规格承认书
Specification for approval
客户名称:
（Customer Name）
产品名称:
（Product Name）
贴片铝电解电容器
SMD Aluminum Electrolytic Capacitor
客户料号：
（Customer part number）
科尼盛料号：
RX100UF50V90RV0105
（KNSCHA number）
型号规格:
（Specifications）
拟 制
(Fiction)
SMD E/C 100UF/50V 6.3*7.7mm RX
SMD E/C 100UF/50V 6.3*7.7mm RX
制 造
(Manufacture)
客
户
(Customer)
Approval
Approval
审 核
(Chief)
核
准
(Approval)
检 验
(Inspect)
东莞市科尼盛电子有限公司
DONG GUAN KNSCHA ELECTRONICS CO.,LTD.
No. 8th floor, A3 building, R&D center (Phase I),
Songshan Lake Intelligent Valley, Liaobu Town, Dongguan City.
TEL:0769-83698067 81035570
FAX: 0769-83861559
Email：sales@knscha.com Website: http://www.knscha.com
审 核
(Chief)
核
准
(Approval)
variation required descriptio
Ver
Before change
A0
First recognition
After change
Date
Handler
2022/5/24
A1
A2
RX SERIES
V-chip
Aluminum
Electrolytic
Capacitors
2
Part Numbering System
Product Code Guide – SMD Type
①
②
③
④
⑤
⑥
⑦
Series
Rated Voltage
Capacitance
Capacitance Tolerance
Terminal Type
Package Type
Case size
RX
1E
471
M
-
CR
G10
RX series
25V
470μF
±20%
Carrier Tape
10φ×10.5L
① Series :
Series is represented by a two-letter code. When the series name only has one letters, use a hyphen, “-“, to fill the second blank.
② Rated Voltage :
Rated voltage in volts (V) is represented by a two-digit code
Voltage (WV)
4
6.3
8
10
16
25
35
50
63
Code
0G
0J
0K
1A
1C
1E
1V
1H
1J
Voltage (WV)
80
100
160
200
250
315
350
400
450
Code
1K
2A
2C
2D
2E
2F
2V
2G
2W
③ Capacitance :
Capacitance in μF is represented by a three-digit code. The first two digits are significant and the third digit indicates the number
of zeros following the significant figure. “R” represents the decimal point for capacitance under 10μF.
Example:
Capacitance
0.1
0.47
1
4.7
10
47
100
470
1,000
4,700
10,000
Part number
0R1
R47
010
4R7
100
470
101
471
102
472
103
④ Capacitance Tolerance :
J = －5 % ∽ +5%
K = －10 % ∽ +10%
M = －20 % ∽ +20%
V = －10 % ∽ +20%
⑤ Terminal Type :
－ = No dummy terminal
G = With dummy terminal
R = Radial
TD = Cardboard Reel
TR = Bulk
⑥ Package Type :
CR = Plastic Reel
⑦ Case size :
The first one digits indicate case diameter and the last two digits indicate case length in mm.
φD
3
4
5
6.3
8
10
12.5
13
16
Code
S
C
D
E
F
G
I
J
K
L
L(mm)
5.0
5.4
5.8
6.5
7.0
7.7
9.0
10.5
11
11.5
Code
05
54
58
65
07
77
09
10
11
1A
L(mm)
12
12.5
13
13.5
16
16.5
18.5
21.5
25
26
Code
12
1B
13
1C
16
1K
1L
2A
25
26
RX SERIES
V-chip
Aluminum
Electrolytic
Capacitors
18
3
Product Dimensions
Unit: mm
Items
Ф
6.3
L
7.7±0.3
A
6.6
B
6.6
C
7.3
W
0.5~0.8
P
2.2±0.2
Performance
Category Temperature Range
-55℃~105℃
Rated Voltage VR
50V
Capacitance CR
100 µF
(120Hz,20℃)
Capacitance Tolerance
± 20 %
(120Hz,20℃)
Surge Voltage VS
57.5 VDC
ILEAK ≤ 50µA
Leakage Current (20℃)
After 2 minutes
≤ 0.1
Tan δ
Impedance max.
Ripple Current (IAC, R / rms)
Low Temperature Characteristics
≤ 0.4Ω
(100KHz,20℃)
350 mA
(100KHz,105℃)
Z(-25℃) / Z(+20℃)
Z(-55℃) / Z(+20℃)
Impedance ratio
at 120 Hz
Ripple Current (A) and Frequency
Multipliers
Frequency (Hz)
Multiplier
Items
Test Time
Cap. Change
Tan δ
Leakage Current
Endurance and Shelf Life Test
(120Hz,20℃)
50,60
0.50
120
0.65
Endurance
2,000 Hrs at 105℃; VR
Within ±30 % of initial value
Less than 200% of specified value
Within specified value
2
3
1K
0.90
10k up
1.00
Shelf Life Test
1,000 Hrs at 105℃
Within ±30 % of initial value
Less than 200% of specified value
Within specified value
Standards
JIS C 5101-1, -18, IEC 60384-4
Remarks
RoHS Compliance, Halogen-free
Marking: Each capacitor shall be marked with the following information.
Marking color: Black
D ≥ 1 2 .5 m m
D ≤1 0 m m
N e g a tive
p o la rity
220
35V
RX
R a te d c a p
N e g a tive
R a te d
p o la rity
vo lta g e
560
35V
RX
S e rie s c o d e
R a te d c a p
R a te d
vo lta g e
S e rie s c o d e
Please refer to “Precautions and Guidelines for Aluminum Electrolytic Capacitors” section in catalog for further details.
RX SERIES
V-chip
Aluminum
Electrolytic
Capacitors
4
Diagram of Dimensions
(※)For 4~6.3Ф is 0.4 max.
Unit:mm
D
±0.5
L
A
±0.2
B
±0.2
C
±0.2
w
P
±0.2
Fig.No.
4
5.8
±0.4
4.3
4.3
5.1
0.5to0.8
1.0
1
5
5.8±0.4
5.3
5.3
6.1
0.5to0.8
1.3
1
6.3
5.8±0.4
6.6
6.6
7.2
0.5to0.8
2.2
1
6.3
±0.4
7.7
6.6
6.6
7.2
0.5to0.8
2.2
1
8
6.5±0.5
8.3
8.3
9.2
0.7to1.2
3.1
1
8
10.5±0.5
8.3
8.3
9.2
0.7to1.2
3.1
1
10
7.7±0.5
10.3
10.3
11.2
0.7to1.2
4.4
1
10
±0.5
10.5
10.3
10.3
11.2
0.7to1.2
4.4
1
10
12.5±0.5
10.3
10.3
11.2
0.7to1.2
4.4
1
12.5
13.5±0.5
13.0
13.0
14.0
1.0to1.4
4.4
2
Part Numbering System
Product Code Guide – SMD Type
1. Carrier Tape
Fig. 1-1
Carrier tape φD≤10
Fig. 1-2
Carrier tape φD≥12.5
Unit:mm
Y±0.3
H±0.2
W±0.2
P±0.1
E±0.1
F±0.1
T±0.2
S±0.1
Fig.No.
ɸ4×5.8
12.0
5.0
5.0
8.0
1.75
5.5
6.5
－
1-1
ɸ5×5.8
12.0
6.0
6.0
12.0
1.75
5.5
6.5
－
1-1
ɸ6.3×5.8
16.0
8.7
8.7
12.0
1.75
7.5
6.5
－
1-1
ɸ6.3×7.7
16.0
8.7
8.7
12.0
1.75
7.5
8.2
－
1-1
ɸ8×6.5
16.0
8.7
8.7
12.0
1.75
7.5
7.2
－
1-1
ɸ8×10.5
24.0
8.7
8.7
16.0
1.75
11.5
11.5
－
1-1
ɸ10×7.7
24.0
10.7
10.7
16.0
1.75
11.5
8.5
－
1-1
ɸ10×10.5
24.0
10.7
10.7
16.0
1.75
11.5
11.5
－
1-1
ɸ10×12.5
24.0
10.7
10.7
16.0
1.75
11.5
13.5
－
1-1
ɸ12.5×13.5
32.0
13.9
13.9
24.0
1.75
14.2
14.5
28.5
1-2
Size(ɸD×L)
RX SERIES
V-chip
Aluminum
Electrolytic
Capacitors
5
2. Reel Package
Fig. 2-1
Fig. 2-2
Pull out direction
Case size
A
D
T
Φ4∼ 5
14
380
3.0
Φ6.3
18
380
3.0
Φ8×6.5
18
380
3.0
Φ8
26
380
3.0
Φ10
26
380
3.0
3. Packing specification
Fig. 3-1 Carrier Tape
Unit:pcs
Case size
8
Φ4
Φ5
Φ6.3
Φ8×6.5
Φ8×10.5
Φ8×11.5∼ 13.5
Φ10×7.7∼ 10.5
Φ10×11.5∼ 13.5
ROHS
N.W:
KGS
G.W:
KGS
MEAS:39.0*39.5*26.0cm
Case size
H
W
L
RX SERIES
V-chip
Φ4∼ 5
260
395
390
Aluminum
Φ6.3
260
395
390
Electrolytic
Φ8×6.5
260
395
390
Capacitors
Φ8
340
395
390
Q’ty / Reel
Reels/Box
Q’ty/Box
2,000
1,000
1,000
1,000
500
400
500
400
12
12
10
10
10
10
10
10
24,000
12,000
10,000
10,000
5,000
4,000
5,000
4,000
Φ10
340
395
390
6
4. Sealing Tape Reel Strength
4.1 Peel angle: 165 to 180℃refered to the surface on which the tape is glued.
4.2 Peel speed: 300mm per minutes
4.3 The peel strength must be 0.1 ~ 0.7N under these conditions.
Cover tape
Peel speed: 300mm/min
Direction of unreeling
Carrier tape
5. Packing Method
5.1 The leader length of the tape shall not be less than 150 mm including 10 or more embossed sections inwhich no parts
are contained.
5.2 the core has an empty section with a length less than 60mm, and the perforation carrier is only suitable for φ D ≤ 5mm.
Empty section
Embossed carrier
Empty section(leader section)
Chipcomponent mounting section
Top cover tape
70 mm or more
-
-
+
+
Pull out direction
150 mm min
Top cover tape
RX SERIES
V-chip
Start of the tape
70 mm min
Aluminum
Electrolytic
Capacitors
7
Endurance characteristic:
No.
Item
Conditions
Specification
Capacitance change
Within ± 10% of initial value
Tanδ
Within specified value
Leakage Current
Within specified value
Physical
No broken and undamaged
Capacitance change
Within ± 30% of initial value
voltage 2,000 +72 / -0 hours at 105℃.
Tanδ
Less than 200% of specified value
2.hen the capacitor shall be subjected to standard atmospheric
Leakage Current
Within specified value
Physical
No broken and undamaged
Capacitance change
Within ± 30% of initial value
And then the capacitor shall
Tanδ
Less than 200% of specified value
be subjected to standard atmospheric conditions for 4 hours,
Leakage Current
Within specified value
after which measurements shall be made.
Physical
No broken and undamaged
Capacitors shall be exposed for 1,000 +48 / -0 hours in an
Capacitance change
Within ± 10% of initial value
atmosphere of 90 ~ 95% R. H. at 60 ±3℃.And then the capacitor
Tanδ
Less than 150% of specified value
Leakage Current
Within specified value
Physical
No broken and undamaged
Capacitance change
Within ± 10% of initial value
Tanδ
Within specified value
Leakage Current
Within specified value
Physical
No broken and undamaged
Capacitance change
Within ± 10% of initial value
Tanδ
Within specified value
Leakage Current
Within specified value
Physical
No broken and undamaged
he capacitor shall be subjected to 1,000 cycles at 15 ~ 35℃.
Capacitance change
Within ± 25% of initial value
Protective series resistor a 1KΩ eachconsisting of a charge
Tanδ
Less than 250% of specified value
period of 30 ± 5 seconds, followed by discharge period of
Leakage Current
Within specified value
approximately 5.5 minutes.
Applying voltage:
Rated Voltage(V)
4
Surge Voltage(V)
4.6
Rated Voltage(V)
160
Surge Voltage(V)
176
Physical
No broken and undamaged
Capacitor is placed in an oven whose temperature follow specific
regulation to change. The specific regulation is " +25℃ (3 min.)
1
→ -55℃ (30 min.) →+25℃ (3 min.) → +105℃ (30 min.) →
Rotational
Temperature
Test
+25℃ (3 min.)", and it is called a cycle. The test totals 10
cycles, and then the capacitor shall be subjected to standard
atmospheric conditions for 4 hours, after which measurements
shall be made.
2
3
4
High
Temperature
Endurance Life
Test
1.Capacitors shall be placed in oven with application of rated
conditions for 4 hours, after which measurements shall be made.
After 1,000 +48 / -0 hours test at 105℃ without rated voltage.
High
Temperature
Unload Life
Test
Humidity Test
shall be subjected to standard atmospheric conditions for 4
hours, afterwhich measurements shall be made.
5
Capacitors are placed at -55 ± 3℃ for 96 ± 4 hours. And
Low
Temperature
Test
then the capacitor shall be subjected to
conditions for 4 hours, after
standard atmospheric
which measurements shall be
made.
1. Fix it at the point 4 mm or less from body. For ones of 12.5 mm
or more in diameter or 25 mm or more length, use separate
fiVTure.
6
Vibration Test
2. Direction and during of vibration:3 orthogonal directions
mutually each for 2 hours (total of 6 hours).
3. Frequency:10 to 55 Hz reciprocation for 1 minute.
4. Total amplitude : 1.5 mm
7
Surge Voltage
Test
RX SERIES
V-chip
Aluminum
6.3
7.3
200
220
Electrolytic
10
10.5
250
275
16
18.4
315
347
Capacitors
25
28.8
350
385
35
40.3
400
440
50
57.5
420
462
63
72.5
450
495
80
92
500
550
100
115
525
578
8
No.
Item
Conditions
Specification
Capacitance change
Within ± 10% of initial value
coating must be more than 95%. .
Tanδ
Within specified value
Dipping speed: 25±2.5mm/s
Leakage Current
Within specified value
Physical
No broken and undamaged
Capacitance change
Within ± 10% of initial value
Tanδ
Within specified value
Leakage Current
Within specified value
Physical
No broken and undamaged
After the lead wire fully immersed in the solder for 2 ± 0.5
8
secs at a temperature of 245 ± 5℃, the solder the solder
Solderability
Test
Dipping time: 3±0.5s
Solder
Heat-Resistance
Test
1. IR Reflow
Temperature(°
C)
t3
t2
t1
Time(sec)
Rated voltage (V)
Case size (φ)
Preheat
Duration
9
Peak
4-50
4-6.3
Temp.(T1~T2,℃)
Time (t1)(Max,secs)
Temp.(T3,℃)
Time (t2)(Max,secs)
Temp.(T4,℃)
Time (t3,secs)
Reflow cycles
217
90
63 up
4-6.3
230
40
260
4-100
8-18
150-180
100
217
217
230
60
60
40
250
250
5
2 or less
160 up
8-18
217
40
245
2.Solder iron method:
Bit temperature: 350 ± 5℃
Application time of soldering Iron: 3 +1/-0 sec
※Please contact our representative if your condition is higher.
※Please ensure that the capacitor became cold enough tothe room temperature (5℃ ~ 35℃) before
the second reflow.
※Consult with us when performing reflow profile in IPC /JEDEC (J-STD-020)
10
1. pplicable to the capacitors with case size is 8×10 mm and larger.
2. Test condition:
(1) AC test: The capacitor shall be connected across an applying 50 or 60 Hz AC which is 0.7 times
ofrated voltage or 250Vrms AC whichever is the lower.
(2) DC test: Applying inverse DC rated voltage with current to the capacitor.
Where case diameter: φD ≦ 12.5 mm: 2 A DC max.
φD＞12.5 mm: 10 A DC max.
Note:
(1) When the pressure relief vent operated, the capacitor shall avoid any danger of fire or explosion ofcapacitor element (terminal
and metal foil etc.) or cover.
(2) When the pressure relief device does not open with the voltage applied over 30 minutes, the test isconsidered to be passed.
Venting Test
RX SERIES
V-chip
Aluminum
Electrolytic
Capacitors
9
No.
Item
Conditions
Recommended pad pattern and size
Unit:mm
Case size
Y
Land Pattern
X
11
Φ4
Φ5
Φ6.3
Φ8
Φ10
Φ12.5
Φ16
Φ18
G
G
1.0
1.4
1.9
3.0
4.0
4.0
6.0
6.0
Land size
Y
2.6
3.0
3.5
4.0
4.0
5.8
6.8
8.0
X
1.8
1.8
1.8
2.5
2.5
3.0
3.5
3.5
:pad
12
Standards
Satisfies Characteristic JIS C 5101-1, -18
Conforming to RoHS and European REACH Regulation
The capacitors do not intentionally contain the banned substances (Cd, Pb, Hg, Cr(Ⅵ), PBB, PBDE, DEHP, BBP, DBP, DIBP) listed in “RoHS directrive :
(EU) 2015/863” and its concentration is less than the threshold values.
Our products are "articles without any intended releas" besed published on 26 May2008. They are not applicable for "Registration" for European REACH
Regulation Article 7 (1).
Precautions and Guidelines for Aluminum Electrolytic Capacitors
1.Guidelines for Circuit Design (General / Application guidelines for using electrolytic capacitors)
Selecting of a right capacitor is a key to a good circuit design.
(1)Polarity
Most of the aluminum electrolytic capacitors are polarized. Therefore, they must be installed with the correct polarity. Usage in the reverse polarity results into
a short-circuit condition that may damage or even explode the capacitor. In addition, it may influence circuit functionality. A bi-polar electrolytic capacitor
should be installed when polarity across a capacitor is unstable / reversible. It should be, however, noted that usage of both polar and bi-polar capacitors are
limited to DC applications. They must NOT be used for AC application.
(2)Operating Voltage
Applied DC voltage must not exceed rated voltage of the capacitor. Applying higher voltage than its rated voltage across a capacitor terminals cause
overheating due to higher leakage currents and capacitor dielectric/insulation deterioration that will ultimately affect a capacitor’s performance. The device,
however, is capable of working under short-time transient voltages such as DC transients and peak AC ripples. Reverse voltages higher than 1 Volt with a
specified temperature limit or AC voltages are not permissible. Overall, using capacitors at recommended operating voltages can prolong its lifespan. Note that
the result of DC voltage overlapped with peak ripple voltage should not exceed rated voltage.
(3)Ripple Current
One of the key functions of any capacitor is removal of the ripple current i.e. the RMS value of AC flowing through a capacitor. But, a ripple current higher than
rated ripple current will drop resultant capacitance, cause undue internal heating and thus reduces life span of the capacitor, In eVTreme cases, internal high
temperature will cause the pressure relief vent to operate while destroying the device. Overall, it is important to note that an electrolytic capacitor must be
used within a permissible range of ripple current. Indicators like temperature coefficient of allowable ripple current are generally sued to determine life
expectancy of the capacitor, but to avoid related complex calculations and for the sake of simplicity, we haven’t provided temperature coefficient in the
catalogue. But it offers key indicators like maximum operating temperature for calculation of life expectancy at a given temperature.
RX SERIES
V-chip
Aluminum
Electrolytic
Capacitors
10
(4)Operating Temperature
Capacitors should be used within a permissible range of operating temperatures. Using capacitor at a higher temperature than maximum rated temperature will
considerably shorten its life. In the worst-case scenario, high temperature can cause pressure relief vent to operate and the device will get destroyed. Using
capacitors at an ambient room temperature assure their longer life.
(5)Leakage Current
Leakage current flows through a capacitor when DC voltage is applied across it. Leakage current varies with changes in ambient temperature and applied DC
voltage level and its time of application. Overvoltage situation, presence of moisture, and thermal stresses, especially occurring during the soldering process
can enhance leakage current. Initial leakage current is usually higher and does not decrease until voltage is applied for a certain period of time. It is
recommended to keep initial leakage current within specified levels.
(6)Charge and Discharge
Regular electrolytic capacitors are not suitable for rapid charging/discharging circuits. Such usage may either cause reduction in overall capacitance or damage
due to overheating. KNSCHA provides special assistance for selecting appropriate capacitors for rapid charging/discharging circuits.
(7)Surge Voltage
The Surge voltage rating is referred as the maximum DC overvoltage that may be applied to an electrolytic capacitor for a short time interval of 30 seconds at
infrequent at infrequent time intervals not exceeding 5.5minutes with a limiting resistance of 1kΩ. Unless otherwise described on the catalogue or product
specifications, please do not apply a voltage exceeding the capacitor’s voltage rating. The rated surge voltages corresponding to rated voltages of electrolytic
capacitors are presented as follows:
Rated Voltage(V)
Surge Voltage(V)
Rated Voltage(V)
Surge Voltage(V)
4
4.6
160
176
6.3
7.3
200
220
10
10.5
250
275
16
18.4
315
347
25
28.8
350
385
35
40.3
400
440
50
57.5
420
462
63
72.5
450
495
80
92
500
550
100
115
525
578
(8)Surge Voltage
The capacitor shall NOT be exposed to:
(a)Fluids including water, saltwater spray, oil, fumes, highly humid or condensed climates, etc.
(b)Ambient conditions containing hazardous gases/fumes like hydrogen sulfide, sulfurous acid, nitrous acid, chlorine or bromine gas, ammonia, tec.
(c)Exposed to ozone, ultraviolet rays and radiation.
(d)Severe vibrations or physical shocks that exceeds the specifications mentioned in this catalogue.
(9)Circuit Design Consideration
(a)Please ensure whether application, operating and mounting conditions satisfy the conditions specified in the catalog before installation of a capacitor.
Please consult KNSCHA, if any of the conditions are beyond the conditions specified in the catalog.
(b)Heat-generating components or heat sinks should not be placed closer to Aluminum electrolytic capacitors on the PCB to avoid their premature failure. A
cooling system is recommended to improve their reliable working.
(c)Electrical characteristics and performance of aluminum electrolytic capacitors are affected by variation of applied voltage, ripple current, ripple frequency
and operating temperature. Therefore, these parameters shall not exceed specified values in the catalog.
(d)Aluminum capacitors may be connected in the parallel fashion for increasing total capacitance and/or for achieving higher ripple current capability. But,
such design may cause unequal current flow through each of the capacitors due to differences in their impedances.
(e)When two or more capacitors are connected in series, voltage across each capacitor may differ and fall below the applied voltage. A resistor should be
placed across each capacitor so as to match applied voltage with voltage across a capacitor.
(f)Please consult KNSCHA while selecting a capacitor for high- frequency switching circuit or a circuit that undergoes rapid charging/ discharging.
(g)Standard outer sleeve of the capacitor is not a perfect electrical insulator therefore is unsuitable for the applications that requires perfect electrical
insulation. Please consult KNSCHA, if your application requires perfect electrical insulation.
(h)Tilting or twisting capacitor body is not recommended once it is soldered to the PCB.
2.Caution for Assembling Capacitors
(1)Mounting
(a)Aluminum electrolytic capacitors are not recommended to reuse in other circuits once they are mounted and powered in a circuit.
(b)Aluminum electrolytic capacitors may hold static charge between its anode and cathode, which is recommended to be discharged through a 1kΩ resistor
before re-use.
(c)A long storage of capacitors may result into its insulation deterioration. This can lead to a high leakage current when voltage is applied that may damage the
capacitor. Capacitors following a long storage period must undergo voltage treatment/re-forming.
Capacitors are charged by applying rated DC voltage through a resistor of 1kΩ in series at least for an hour. It is recommended to increase applied voltage
gradually using a voltage regulator unit once capacitors are assembled on the board. The charging should be followed by discharging through a 1KΩ resistor.
(d)Please check capacitor rated voltage before mounting.
(e)Please check capacitor polarity before mounting.
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(f)Please don’t drop capacitor on the floor / hard object.
(g)Please don’t deform the capacitor during installation.
(h)Please confirm whether the lead spacing of the capacitors match with its pad spacing / footprint on PCB prior to installation.
(i)Please avoid excessive mechanical shocks to capacitor during the auto-insertion process, inspection or centering operations.
Please don’t place any wiring or circuit over the capacitor’s pressure relief vent. The pressure relief vent may fail to open if adequate clearance space is not
provided. Following table shows minimum clearance space required for different case diameters.
Case Diameter
φ6.3 ~ φ16
φ18 ~ φ35
φ40 or above
Clearance(mm)
2 mm
3 mm
5 mm
(2)Soldering
(a)Please confirm that soldering conditions, especially temperature and contact time are within our specifications. Dip or flow soldering temperature should be
limited at 260 ± 5 ℃ for 10 ± 1 sec while manual soldering using soldering iron should be limited at 350 ± 5℃ for 3 +1/-0 seconds. Please do not dip
capacitor body into molten solder. A capacitor’s life will be negatively affected if these conditions are violated.
(b)Storage of capacitors in high humidity conditions is likely to affect the solder-ability of lead wires and terminals.
(c)Reflow soldering should NOLY be used for SMD type capacitors. The temperature and duration shall not exceed the specified temperature and duration in
the specification. If the temperature or duration is higher than the value specified, please consult KNSCHA before usage.
(d)Standard aluminum electrolytic capacitors are not designed to withstand multiple reflow processes. Please consult KNSCHA if repeated reflowing is
unavoidable.
(e)Incorrect mounting on PCB with improper eVTernal strength applied on its lead wires or capacitor body after soldering may damage a capacitor’s internal
structure, cause short circuit, or lead to high leakage current issues. Do not bend or twist the capacitor body after soldering. Referring to the drawings below
only case (i) is recommended.
(i)Correct soldering
(ii)Hole-to-hole spacing on PCB differs from the lead space of lead wires.
(iii)Lead wires are bent after soldering.
(iv)Capacitor body doesn’t stand vertical on PCB after soldering.
(3)Cleaning Circuit Boards after Soldering
(a)Following chemicals are not recommended for cleaning: Solvent containing halogen ions, Alkaline solvent, Xylene, Acetone, Terpene, petro-based solvent.
(b)Recommended cleaning conditions:
Fatty-alcohol - Pine Alpha ST-100S, Clean Through-750H and IPA (isopropyl alcohol) are examples of the most acceptable cleaning agents. Temperature of
the cleaning agent must not exceed 60℃. Flux content in the cleaning agents should be limited to 2 Wt. %. Overall length of cleaning process (e.g., immersion,
ultrasonic or other) shall be within 5 minutes (5 ~ 7mm height within 3 minutes). CFC substitute cleaning agents such as AK225AES can also be used for
cleaning. In this case, its temperature shall not exceed 40 C and cleaning process (e.g., immersion, ultrasonic or other) shall be completed within 2 ~ 3 minutes.
After cleaning capacitors should be dried with hot air for at least 10 minutes along with the PCB. Temperature of hot air shall not exceed maximum category
temperature of
the capacitor. Insufficient drying may cause appearance defects, sleeve shrinkage, and bottom-plate bulging. However, usage of this CFC substitute must
completely regulated for protection of environment.
3.Maintenance Inspection
Periodical inspection of aluminum capacitors is absolutely necessary especially when they are used with industrial equipment. The following items should be
checked:
(1)Appearance: Bloated, vent operated, leaked, etc.
(2)Electrical characteristic: Capacitance, Tanδ, leakage current, and other specified items listed in specification.
KNSCHA recommend replacing the capacitors if any of the abovementioned items fail to meet specifications.
4.Storage
(1)The most suitable conditions for aluminum capacitor storage are 5 ℃ ~ 35℃ and indoor relative humidity less than 75%. High temperature and/or humidity
storage is detrimental to the capacitors.
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(2)Capacitors shall not be stored in wet or damp atmospheres containing water, brine, fumes or oil.
(3)Capacitors storage area shall neither be exposed to hazardous gases such as hydrogen sulfide, sulfurous acid, nitrous acid, chlorine, ammonium, etc. nor to
acidic or alkaline solutions.
(4)Capacitors shall not be exposed to ozone, ultraviolet rays or radiation.
5.Estimation of life time
T0max - Tr max
Lr =L0×2
10
Lr : Estimated lifetime (hours)
L0: Base lifetime specified at maximum operating temperature with applied the DC voltage and the ripple current (hours)
T0 max: The core temperature that rated ripple current applied at maximum operating temperature.
Tr max: The core temperature that applied actual ripple current at ambient temperature.
6.Maintenance Inspection
Please consult with a local industrial waste disposal specialist when disposing of aluminum electrolytic capacitors.
7.Environmental Consideration
KNSCHA already have received ISO 14000 certificate. Cadmium (Cd), Lead (Pb), Mercury (Hg), Hexavalent Chromium (Cr+6), PBB, PBDE, DEHP, BBP, DBP and
DIBP have never been using in capacitor. If you need “Halogen-free” products, please consult with us.
For further details, please refer to the following industrial standards:
IEC 60384-4-
Fixed capacitors for use in electronic equipment – Part 4: Sectional specification – Aluminum electrolytic capacitors with solid (MnO2) and
non-solid electrolyte (Established in January 1995, Revised in March 2007)
EIAJ RCR-2367B- Guideline of notabilia for fixed aluminum electrolytic capacitors for use in electronic equipment [Technical Standardization Committee on
Passive Components (Established in March 1995, Revised in March 2002)].
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