Passive Bauelemente, BECK Elektronik  

High Voltage Thick Film Chip Resistor for Automotive Applications from KOA

KOA’s high voltage HV73-series has been expanded with the addition of the new HV73V-types for automotive applications.

  • Increased power rating for HV73V2A (0805 = 0.25 W)
  • Increased max. working voltage for HV73V2B (1206 = 800 V)

The special inner material makes the part suitable for high voltages with improved temperature cycling stability compared to standard resistors.
The higher critical resistance allows a higher voltage at higher resistance values.
The special coating ensures that higher voltages can be applied at operating temperatures up to +155 °C.

KOA's new high voltage type chip resistor HV73V-series for automotive applications achieves max. working voltages 2.5 times higher than general-purpose type chip resistors. This means fewer resistors are used in voltage detecting circuits saving PCB space.

The HV73V is suitable for high reliability automotive applications.

Product Features:

  • Thick film chip for high voltage
  • 10 kΩ to 51 MΩ
  • 0603, 0805 and 1206 inch
  • ±0.5 %, ±1 %, ±2 % and ±5 %
  • Operating temperatures up to +155 °C
  • Anti-Sulfuration types available (HV73V_RT)
  • EU-RoHS compliant
  • Tested acc. to AEC-Q200 requirements


  • Battery module (Voltage monitoring, battery management circuit)
  • Inverter module (Inverter circuit, DC-DC converter)
  • Around circuits where regenerative voltage of motor is applied
  • Voltage detection circuit of quick charger
High Voltage Thick Film Chip Resistor Automotive Applications