2/14
(Unit )mm
L
a
W
a
②
Dimension
L
2.0±0.2
W
1.25±0.2
t
0.4±0.1
a
0.4±0.2
b
0.4±0.2
③
t
①
Code letter
b
④
b
Fig.1 Construction and dimensions
NOTE :
① Resistive element
② Electrode
③ Protective coat
④ Substrate
TITLE:
Specification for
Chip resistor RR1220 series
Nichrome alloy thin film
Sn-Pb plating or Tin plating
Polyimid resin coating
Alumina ceramic
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
3/14
4.2 Rated dissipation at 70deg C
0.1W
[ JIS Code 2A ]
Rated dissipation is based on continuous full load operation at rated ambient temperature of 70deg C.
For resistors operated at ambient temperature in excess of 70deg C, the maximum load shall be derated
in accordance with the following curve.
%
100
Percentage of the
rated dissipation
50
Fig.3 Derating curve
Area of
Recommended
operation
70
0 -55
Ambient temperature
125
Where E : Rated voltage
R : Rated resistance
P : Rated dissipation
(V)
(Ω)
(W)
deg C
4.3 Rated voltage
The d.c. or a.c. r.m.s voltage shall be calculated from the following expression.
When the rated voltage exceeds the limiting element voltage, the limiting element voltage shall be the
rated voltage.
E=√R×P
100 V
200 V
-55 to +125 deg C
-55 to +125 deg C
4.4 Limiting element voltage
4.5 Maximum overload voltage
4.6 Operating temperature range
4.7 Storage temperature range
5. Marking
5.1 Marking in E24 series
A rated resistance shall be marked on the protect coating with three digit of number.
See para.2. (3)
(Example)
3.9kΩ→39 00→ 392
5.2 Marking in E96 series
A manufacturing date code or four digit of number shall be marked on the protect coating.
(1) A manufacturing date code
Refer to JIS C 5201-1 Annex 1 Table5
(2) Four digit of number
See para.2. (3)
(Example)
49.9kΩ→499 00→ 4992
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
4/14
6. Performance
The test method shall be as specified in IEC 60115-1.
Standard atmospheric conditions
Unless otherwise specified, the standard range of atmospheric conditions for making measurements
tests is as follows;
Temperature
5 to 35deg C
Relative humidity
45 to 85%RH
Air pressure
86 to 106kPa
If there is any doubt about results, measurements shall be made within the following limits;
Temperature
20±2deg C
Relative humidity
60 to 70%RH
Air pressure
86 to 106kPa
6.1 Electrical
6.1.1 Resistance and tolerance
Method;
Refer to IEC 60115-1, Sub-clause 4.5.
Specification:
Not exceed the specified tolerance on rated resistance in para.4.1.(2).
6.1.2 Temperature characteristic of resistance
Method;
Resistance shall be measured under standard atmospheric conditions.
When the temperature reaches and is maintained at 100 deg C higher than the temperature of standard
atmospheric conditions, resistance shall be measured again. The measurement shall be made after a
period of 30 min, after each specified temperature is reached.
Specification:
Not exceed the specified temperature coefficient of resistance in para.4.1.(3).
6.1.3 Overload
Method;
A d.c. or a.c. r.m.s. voltage of 2.5 times the rated voltage shall be applied for 5 sec, and a check shall be
made to see if arcing or other damage happened. Then the resistor shall be maintained without electrical
load for 30 min after which the resistance shall be measured. However the applied voltage shall not
exceed the maximum overload voltage.
For other procedures, refer to IEC 60115-1, Sub-clause 4.13.
Specification:
Change in resistance : ±(0.5%+0.05Ω)
Without damage by flash over (spark, arcing), burning or breakdown etc.
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
5/14
6.1.4 Insulation resistance
Method;
Place the specimen on the groove of metal
plate so that the edge of metal block
positions almost center of both electrodes,
with the surface of insulation enclosure
located downward or upward and
pressurize the block by a force of 1.0±0.2
N.
The test voltage shall be 100±15Vd.c.,
and maintain this voltage for about 1 min.
The insulation resistance shall then be
measured while applying the voltage.
For other procedures, refer to IEC
60115-1, Sub-clause 4.6.
Measurement point A on metallic block
Insulating plate
Measurement point B
on metallic plate
R 0.5㎜
Specimen
Base material
Presurization by spring
Insulating enclosure surface
Specification;
(1)Between electrodes and insulating enclosure.
(2)Between electrodes and base material.
100MΩ or more
1000MΩ or more
6.1.5 Voltage proof
Method;
The resistor shall be tested as shown in paragraph 6.1.4.
The test voltage shall be a voltage of 200V (a.c. r.m.s.) between both electrode.
The voltage is gradually increased at a rate of about 100 V/s. from almost 0 V to the specified voltage
and maintained as it is for 60s. +10/0s., then gradually decreased to almost 0 V.
For other procedures, refer to IEC 60115-1, Sub-clause 4.7.
Specification;
Change in resistance
:
±(0.5%+0.05Ω)
Without damage by flash over (spark, arcing), burning or breakdown etc.
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
6/14
6.2 Mechanical
6.2.1 Substrate bending test ( Bond strength of the face plating )
Method;
Apply pressure in the direction of the arrow at a rate of about 0.5 mm/s. until bent width reaches 3 mm
and hold for 30 s.
Mounted state
Test state
50
Testing printed circuit board
20
Specimen
Pressurizing jig
Loading
R230
(φ5)
45
±2mm or less
45
Be nding Value 3m m
Support Solder
(Unit:㎜)
Resistance meter
For other procedures, refer to IEC 60115-1, Sub-clause 4.33.
Specification;
Change in resistance
:
±(0.5%+0.05Ω)
Without mechanical damage such as breaks.
6.2.2 Body strength
Method;
A load of 10 N {1.02kgf} using a R0.5 pressure rod shall be applied
to the center in the direction of arrow and held for 10 s.
R0.5
Pressurizing jig
Specimen
Specification;
Change in resistance
:
±(0.5%+0.05Ω)
Without mechanical damage such as breaks.
1/2L
L
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
7/14
6.2.3 Resistance to soldering heat
Method;
(1) Solder bath method
Preheat
100∼110deg C
Temperature
270±5deg C
30 s.
10±1 s.
(2) Reflow soldering method
Peak temperature
260±5deg C
10 sec. or less
Temperature
220deg C over 60 s. max.
The heating apparatus shall be the upper-heated oven and the temperature shall be board surface
temperature.
(3) Soldering iron method
Bit temperature
350±5deg C
Time
3 +1/0 s.
The resistor shall be stored at standard atmospheric conditions for 1 hr after which the measurements shall
be made.
For other procedures, refer to IEC 60115-1, Sub-clause 4.18.
Specification:
Change in resistance : ±(0.5%+0.05Ω)
Without mechanical damage.
Electrical characteristics shall be satisfied.
6.2.4 Solderability
Method;
Temperature of solder
235±5deg C
(Solder alloy: Sn-37Pb)
245±5deg C (Solder alloy: Sn-3Ag-0.5Cu)
Duration of immersion
2±0.5 s.
For other procedures, refer to IEC 60115-1, Sub-clause 4.17.
Specification:
A new uniform coating of solder shall cover minimum of 95% of the surface being immersed.
6.2.5 Solvent resistance
Method;
Immersion cleaning
At normal temperature : 300 sec. Using Isopropyl alcohol.
For other procedures, refer to IEC 60115-1, Sub-clause 4.29.
Specification:
Marking shall be legible.
Without mechanical damage and distinct damage in appearance.
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
8/14
6.3 Endurance
6.3.1 Rapid change of temperature
Method;
The resistor shall be subjected to 5 continuous cycles, each as shown in the figure below.
30 min
1 Minimum operating temperature±3deg C
2∼3 min
2 Standard atmospheric conditions
30 min
3 Maximum operating temperature±2deg C
2∼3 min
4 Standard atmospheric conditions
For other procedures, refer to IEC 60115-1, Sub-clause 4.19.
Specification;
Change in resistance :
±(0.5%+0.05Ω)
Without mechanical damage such as breaks and distinct damage in appearance.
Marking shall be legible.
6.3.2 Endurance (Damp heat with load)
Method;
The specimen shall be placed in the test chamber at a temperature 40±2deg C and a relative humidity
90 to 95 %, and then subjected to a voltage cycle consisting of rated d.c. voltage application of 1 hr 30
min and rest of 30 min repeatedly for 1000 +48/0 hrs.
However the applied voltage shall not exceed the limited element voltage.
For other procedures, refer to IEC 60115-1, Sub-clause 4.24.
Specification;
Change in resistance
:
±(0.5%+0.05Ω)
Without mechanical damage such as breaks and distinct damage in appearance.
Marking shall be legible.
6.3.3 Endurance (rated load)
Method;
The specimen shall be placed in the test chamber at 70±2deg C, and then subjected to a voltage cycle
consisting of rated d.c. voltage application of 1 hr 30 min and rest of 30 min repeatedly for 1000 +48/0
hrs.
However the applied voltage shall not exceed the limited element voltage.
For other procedures, refer to IEC 60115-1, Sub-clause 4.25.
Specification;
Change in resistance
:
±(0.5%+0.05Ω)
Without mechanical damage such as breaks and distinct damage in appearance.
Marking shall be legible.
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
10/14
Test board
Test board A ( For substrate banding, adhesion test, see Fig.4)
Material: Glass fabric base epoxy resin 1.6mm
Copper foil, thickness 0.035 mm
Solder resist coating
Test board B( For another test, see Fig.5)
Material: Glass fabric base epoxy resin 1.6mm
Copper foil, thickness 0.035 mm
Solder resist coating
Mounting method
(1) Mounting method according to solder bath method
Epoxy based adhesive agent shall be applied in the middle between the lands of the test board and the
resistor shall be mounted in such a way that resistor's electrodes will be evenly placed in the land area
and then the adhesive agent shall be hardened. Then a methanol medium of 25% colophony by specific
weight is used as flux (if non-deviant test results are assurable over the counter colophony based flux
may be used) and is soldered by dipping in a molten solder bath of 260±5 deg C and immersed for 3 to
5 s.
(2) Mounting method according to reflow soldering method
About 200 μm of solder cream is applied in the land portion of the test boards and the resistor shall be
mounted in such a way so that the resistor's electrodes will be evenly placed on the land. It is soldered
under the conditions of board surface temperature 240 to 250deg C(peak temperature) for 5 to 10 s. in
an upper-portion heated oven.
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
11/14
7. Packaging
Resistors shall be in Taping.
7.1 Dimensions
7.1.1 Tape packaging dimensions
See Fig.6.
7.1.2 Reel dimensions
See Fig.7
7.2 Materials
Tape :Paper
Reel
:Plastic
7.3 Specification of taping
Refer to clause 7.1 and IEC 60286-3.
7.4 Pieces per reel
1000 pieces per reel or 5000 pieces per reel. When a quantity is 5000 pieces per reel, code “-T5”
shall be added at the end of type designation. See para.2.
7.5 Marking
The label indicated following items shall be marked on single side of the reel.
① Type designation
② Quantity
③ Manufacturing date code
(Month and year are marked. Refer to JIS C 5201-1 Annex 1 Table5.
④ Manufacturer's name
⑤ Country of origin
⑥ Shipping inspection code
⑦ Identification showing lead-free products.
Example of the label
③
④
⑥
RR1220P−102−B
Q.T.Y
1000pcs
INSPECTED r
MADE IN JAPAN
SUSUMU CO.,LTD.
N012501-N:
(BAR CODE)
C:
TITLE:
②
⑤
Q:
(BAR CODE)
⑦
①
(BAR CODE)
-------------------------------------------------------------------------------------------------------------------------------------
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
+0.1
φ1.5 0
Rectangular-hole
a
8.0±0.3
Sprocket-hole
±0.05
3.5
0.75±0.05
1.75±0.1
12/14
b
2.0±0.05
0.80±0.1
4.0±0.1
4.0±0.1
Fig.6 Dimensions of taping
※Pre-emptied holes : 75 holes(or 30 cm) or more.
Code letter
a
b
Unit : mm
Dimension(mm)
1.65±0.2
2.4±0.2
105
50
Label
φ60 0
+1
2±0.5
R1
φ21±0.8
φ13±0.2
9±0.3
13±1.4
0
φ180 - 3
Where : Plastic sheet thickness shall be 0.5mm.
Fig.7. Dimensions of reel
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
13/14
8. Precautions in use
8.1 Storage
(1) Resistor shall be stored in a room where temperature and humidity must be controlled.
( temperature 5 to 35 deg C, humidity 45 to 85 % RH )
However, humidity keep it low, as it is possible.
(2) Resistor shall be stored as direct sunshine doesn't hit on it.
(3) Resistor shall be stored with no moisture, dust, a material that will make solderbility inferior, and a
harmful gas (hydrogen chloride, sulfurous acid gas, and hydrogen sulfide).
(4) Resistor shall be stored with keeping the minimum package unit with uncivilized sealed (Keep the state
of the taping).
8.2 Time limit to storage
(1) The storage time limit of the product is reckoned on the day when the product was shipped by our
company and made within one year.
(2) Confirm solderbility beforehand when you use the one that the time limit was passed.
8.3 Chip mounting
(1) When chip are mounted on the PC board, the protection coat of resistors must not be scratched. If it will
be scratched, it will make performance for moisture inferior.
(2) In case that resistor will be soldered by soldering iron, heating shall be done on the land, and soldering
iron must not hit on the resistor itself.
(3) In case that resin coating or resin seal will be made for a PC board after chip mounting, do washing and
drying it enough before coating or sealing. If ion bear or moisture will be sealed in resin coating, it will
make performance for moisture inferior sometimes.
For resinous use, it is necessary to set up enough the curing conditions. As it get improper for the
condition, change of a resistance value are large and are a case.
(4) According to shape, material, and pressure of clamping in chip mounting machine, there is the case that
crack will be appeared on resistor.
Control a shock energy for clamping resistor under 7×10−4 J.
With a shock energy around clamping that says here, it is suited to a potential energy, in case that iron
block of 25g is dropped naturally to the resistor placed on iron plate for the height of 2.8mm.
(5) The glue to fix a resistor on the PC board around chip mounting, it is needed high insulation resistance
and great performance or moisture. And it is needed that these characteristics are not inferior in using
temperature range and a hot spot temperature to be acting.
8.4 Using and Handling
(1) It is necessary to investigate the performance and reliability enough when using under harsh environment.
Especially, the performance of the product is occasionally damaged when using with the dewy state or
ion material adhered.
(2) It is necessary to protect the edge and protection coat of resistors from mechanical stress.
(3) Handle with care when PC board is divided or fixed on support body, because bending of PC board after
chip mounting will make mechanical stress for resistors.
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0
14/14
(4) Resistors shall be used within rated range shown in specification.
Especially, if voltage more than specified value will be loaded to resistor, there is a case it will make
damage for machine because of temperature rise depending on generation of heat, and increase resistance
value or breaks.
(5) In case that resistor is loaded a rated voltage, it is necessary to confirms temperature of a resistor and to
reduce a load power according to load reduction curve, because a temperature rise of a resistor depends
on influence of heat from mounting density and neighboring element.
(6) Observe Limiting element voltage and maximum overload voltage specified in each specification.
(7) If there is a possibility that a large voltage (pulse voltage, shock voltage) charge to resistor, It is necessary
that operating condition shall be set up before use, because performance of thin film resistor is affected
by a large shock voltage.
8.5 Using and Handling
Refer to EIAJ RCR-2121 -- Electronic Industries Association of Japan technological report "Fixed resistor
directions guideline.”
TITLE:
Specification for
Chip resistor RR1220 series
SUSUMU
CO.,LTD
SPEC.NO:
Rev. No.
RR00-1097
0