SM91502ALE

Pulse Transformers Overview

The SM91502ALE is an automotive-grade BMS pulse transformer manufactured by Bourns Inc. It features a single primary and single secondary winding with a 1:1 turns ratio. The component has an inductance of 150 µH and operates within a temperature range of -40°C to +125°C. Its physical dimensions are 7.62 mm in length, 6.73 mm in width, and 5.72 mm in height. The unit weighs approximately 400 mg and utilizes SMD/SMT termination for PCB mounting. It holds AEC-Q200 qualification.

Pulse Transformers Feature Summary

• Single channel design with integrated choke functionality
• Functional insulation providing high voltage isolation
• First pin auto-termination capability for automated assembly

Pulse Transformers Applications

• Battery Management Systems (BMS) in electric vehicles
• Automotive power electronics requiring isolated signal transmission
• High-voltage automotive circuits needing functional insulation

Pulse Transformers Procurement Notes

Verify the specific suffix 'ALE' against the manufacturer's official datasheet to confirm the exact inductance value and packaging configuration. Ensure that the AEC-Q200 qualification status aligns with your project's automotive reliability requirements. Confirm surface mount compatibility with your PCB footprint and reflow soldering profile before finalizing procurement orders.

Pulse Transformers Selection Notes

Select this component when a compact, single-channel isolated transformer is required for automotive BMS applications. The 150 µH inductance and 1:1 ratio suit specific signal coupling needs. Consider the 125°C maximum operating temperature for high-heat environments. The integrated choke feature may simplify circuit design by reducing external component count.

Pulse Transformers Part Context

This part belongs to the SM series of BMS transformers from Bourns. It is designed specifically for automotive applications, meeting stringent AEC-Q200 standards. The series includes variants like the SM91803AL, indicating a family of components optimized for battery management systems in modern electric and hybrid vehicles.

Pulse Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult the manufacturer for direct replacements or cross-reference similar AEC-Q200 qualified BMS transformers with matching inductance and isolation ratings.