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Vishay HRHA Series Charging Resistors

Vishay / MCB Industrie HRHA Series Charging Resistors use hybrid wire-wound technology designed for high energy density in compact formats. These resistors include options for integrated fuses and are compatible with heatsink mounting for thermal management. The HRHA resistors feature a resistance range from 1Ω to 1kΩ and an operating temperature range from -55°C to +250°C. These devices have a maximum operating voltage of 1000VDC and a dielectric voltage of 3000VRMS. Applications include precharge, discharge, and active discharge circuits in electric vehicle systems.

Features

Available with integrated fuse protection
Body can be mounted directly onto a heatsink
Comply with environmental regulations
Hybrid wirewound technology
Qualified to AEC-Q200 standards
Supports high energy-to-volume ratio
Terminals allow easy mounting

Applications

Battery energy storage systems
Electric and hybrid automobiles
Industrial power electronics
Railway and transportation equipment
Renewable energy systems

Technical Specifications

Parameters	Values
Resistance Range	1Ω to 1kΩ
Operating Temperature Range	-55°C to +250°C
Maximum Operating Voltage	1000VDC
Dielectric Voltage	3000VRMS
Tolerance	±5% and ±10%