Bourns SM91502ALA AEC-Q200 BMS Signal Transformers

Bourns SM91502ALA AEC-Q200 Compliant BMS Signal Transformers are single-channel functional isolation transformer modules with common mode chokes for noise rejection in battery management system (BMS) applications. The Bourns SM91502ALA BMS Signal Transformers utilize a high level of automation in the pin winding process to enhance product quality and production efficiency. The series is AEC-Q200 compliant and offers a 1000VDC working voltage and a 4300VDC Hi-Pot isolation voltage. The transformers operate over a -40°C to +125°C temperature range.


  • First pin auto-termination
  • Up to 1000VDC working voltage
  • Up to 4300VDC Hi-Pot isolation voltage
  • Single-channel with integrated choke
  • Functional insulation
  • AEC-Q200 compliant
  • RoHS compliant and halogen-free


  • BMS
  • Energy storage systems
Published: 2021-09-20 | Updated: 2022-03-11