HAH2
High performance dual phase current sensor +/- 500A. Suitable for high power motor control and inverter applications, with high integration
HAH2 - Automotive current sensors
The HAH2 family is a dual-phase sensor for DC, AC, or pulsed currents measurement in high power and low voltage automotive applications. It offers a galvanic separation between the primary circuit (high power) and the secondary circuit (electronic circuit).
The HAH2 family gives you a choice of having different current measuring ranges in the same housing (from ±100 up to ±500 A).
The HAH2 automotive current sensors are designed on the open loop hall effect technology.
HAH2 – Features and benefits

Features
- Open Loop transducer using the Hall effect sensor
- Low voltage application
- Unipolar +5 V DC power supply
- Primary current measuring range up to ±300 A
- Maximum RMS primary admissible current: limited by the busbar, the magnetic core or ASIC T < +150 °C
- Operating temperature range: −40 °C < T < +125 °C
- Output voltage: fully ratio-metric (in sensitivity and offset)
Main characteristics
- Excellent accuracy
- Very good linearity
- Very low thermal offset drift
- Very low thermal sensitivity drift
- Wide frequency bandwidth
- No insertion losses
- Very fast response time
Typical applications
The HAH2 automotive sensors are purposefully engineered for demanding high-power motor control and inverter applications. These applications include but are not limited to:
- Starter Generators
- Inverters
- HEV applications
- EV applications
- DC / DC converters
LEM HAH2 – Download & Technical Characteristic
Product | Document | Primary nominal RMS voltage | Supply Voltage range | Op. Temperature |
---|---|---|---|---|
HAH2DR 300-S00 | 300 A | 5 to 5 | -40 to 125°C | |
HAH2DR 500-S00 | 500 A | 5 to 5 | -40 to 125°C |
HAH2 Sensors – ASK FOR SAMPLES / QUOTATIONS
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