GENERAL RESISTORS INDEX
CR Series - Carbon Resistors
PGM Series - Light Dependent Resistor (LDR), Photo Resistors (CDS)
FRN, FKN, FSQ Series - Metal Film, Wirewound, Cement Fusible Resistors
SQP, SQM, SQT, SQH, SQZ Series - Non-Corrosive Cement Resistors
BWW Series - High Precision Wirewound Axial Moulded Resistors
KNP-VE Series - Vitreous Enamel Coated Wirewound Resistors
KNP, KNPN Series - Wirewound Low-Inductance Resistors
ZO, JW Series - Zero Ohm and Jumper Wire Resistors
CCR Series - Carbon Composition Resistors
FKU, FRU Series - Cement Resistors with Thermal Cut-offs
MF Series - Metal Film Precision Resistors
RSS, RSN Series - Metal Oxide Resistors
RCR Series - Anti-Surge Resistors
RESISTORS - TECHNICAL STANDARDS AND USAGE METHODS
Resistor Precaution Usage
Resistor Forming and Dimensions
Glossary - Terminology of Resistors
Marking System - Resistor Color Code
CR Series are the earliest and a still popular type made by
breaking down hydrocar bon gases at high temperature in a vacuum
to form a carbonic deposit on the surface of a cylindrical substrate.
Trimming to value is accomplished by the cutting of spiral grooves.
The material is painted on the substrate in
a spiral pattern and cured at a moderately elevated temperature.
Token offers competitive prices and widely used in the electronics,
and consumer electrical industries.
Type RD
Power Rating
Dimension (mm)
Maximum Working Voltage
Maximum Overload Voltage
Resistance Tolerance
RD
RDS
L
D
H
d±0.05
± 2%(G)
± 5%(J)
CR-12
1/8 W
.
3.2±0.2
1.5±0.2
26±1
0.40~0.45
200
400
10Ω-470K
1Ω-4.7M
CR-16
1/6 W
1/4 W
3.2±0.2
1.5±0.2
26±1
0.40~0.45
200
400
1Ω-10M
0.5Ω-22M
CR-25
1/4 W
1/2 W
6.2±0.5
2.3±0.3
26±1
0.40~0.50
250
500
1Ω-10M
0.5Ω-22M
CR-33
1/3 W
1/2 W
8.5±0.5
2.8±0.3
26±1
0.50~0.55
250
500
1Ω-10M
0.5Ω-22M
CR-50
1/2 W
1 W
9.0±0.5
3.0±0.5
26±1
0.50~0.55
350
700
1Ω-10M
0.5Ω-22M
CR-100
1 W
2 W
11±1.0
4.0±0.5
35±3
0.75~0.80
500
1000
1Ω-10M
0.5Ω-22M
CR-200
2 W
3 W
15±1.0
5.0±0.5
35±3
0.75~0.80
500
1000
1Ω-10M
0.5Ω-22M
CR-300
3 W
5 W
17±1.0
6.0±0.5
35±3
0.75~0.80
500
1000
1Ω-10M
0.5Ω-22M
Test Items
Condition
Spec
Short Time Over Load
2.5 Times of rated voltage for 5sec.
± 1%
Load Life
70 °C on-off cycle 1,000hrs.
± 5%
Moisture-Proof Load Life
40 °C 95% RH on-off cycle 1,000hrs
± 5%
Soldering After Resistance
350 °C for 3sec.
± 0.5%
Temperature Cycle
-30 °C~85 °C 5cycles
± 2%
Resistance Temperature Coefficient
1Ω~22KΩ 22KΩ~510KΩ 510KΩ~1MΩ 1MΩ~2.2MΩ 2.2MΩ~5.1MΩ
± 300PPM / °C ± 450PPM / °C ± 800PPM / °C ± 1000PPM / °C ± 1400PPM / °C
CR-12
0.125W
470KR
J
TB
Product type
Rated Power (W)
Resistance Value (Ω)
Resistance Tolerance
Packaging
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