HOB series

A unique combination of short response time and high bandwidth for current sensing in harsh environments

High bandwidth and short response time

Unmatched performance for SiC MOSFET applications

With a market-leading response time of < 200 ns – compared to average response times of around 3 microseconds – the HOB-P sensor is capable of measuring DC, AC or pulsed current up to 250A. At the same time, it is ideally suited to wide bandgap (WBG) power electronics use cases and applications that require enhanced immunity to the dv/dt (acceleration) issues that SiC power modules are prone to. Among those applications stand handheld plasma cutters, welders, DC-DC converters, etc.

HOB Series


Main benefits 

  • High cut-off frequency up to 1 MHz
  • Unique short response time of < 200 ns
  • Ideal for harsh environments with operating temperature range from -40 °C to +105 °C
  • Compact design for THT PCB mounting
  • Lower noise and better dv/dt behavior vs other classical Hall Effect O/L sensors from the market
  • Low power consumption

Main features

  • Open loop multi-range current sensor measures DC, AC or pulsed current up to 250 A
  • Single power supply +5 V
  • Galvanic separation between primary and secondary circuit
  • Creepage / clearance > 11 mm
  • Total error (ambient temp.) < 1,45 %
  • 4 models to cover 4 nominal currents of 50, 75, 100 and 130 ARMS
  • Factory calibrated