DHAB S/318

Current Sensors Overview

The DHAB S/318 is a dual primary Hall effect current sensor manufactured by LEM USA Inc. Designed for automotive applications, it features electrical isolation between the high-power primary circuit and the electronic secondary circuit. The sensor supports bidirectional measurement of DC, AC, and pulse currents with a nominal primary current of 318A. It utilizes a unidirectional output signal and operates within a specified temperature range, providing reliable performance in demanding environments such as electric vehicle battery systems.

Current Sensors Feature Summary

• Dual primary architecture enabling electrical isolation between power and electronic circuits
• Capable of measuring bidirectional DC, AC, and pulse currents
• Optimized for low-voltage, high-power automotive applications

Current Sensors Applications

• Electric vehicle battery monitoring
• Hybrid fuel cell systems
• Public bus battery management

Current Sensors Procurement Notes

Verify the specific suffix against the official LEM datasheet to confirm pinout and output signal type. Confirm RoHS compliance status for the exact ordering code. Check component availability and lead times through authorized distributors. Ensure the selected variant matches the required nominal current rating of 318A for your design.

Current Sensors Selection Notes

Select this model when bidirectional current sensing is required in automotive platforms. The dual primary design offers flexibility in busbar integration. Consider the unidirectional output requirement for interface compatibility with downstream control electronics. Evaluate thermal management needs based on the operational temperature specifications provided in the technical documentation.

Current Sensors Part Context

This component belongs to the DHAB series, which stands for Dual HAB (Hall Effect). This series is specifically engineered for automotive use cases involving high currents. Unlike single-primary sensors, the dual configuration allows for distinct separation of the primary power path and the secondary signal processing, enhancing safety and noise immunity in electric drive trains.

Current Sensors Replacement Considerations

No direct public substitute part numbers are confirmed in the provided source material. Engineers should consult the official LEM replacement guide or contact manufacturer support for cross-reference information regarding legacy or alternative models.