SM91525AL-E

Pulse Transformers Overview

The SM91525AL-E is an automotive-grade Battery Management System (BMS) signal transformer manufactured by Bourns. It features a single-channel design with an integrated common-mode choke, optimized for use with Texas Instruments BQ79616 devices. The component supports a working voltage of 1000 VDC and withstands a Hi-Pot test of 4300 VDC. It operates within a temperature range of -40°C to +125°C and complies with AEC-Q200 qualification standards. The unit utilizes pin auto-termination technology and is available in surface-mount packaging formats including cut tape and reel.

Pulse Transformers Feature Summary

• Single-channel architecture integrating a common-mode choke for compact circuit design
• High dielectric strength capability supporting 4300 VDC isolation testing
• Automotive reliability compliance through AEC-Q200 qualification standards
• Surface-mount construction utilizing pin auto-termination manufacturing process

Pulse Transformers Applications

• Battery Management System signal isolation
• Texas Instruments BQ79616 compatible circuits
• Automotive high-voltage system monitoring

Pulse Transformers Procurement Notes

Verify the specific suffix designation against official Bourns documentation to confirm exact electrical characteristics and package configuration. Ensure that procurement channels provide valid traceability records for automotive-grade components. Confirm compatibility with intended PCB footprint dimensions and soldering profiles prior to integration into production assemblies.

Pulse Transformers Selection Notes

Select this component when designing isolated communication paths for multi-cell battery stacks requiring robust common-mode noise rejection. The integrated choke functionality reduces total bill of materials count compared to discrete solutions. Verify thermal management requirements align with the specified operating temperature range for long-term reliability in enclosed automotive environments.

Pulse Transformers Part Context

This part belongs to Bourns' portfolio of automotive magnetic components designed for electric vehicle powertrain and energy storage applications. The series emphasizes miniaturization and high-voltage isolation capabilities necessary for modern battery management architectures. It represents a specialized solution for signal integrity preservation in noisy high-voltage environments.

Pulse Transformers Replacement Considerations

Consult official Bourns substitution guides for direct equivalents. Cross-reference with other BMS transformers from the same manufacturer family ensuring identical pinout and electrical specifications are maintained.