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     AXIAL TYPE RESISTOR

Correctohm-CM Series
Metal Film Resistor
Coating insulation


 
Last update: 2025.06.18. [Electrical-spec] [Resistance value] [Note] [Dimensions] [Model-number] EU-RoHS


Information
 


Electrical specifications
[ Rating ]
Product type Rated power [W]
70 degs.C		 Highest usable voltage [V] Extreme highest
overload voltage [V]
 Applicable temperature
range [degs.C]
CM1/4 0.25 250 500 -55 ~ 155
CM1/2 0.5 350 700
CM1 1.0 500 1000
CM2 2.0 500 1000

[ Performance ]
  Performance test contents Performance of Correctohm-CM JIS C 5201-1
Electric Resistance value Rate value 6.1
T.C.R Rate value 6.2
Overload (short time) ±(0.5%+0.05ohm) 8.1
Insulation resistance 10,000Mohm Min. 12.1
Voltage proof ±(0.1%+0.05ohm) 12.2
Mechanic Terminal strength ±(0.25%+0.05ohm) 9.5
Vibration resistance ±(0.25%+0.05ohm) 9.11
Solder dip resistance ±(0.25%+0.05ohm) 11.2
Solder ability 95% Min. 11.1
Solvent resistance Appearance not having a problem. 11.3
Weatherability Low temperature test ±(0.25%+0.05ohm) 10.2
Temperature cycling test ±(0.5%+0.05ohm) 10.1
Humidity resistance ±(1.0%+0.05ohm) 10.4
Rated load (70degs.C) ±(1.0%+0.05ohm) 7.1


Production resistance value range
[ Standard ]
Product type Resistance
tolerance		 Production resistance value range [ohm]
C: ±50 ppm/degs.C K: ±100 ppm/degs.C
CM1/4 D: ±0.5 % 10.0 ~ 1M 10.0 ~ 1M
F: ±1 % 10.0 ~ 1M 10.0 ~ 1M
CM1/2 D: ±0.5 % 10.0 ~ 1M 10.0 ~ 1M
F: ±1 % 10.0 ~ 1M 10.0 ~ 1M
CM1 D: ±0.5 % 10.0 ~ 1M 10.0 ~ 1M
F: ±1 % 10.0 ~ 1M 10.0 ~ 1M
CM2 D: ±0.5 % 10.0 ~ 1M 10.0 ~ 1M
F: ±1 % 10.0 ~ 1M 10.0 ~ 1M


General specifications
Storage temperature range -10 to +50 degrees C
Relative humidity 85%RH (No condensation)

Note
* Use to the apparatus which may cause an in-vehicle apparatus (including the train),
   medical equipment, an aviation apparatus, an apparatus about human life including the ship apparatus and the serious damage;
   when is done, please talk by all means.

Dimensions
Product type D [mm] L [mm] d [mm] L1 [mm] C [mm]
CM1/4 2.3±0.2 6.3±0.5 0.6±0.05 27±2 7.5 or less
CM1/2 3.6±0.5 9.0±0.5 0.6±0.05 27±2 10.5 or less
CM1 4.8±0.4 14.2±0.8 1.0±0.05 27±2 16.0 or less
CM2 8.0±0.5 17.5±1.0 1.0±0.05 27±2 19.5 or less

Materials  
Insulation molding epoxy resin
Resistive film Ni-Cr type
Lead wire annealed copper wire
Core ceramic
Electrode caps brass / fe


Model number
CM 1/2   1002 - B
*1 *2 *3 *4   *5


*1 Product number RN14 :RN14 Series
*2


   		 Rated power


 		 1/4 : 0.25W (70degs.C)
1/2 : 0.5W (70degs.C)
1 : 1.0W (70degs.C)
2 : 2.0W (70degs.C)
*3

 Temperature coefficient of resistance

 C : ±50 ppm/degs.C
Blank : ±100 ppm/degs.C
*4
 Resistance value Please see Production resistance value range.
*5
 		 Resistance tolerance

 D : ±0.5 %
F : ±1.0 %




Update list
   
2025.06.18. Specification CM1/8 removed.
2024.02.22. The production resistance range of CM2 was changed from [10.0~1.5M] to [10.0~1M].
2023.04.21. First edition