172 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/29/18
RCR
anti-surge power type leaded resistor
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 discharge 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 EN6234-68-1 G.10 safety
• Products with lead-free terminations meet EU RoHS
requirements. EU RoHS regulation is not intended for
Pb-glass contained in electrode, resistor element and glass.
• Surface mount style “N” forming is suitable for automatic mounting
RCR16: T26, T52
RCR25, RCR25EN: T26,
T52
RCR50(+, EN): T52
RCR60: T52
RCR75: T52
RCR100: T521, T631
L, M, N Forming
ordering information
2 significant
figures + 1
multiplier for ±5%
3 significant
figures + 1
multiplier for ±1%
16: 0.25W
25: 0.25W
50: 0.5W
60: 1W
75: 2W
100: 3W
C:SnCu
RCR F: ±1%
J: ±5%
RCR 50 C
Termination
Material
Type Power
Rating RCR50+: +
RCR25EN,
RCR50EN: EN
Blank: Others
EN
Safety Appr.
Marking Nominal
Resistance ToleranceTaping and Forming
T52 105
A: Ammo
R: Reel
TEB: Plastic
embossed:
N forming
Packaging
A J
For further information on packaging, please refer to Appendix C.
dimensions
and construction
Ceramic Core
d
D
Marking Resistive
Film
Flame Retardant Coating
Trimming Line
End
Cap Lead
Wire
L l
t t
C
L C (max.)
RCR16
.126±.008
(3.2±0.2) .134
(3.4)
.28
(7.1)
.018
(0.45)
—
—
.098±.02
(2.5±0.5) .024
(0.6)
.787 Min.
(20.0 Min.)
.028
(0.7)
.138±.016
(3.5±0.4)
.118
(3.0)
—
.248±.02
(6.3±0.5)
.374±.039
(9.5±1.0)
RCR25
RCR25EN
RCR50(+)
RCR50EN
RCR60
Type t (max.) D d (nom.) l*
Dimensions inches (mm)
—
.118
(3.0) .157±.02
(4.0±0.5) .031
(0.8)
.472±.039
(12±1.0)
RCR75
.067 +.008
-.004
(1.7 +0.2)
-0.1
RCR100
.610±.039
(15.5±1.0)
—
.031
(0.8)
.118
(3.0)
.236 +.039
-.016
(6.0 +1.0)
-0.4
.374 +.039
-.004
(9.5 +1.0)
-0.2
Absolute
Maximum
Working
Voltage
Resistance
Range
E-24, E-96
(F±1%)
Resistance
Range
E-24
(J±5%)
Part
Designation
Operating
Temperature
Range
Power
Rating
@ 70°C
applications and ratings
Minimum
Dielectric
Withstanding
Voltage
RCR16
RCR25
RCR25EN
RCR60
RCR50+
RCR50
0.25W
0.5W
1.0W
300V
700V
1000V
1000V500V
DC 1600V
AC 1150V DC 2000V
AC 1500V
100kΩ - 5.1MΩ100kΩ - 5.1MΩ
100kΩ - 33MΩ
3.3Ω - 910kΩ
13MΩ - 33MΩ2000V
4000V
2.0W 5000V 5000V
2500V
1MΩ - 12MΩ
100kΩ - 56MΩ
RCR100
RCR75
3.0W 100kΩ - 100MΩ
100kΩ - 51MΩ
100kΩ - 9.1MΩ
3.3Ω - 910kΩ
1MΩ - 9.1MΩ
RCR50EN 100kΩ - 33MΩ100kΩ - 9.1MΩ
100kΩ - 9.1MΩ
100kΩ - 9.1MΩ
100kΩ - 9.1MΩ
Absolute
Maximum
Overload
Voltage
-55°C to +155°C
EU
* Lead length changes depending on taping and forming.
leaded
resistors
RCR
anti-surge power type leaded resistor
Derating Curve
environmental applications
% Rated Power
100
80
60
40
20
-60 -40 04060 80 100 160
70
20
Ambient Temperature
(°C)
0
-55 120 155
-20 140
Notice of Surge Load
Surge withstanding load voltage for the resistors cannot be guaranteed when the
undermentioned 4 items get to a remarkable overload in comparison with the
conditions shown by surge withstanding voltage in Anti-surge characteristics.
Please contact KOA 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
For example: In the figure, a metal wire is placed
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.
Discharge
10kV
About 5mm
Metal Wire
Resistance Measuring points are 10mm ± 1mm from the end capWithin regulated tolerance
—
Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second or 350°C ± 10°C,
3.5 seconds ± 0.5 seconds
1%
0.5%
Terminal Strength Twist 360°, 5 timesNo mechanical damage
—
Rapid Change of Temperature -55°C (30 minutes)/+155°C (30 minutes), 5 cycles1%
0.5%
Endurance @ 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle5%
2.5%
Surge Withstanding 10%
2.5%
Moisture Resistance
40°C ± 2°C, 90-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle
RCR16, 25, 50 (+), 60: W; RCR75, 100: Wx0.1
5%
2.5%
EN60065 Test
(RCR50EN, RCR60 only) Discharge test: 10kV, 1000pF capacitor discharge pulse,
50 times (1 pulse/5 seconds maximum)
20%
—
Resistance to Solvent Isopropyl alcohol with ultrasonic washing, 2 minutes
Power: 0.3W/cm2, f: 28kHz, Temperature: 35°C ± 5°C
Discharge test: 2kV - 10kV, 0.01µF capacitor discharge
pulse, 10 times (1 pulse/5 seconds maximum)
No visible damage to protective coating
and marking
—
Overload Rated voltage x 2.5 or maximum overload voltage
for 5 seconds, whichever is less
1%
0.5%
T.C.R. +25°C/+125°C
—
Performance Characteristics
Parameter Requirement ∆R ±(% + 0.05Ω)
Limit Typical Test Method
100kΩ - 5.1MΩ
Resistance Range
T.C.R.
±200ppm/°C 100kΩ - 33MΩ±350ppm/°C 3.3Ω - 91kΩ±500ppm/°C 100kΩ - 33MΩ±350ppm/°C
100kΩ - 56MΩ±350ppm/°C
RCR50 (+)
RCR60
RCR75
RCR16
RCR25 (EN)
Type
100kΩ - 33MΩ±350ppm/°C RCR50EN
100kΩ - 100MΩ±350ppm/°C 100KΩ - 51MΩ±200ppm/°C RCR100
RCR50EN,
RCR60, RCR75,
RCR100
10kV
RCR25
RCR25EN
3kV
RCR16Type
Applied
Voltage 2kV
RCR50, RCR50+
3.3Ω - 6.2Ω: 10kV
6.8Ω - 10Ω: 7kV
11Ω - 9.1kΩ: 5kV
10kΩ - 91kΩ: 7kV
100kΩ - 33MΩ: 10kV
173
KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com
Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 10/29/18
For resistors operated at an ambient temperature
of 70°C or above, a power rating shall be derated
in accordance with the above derating curve. Test a
—Test b
UL1676 & c-UL
(CSA-C22.2 No.1-M94)
RCR25EN
m(1MΩ~12MΩ)
RCR50+
RCR50EN
RCR60
—
—
m
m
m
—
m
m
Type
Approvals Awarded EN60065 14.1
m
—
m
m
EN62368-1
G.10
leaded
resistors
