HY 12-P

Current Sensors Overview

The HY 12-P is a Hall effect current transducer from LEM USA Inc., designed for PCB mounting. It measures AC/DC currents with a primary rating of 12.5 A and a secondary output ratio of 400 mV/A. The device operates on a ±15 V power supply, drawing a maximum of 10 mA. Key electrical specifications include a bandwidth of DC to 50 kHz, an accuracy of ±1%, and a linearity of ±1%. The response time is 3 µs, and it functions within a temperature range of -10°C to 80°C.

Current Sensors Feature Summary

• Provides galvanic isolation between the primary circuit and the secondary measurement circuit using Hall effect technology.
• Designed for direct printed circuit board (PCB) mounting to facilitate compact integration in electronic systems.
• Capable of measuring both alternating current (AC) and direct current (DC) signals simultaneously.

Current Sensors Applications

• Industrial automation control systems
• Power electronics monitoring circuits
• Battery management systems

Current Sensors Procurement Notes

Verify the specific ordering suffix and package variant when sourcing, as LEM part numbers may include additional codes for tolerance or packaging. Confirm that the ±15 V supply requirement aligns with the target system's available rails. Ensure the PCB footprint matches the component's mechanical dimensions during layout design to avoid assembly issues.

Current Sensors Selection Notes

Select this model for applications requiring precise measurement of low-current AC/DC signals up to 12.5 A. It is suitable where high bandwidth (50 kHz) and fast response (3 µs) are necessary. Consider the ±1% accuracy and linearity limits against system requirements. Verify thermal management capabilities given the 80°C upper operating limit.

Current Sensors Part Context

The HY series represents LEM's line of Hall-effect transducers optimized for surface-mount or through-hole PCB integration. These devices offer cost-effective isolation solutions for current sensing in compact form factors. The HY 12-P specifically targets lower current ranges within this family, providing a standardized interface for designers needing reliable AC/DC current feedback.

Current Sensors Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.

Current Sensors FAQ

What is the output sensitivity of the HY 12-P?

The output sensitivity is 400 mV per Ampere of primary current.

Can the HY 12-P measure pure DC current?

Yes, the device is designed to measure both AC and DC currents.