Therefore,be sure to evaluate the various characteristics, such as the leakage current and noise absorptivity,
which will affect the capacitance value of the capacitor.
3. In addition,voltages exceeding the predetermined surge may be applied to the capacitor by the inductance in
the actual system. Evaluate the surge resistance in the actual system as required.
JEMCGC-2701W
28
!
1.Please make sure that your product has been evaluated in view of your specifications with our
product being mounted to your product.
2.Your are requested not to use our product deviating from this product specification.
3.We consider it not appropriate to include any terms and conditions with regard to the business
transaction in the product specifications, drawings or other technical documents. Therefore,
if your technical documents as above include such terms and conditions such as warranty clause,
product liability clause, or intellectual property infringement liability clause, they will be deemed to
be invalid.
JEMCGC-2701W
29
NOTE