Resistors

Resistors

Product line-up to increase the reliability of energy management and industrial equipment

Resistors

Type Small Sized Ceramic Insulation Fixed Resistors
Application Servos, inverters, machine tools, welding machines, switching power supplies, various PCBs
ModelMS
Power rating
(W)
2・3・5・7・10・15・20
CharacteristicsMultiple types of basic resistors with ceramic insulation
ModelMG
Power rating
(W)
2・3・5・7・10
CharacteristicsReduced heat conduction to substrate
ModelMP
Power rating
(W)
3・5・7・10・15・20
CharacteristicsDirect mounting on substrate
ModelCV
Power rating
(W)
9・15・24・32
CharacteristicsScrew type optimal for detection resistance
ModelMH
Power rating
(W)
10・15・20・30・40
CharacteristicsHeat radiation promotion type with chassis mounting
ModelMF
Power rating
(W)
10・15・20・30・40
CharacteristicsFASTON tab terminal type
ModelMN
Power rating
(W)
2・3・5・7・10
CharacteristicsSame direction leads / space saving type
ModelRF
Power rating
(W)
2・3・5・7・10
CharacteristicsWith built-in thermal fuse as protection element
ModelMB
Power rating
(W)
7・10・15
CharacteristicsMulti mounting type for capacitor discharge and balancing
Type High Power Ceramic Insulation Fixed Resistors
Application Servos, inverters, hoists, machine tools, elevators, solar power generators, composite machines, various industrial uses
ModelCF
Power rating
(W)
80・120・220
CharacteristicsGeneral purpose resistors for various electronic and industrial equipment
ModelCAW
Power rating
(W)
150・200・250・300・350・400
CharacteristicsAluminum case type with heat radiation fins
ModelCAN
Power rating
(W)
60・80・100・120・150・200・250・300・400・500・750・1000
CharacteristicsRegenerative discharge resistors
ModelCAL
Power rating
(W)
750・1000・1200・1500
CharacteristicsHigh power regenerative discharge resistors
ModelCAP
Power rating
(W)
60
CharacteristicsBargain priced ceramic case type
ModelCAM
Power rating
(W)
100・150・200
CharacteristicsThin, aluminum case type with heat radiation fins
ModelCAZ
Power rating
(W)
200・250・300・400・500
CharacteristicsAluminum case type with heat radiation fins
ModelCAY
Power rating
(W)
300・400・500・600・700
CharacteristicsAluminum case type with large heat radiation fins
ModelCAX
Power rating
(W)
750・1000・1500・2000
CharacteristicsAluminum case type with large heat radiation fins
ModelCAB
Power rating
(W)
100・200
CharacteristicsExtra thin shape, aluminum case type for various electronic and industrial equipment
Type Metal Clad Wire Wound Fixed Resistors
Application Precision equipment, communication infrastructure
ModelRHA chassis mounting
Power rating
(W)
10・20・30・75・120・200
CharacteristicsAluminum case type precision wire wound resistors
ModelRHA heat sinkable
Power rating
(W)
6・8・10・30・50・75
CharacteristicsAluminum case type precision wire wound resistors
Type Flame Proof Wire Wound Fixed Resistors
Application Loading equipment, power supply equipment, power / energy fields
ModelRGH general purpose
Power rating
(W)
5・10・20・30・40・50・60・80・100・120・150・200・250・300・400・500・750・1000
CharacteristicsFlame proof 5W – 1KW type
ModelRGH non-inductive
Power rating
(W)
3・5・10・15・20・22・25・35・43・50・66・88・108・130・168・210・315・420
CharacteristicsFlame proof 3W – 420W type
Type Flame Proof Ribbon Wire Wound Fixed Resistors
Application Loading equipment, power supply equipment, robots
ModelRGR
Power rating
(W)
90・120・150・180・225・300・375・450・600・750・1000・1300
CharacteristicsLow resistance high power ribbon flame proof type
Type Flame Proof Flat Wire Wound Fixed Resistors
Application Machine tools, power supply equipment, broadcasting equipment
ModelRGJ general purpose
Power rating
(W)
21・31・53・68・91・150 (reference)・250 (reference)
CharacteristicsFlat case wire wound type
ModelRGJ non-inductive
Power rating
(W)
15・22・37・47・63・150 (reference)・250 (reference)
CharacteristicsFlat case wire wound type
Type Enclosed Wire Wound Variable Resistors
Application Amusement, air conditioners, power supply equipment, various test equipment
ModelRVF
Power rating
(W)
10・25
CharacteristicsEnclosed variable resistor, panel stopper F-type
ModelRVS
Power rating
(W)
25
CharacteristicsEnclosed variable resistor, direct mounting S-type
Type Flame Proof (Enameled Glass) Wire Wound Variable Resistors
Application Power supply equipment, various test equipment
ModelRGY
Power rating
(W)
25・50・75
CharacteristicsPower wire wound flame proof type variable resistor
ModelRPS
Power rating
(W)
100・200・300
CharacteristicsHigh power enameled glass wire wound type variable resistor (*non-RoHS compliant)
Standard Nominal Resistance Values・Glossary・Notes

Standard Nominal Resistance Values

[Nominal Resistance Values]

Nominal resistance values fall into the series approximated using the following common ratio.

Glossary

[Ambient temperature]

Maximum value of the ambient temperature at which resistor can be continuously used with specified rated load (power) applied. Please note that this is the temperature around resistor inside the equipment where it is installed, not the air temperature outside the equipment.

[Power rating]

Maximum power that can be continuously applied to resistor at the rated ambient temperature.

[Voltage rating]

Maximum value of DC or AC voltage (effective value at commercial frequency) that can be applied continuously at the rated ambient temperature. It can be calculated by substituting the power rating and nominal resistance values to the following equation.

However, this value should not exceed the maximum operating voltage.

[Critical resistance]

Maximum nominal resistance to which the rated power can be applied without exceeding the maximum operating voltage. For the critical resistance, the values of rated and maximum operating voltage are the same.

[Maximum operating voltage]

Maximum value of DC or AC voltage (effective value at commercial frequency) that can be applied continuously to a resistor or resistive element. However, for resistance values below the critical resistance, the maximum applied voltage must not exceed the rated voltage.

[Maximum load voltage]

The maximum applicable voltage in the overload test (JIS C 5201-1 4.13).

[Withstanding voltage]

AC voltage (effective value at commercial frequency) that can be applied for 1 minute between terminals and designated point on the housing in the withstand voltage test (JIS C 5201-1 4.7).

[Derating curve]

Curve expressing the relationship between the ambient temperature and maximum power that can be loaded continuously at that temperature. Generally expressed as percentage.

[Temperature coefficient of resistance]

The rate of resistance change per 1°C between specified temperatures within the operating temperature range of resistor, which is expressed by the following equation.

Usage notes

1. Handling precautions

Please be especially careful when using resistors in the following environmental conditions.

  • 1) When using in water, organic solvents and other liquids.
  • 2) When using in places with large concentration of SO2, NO2 and other corrosive gases.
  • 3) When using embedded in resin, with coating applied, etc.
  • 4) When using water and water-soluble detergents during flux cleaning.
  • 5) When using in places where condensation may occur.

2. Storage

Since long-term storage may lead to resistor performance deterioration, please be careful when storing products in the following environment.

  • 1) In places with high temperature, high humidity and direct sunlight.
  • 2) In places with high concentration of corrosive gases.
  • 3) It is recommended to use products within 6 months after delivery.

3. Pulse withstanding properties

Please be especially careful when using resistors in circuits with high voltage pulses and surge currents.