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Automotive Resistors

PPM Power supplies a range of pre-charge and discharging automotive resistors. Browse the tables below, or contact us to speak to a technical expert.

Pre-Charge Resistors

These premium high-power resistors are typically used as power distribution units to charge the DC-Link capacitors. They can withstand with high pulse energies, and up to 1000 V. The ohmic value, energy rating, mechanical design and electrical connection can also be customised to meet specific requirements.

  • Excellent isolation performance
  • High overload capability
  • AEC-Q200 compliant
  • Recyclable

Specifications

Part numberPower ratingMax. Operating voltagePulse energy ratingDielectric StrengthInsulation resistance
ESP 62/20150 W900 V3,300 J @ 1s-
RST375 W800 VDC-3000 VDC for 60s
RST5N100 W @ 85°C bottom case temp.≤1000 VDC--500 MΩ at 1000 V

Discharge Resistors

Discharging resistors are used to discharge the DC link capacitors after an electric
car has been switched off. They are mostly used in inverters. They deliver high isolation rating and high average power capability in a much smaller package than standard wire wound resistors, thus saving in weight and size. All discharge resistors with heat sink mount can be equipped with phase change material for a low Rth and stable thermal connection.

  • Small and lightweight
  • Mounts to heat sinks
  • Vibration and pulse resistant
  • AEC-Q200 compliant
  • Customised electrical connection

Specifications

Part numberPower ratingMax. operating voltageDielectric strength
EVR-5050 W900 V3000 VDC
EVR-150150 W900 V3000 VDC for 60s
EVR-300250 W1000 V3000 VDC for 60s
EVR-250250 W1000 V4000 VDC
GXP-NTC120 W500 V (up to 1000 on request)4000 VDC
PXP-200200 W500 V (up to 1000 on request)4000 VDC
EVR-250250 W1000 V4000 VDC
LXP-100100 W350 V (up to 500 on request)1800 VAC
ACP-100100 W600 V3000 VDC for 60s

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Useful Documents

EV Resistors Catalogue

Resistors Enquiry Form

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