About Our BMS Transformers

In large battery pack applications with daisy chain connections, the number of cells connected in series is very high, and the large voltage differences demand component-to-component isolation. The serial communication links between boards need to be isolated by transformer coupling circuits instead of capacitor coupling.

Pulse Electronics Networking BU offers a full line of isolation transformers, and common mode chokes for small to large battery pack systems for serial port safety isolation and EMI noise suppression.

We help designers create battery management systems for higher energy-efficiency modern cars such as EVs, HEVs, and PHEVs. All our battery management parts meet AEC-Q200 requirements for automotive applications.

Our team created the BMS transformers to meet the standards of sophisticated BMS systems. We designed isolation transformers, and common mode chokes to isolate multiple high-energy cells to increase safety and function.

Search Our BMS Transformers

Key Features and Benefits:

  • Supports BMS safety isolation and EMI noise suppression
  • Supports serial Daisy Chain isoSPI, SPI and other signal isolation
  • Meets AEC-Q200 requirements for automotive application
  • Operating temperature: -40°C up to +150°C
  • Multiple options for working voltages and voltage isolation
  • Functional, Basic, and reinforced insulation available.


  • Electric Vehicle
  • Energy Storage Systems
  • Data Center UPS
  • Solar energy storage
  • Green – Renewable
  • Marine