LA37S400S05KM

Current Sensors Overview

The Tamura LA37S400S05KM is a board-mount open-loop current sensor designed for precise DC current measurement up to 400A. It operates on a +5V supply with a ratiometric voltage output. The device features a fast response time of 3.5 microseconds and maintains an accuracy of 1.8%. It supports a supply voltage range from 4.5V to 5.5V and functions within a temperature range of -40°C to +105°C. Physical dimensions are 40mm in length, 30mm in width, and 18.5mm in height.

Current Sensors Feature Summary

• Open-loop Hall effect technology for high-frequency current sensing
• Ratiometric analog voltage output compatible with standard control interfaces
• Robust thermal performance suitable for industrial environments

Current Sensors Applications

• General purpose inverter motor drives
• Industrial power supply monitoring
• Battery management systems requiring high current capacity

Current Sensors Procurement Notes

Verify the specific suffix K and M against the manufacturer's latest datasheet to confirm pinout configuration and termination type. Ensure the selected variant matches the required operating voltage and current rating for the target application circuit. Cross-reference the RoHS compliance status with regional regulatory requirements before finalizing procurement orders.

Current Sensors Selection Notes

Select this component when measuring currents up to 400A with high precision is required. The 3.5us response time suits applications needing rapid feedback control loops. Consider the physical footprint of 40x30mm for PCB layout constraints. Verify that the system power supply remains stable within the 4.5V to 5.5V range to maintain specified accuracy levels.

Current Sensors Part Context

This part belongs to the LA37S series of board-mount current sensors by Tamura. The series utilizes open-loop magnetic sensing principles. Similar models in the family include lower current ratings such as the LA37S100S05KM. All variants share common interface characteristics and mechanical mounting standards within the product line.

Current Sensors FAQ

What is the maximum measurable current for this sensor?

The LA37S400S05KM is rated for a maximum current measurement of 400A.

Does this sensor support bidirectional current flow?

The provided documentation specifies it as a current sensor for DC measurement; bidirectional capability details should be confirmed in the full datasheet.