DISCHARGE PATH RESISTOR
EU
RoHS
RCR
Coat-Insulated Fixed Anti Surge Resistors
■Construction
C
①
②
③
④
⑤
⑥
t
L
⑦
t
D
⑤ Electrode cap
⑥ Lead wire
⑦ Resistive film
Coating color：Blue gray
※1
Marking：Excluding RCR16…4 line color codes＋5th color code
RCR16…4 line color codes
※1 RCR50＋, RCR50EN
（1MΩ∼12MΩ）
：Green, RCR60：White, Others：Black
Please confirm contents on technical specifications about the color code of F grade product.
① Marking
② Flame retardant coating
③ Trimming line
④ Ceramic core
■Dimensions
Type
RCR16
RCR25
RCR25EN
RCR50
（＋）
RCR50EN
RCR60
RCR75
RCR100
L
3.2±0.2
6.3±0.5
9.5±1.0
9.5
＋1.0
.
－0.2
12.0±1.0
15.5±1.0
C Max.
3.4
7.1
—
—
—
—
Dimensions（mm）
t Max.
D
—
1.7
＋0.2
.
－0.1
—
3.0
3.0
3.0
3.0
2.5±0.5
3.5±0.4
3.5±0.4
4.0±0.5
6.0
＋1.0
.
－0.4
d（Nominal）
0.45
0.60
0.70
0.70
0.80
0.80
20min.
ℓ
※2
Weight（g）
（1000pcs）
150
240
520
520
800
1400
■Features
・
Excellent anti-surge characteristics.
・
Stable characteristics of moisture resistance up to high
resistance range.
・
RCR50＋(1MΩ∼12MΩ), RCR50EN (1MΩ∼12MΩ) and
RCR60 (1MΩ∼12MΩ) are conductive-path and Discharge-
path Resistors recognized by UL1676 and c-UL (CSA-
C22.2 No.1-M94).
・
RCR25EN (100kΩ∼33MΩ), RCR50EN (100kΩ∼33MΩ)
and RCR60 (100kΩ∼56MΩ) is approved by EN62368-1
G.10 safety.
・
Products meet EU-RoHS requirement. EU-RoHS regulation
is not intended for Pb-glass contained in resistor element.
・
Automatic mounting machine is applicable by surface mounted
device style lead forming.
※2 Lead length changes depending on taping and forming type.
■Type Designation
Example
RCR
Product
Code
50
Power
Rating
16:0.25W
25:0.25W
50:0.5W
60:1W
75:2W
100:3W
EN
C
T52
φd
A
106
J
Resistance
Tolerance
F:±1％
J:±5％
Safty Approvals Terminal Taping &
Marking
Surface Material Forming
C:SnCu See table
＋：RCR50＋
EN：RCR25EN,
below
RCR50EN
Nil：Others
■Applications
Packaging
Nominal
Forming
Resistance
A:AMMO
F:4 digits
R:REEL
J:3 digits
TEB・TEG:Plastic
embossed (N forming)
Nil:BOX
・
TV
・
Copy machines
・
LBP
・
Switching power supplies
・
AC adapters
Contact us when you have control request for environmental hazardous material other than the substance specified by EU-RoHS.
For further information on taping and forming, please refer to APPENDIX C on the back pages.
■Taping & Forming Matrix
Type
RCR16
RCR25
RCR25EN
RCR50
RCR50＋
RCR50EN
RCR60
RCR75
RCR100
T26
○
○
○
—
—
—
—
—
—
Axial Taping
L Forming
T52 T521 T631 L15A L20A L25A
○
—
—
—
—
—
○
—
—
—
—
—
○
—
—
—
—
—
○
—
—
○
—
—
○
—
—
○
—
—
○
—
—
○
—
—
○
—
—
○
—
—
○
—
—
○
—
—
—
○
○
—
○
○
M Forming
N Forming
M5
M10 M15 M20 N17 N20
M5F
—
—
—
—
—
— M10F —
—
—
—
— M10F —
—
—
—
—
— M15F —
—
—
—
— M15F —
—
—
—
— M15F —
—
—
—
— M15F —
—
—
—
—
—
—
○
—
—
—
— M20E —
○
High Voltage Type Resistors
■Approvals Awarded
UL1676 & c-UL
EN62368-1
（CSA-C22.2 No.1-M94）
G.10
RCR25EN
－
○
RCR50+
－
RCR50EN
○
（1MΩ½12MΩ）
○
RCR60
○
Type
■Ratings
Type
RCR16
RCR25
RCR25EN
RCR50
RCR50＋
RCR50EN
RCR60
RCR75
RCR100
0.5W
1W
2W
3W
Power
Rating
0.25W
Resistance Range
（Ω）
F:±1%
（E24・E96） J:±5%
（E24）
100k½5.1M 100k½5.1M
100k½9.1M
3.3Ω½910k
1M½9.1M
100k½9.1M
100k½9.1M
100k½9.1M
100k½9.1M
100k½33M
3.3½910k
13M½33M
1M½12M
100k½33M
100k½56M
100k½100M
100k½51M
Max. Working
Voltage
500V
D.C. 1600V
A.C. 1150V
2000V
4000V
5000V
5000V
Max. Overload
Voltage
1000V
D.C. 2000V
A.C. 1500V
2500V
5000V
5000V
5000V
Dielectric Withstanding
Voltage
300V
700V
Taping & Q'ty/AMMO
（pcs）
T26
T52
T521
T631
5000
3000
—
—
2000
2000
—
—
700V
700V
700V
1000V
—
—
—
—
2000
2000
1000
—
—
—
—
500
—
—
—
1000
Rated Ambient Temperature：＋70℃
Operating Temperature Range：−55℃∼＋155℃
Rated voltage＝
√￣￣￣￣￣￣￣￣￣￣￣￣
or Max. working voltage, whichever is lower.
Power Rating×Resistance value
150
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
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■Derating Curve
Percent rated power ％）
（
100
80
60
40
20
0
-80 -60 -40 -20
-55
60 80 100 120 140 160
70
155
Ambient temperature
（℃）
0
20
40
■Notice on Surge Load
Surge withstanding load voltage for the resistors cannot be guarantee when
the undermentioned 4 items get to a remarkable overload in comparison with
the conditions shown by surge withstanding voltage in Anti-surge
characteristics. You are kind by requested to contact to us in advance if such a
case is anticipated.
（1）Peak voltage to be applied
（2）Pulse width
（3）Conditions of protecting insulation around the resistor
（4）Situation of proximity conductivity object
As the fig. below for instance when a metal wire is placed at less than 5mm
away from the resistor body, there is such a case that causes an electric
discharge by a surge load 10kV and then destroys the outer coating.
10kV
For resistors operated at an ambient temperature of 70℃ or higher, the power shall be derated
in accordance with the above derating curve.
Discharge
About 5mm
Metal wire
■Performance
Test Items
Resistance
Performance Requirements
ΔR±
（％＋0.05Ω）
Limit
Within specified
Type
RCR16
RCR25
RCR25EN
T.C.R.
±200×10
－6
/K
±350×10
－6
/K
±500×10
－6
/K
±350×10
－6
/K
±350×10
－6
/K
±350×10
－6
/K
±350×10
－6
/K
±200×10
－6
/K
Resistance Range
100kΩ½5.1MΩ
100kΩ½33MΩ
3.3Ω½91kΩ
100kΩ½33MΩ
100kΩ½33MΩ
100kΩ½56MΩ
100kΩ½100MΩ
100kΩ½51MΩ
Test Methods
Typical
—
Measuring points are at 10mm±1mm from the end cap.
T.C.R.
RCR50（＋）
RCR50EN
RCR60
RCR75
RCR100
—
＋25℃/＋125℃
Overload
（Short time）
Resistance to soldering heat
Terminal strength
Rapid change of temperature
Moisture resistance
Endurance at 70℃
Resistance to solvent
1
1
No lead-coming off and loose terminals
1
5
5
No abnormality in appearance.
Marking shall be easily legible.
0.5
0.5
—
0.5
2.5
2.5
—
Rated voltage×2.5 or Max. overload vol., whichever is lower, for 5s
260℃±5℃, 10s±1s or 350℃±10℃, 3.5s±0.5s
Twist 360°, 5 times
－55℃
（30min.）
/＋155℃
（30min.）5 cycles
40℃±2℃, 90%½95%RH, 1000h
1.5h ON/0.5h OFF cycle
RCR16, 25, 50
（＋） 60 : W RCR75, 100 : W×0.1
,
70℃±2℃, 1000h, Rv
1.5h ON/0.5h OFF cycle
Ultrasonic washing with Isopropyl alcohol for 2 min.
Power : 0.3W/cm
2
, f : 28kHz, Temp : 35℃±5℃
Discharge test : 2kV½10kV 0.01μF capacitor discharge pulse
10 times. (1pulse/5s max.)
Type
RCR16 RCR25・RCR25EN
RCR50・RCR50＋
3.3Ω½6.2Ω ：10kV
Applied
voltage
6.8Ω½10Ω ：7kV
2kV
3kV
11Ω½9.1kΩ：5kV
10kΩ½91kΩ：7kV
100kΩ½33MΩ
：10kV
10kV
10kV
10kV
10kV
RCR50EN RCR60 RCR75 RCR100
High Voltage Type Resistors
High Voltage Type Resistors
Anti-surge characteristics
10
2.5
EN60065 test
（RCR50EN, RCR60 Only）
20
—
Discharge test : 10kV 1000pF capacitor discharge pulse 50 times.
(1pulse/5s max.)
■Precautions for Use
・
Be careful to handle these resistors because outer coatings are comparatively weak to outer shock due to flameproof special coats. Please wash them to a
minimum. No external force is given to the coating films until they are well dried because the coating films become weaker right after washing. The original
strength will be returned after they are dried, so please pay attention not to apply any external force onto the coating film of resistors for 20 minutes after
drying. Especially no PC boards shall be piled up.
・
Do not touch the resistors with high-resistance value by hand to prevent surface-leakage current.
・
Consult with us when there are electric conductors near to because it may cause corona and short-circuit by discharge.
・
Please do not apply resistors under such bad conditions as high temperature, high humidity, and foul adhesion, or with resin molding, because it may cause the
change of resistance value.
・
The resistance film of less than RCR50 100kΩ is different. Therefore, the characteristic might decrease when it is polluted by a remarkable moisture
environment and the ionic material so inquire of our company beforehand, please.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Contact our sales representatives before you use our products for applications including automotives, medical equipment and aerospace equipment.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Malfunction or failure of the products in such applications may cause loss of human life or serious damage.
Oct. 2020
Oct. 2021
www.koaglobal.com
151
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