Bourns SM91581AL BMS Transformers
Bourns SM91581AL Battery Management System (BMS) Transformers integrate common-mode chokes to provide noise reduction and isolation in BMS communication circuits. These Bourns single-channel reinforced-insulation signal transformers are designed for BMS communication circuits with Hi-Pot isolation voltages up to 8400VDC (UL recognized). The AEC-Q200-compliant SM91581AL operates over a -40°C to +125°C temperature range and is ideal for use inside 2500V energy storage systems and electric vehicles (EV).
Features
- 8400VDC Hi-Pot
- Basic insulation
- Per reinforced insulation IEC 62477-1:2022 and IEC 62477-2:2018
- Up to 2500VDC working voltage
- Reinforced insulation
- Per reinforced insulation IEC 62477-1:2022 and IEC 62477-2:2018
- Up to 1800VDC working voltage
- >23.7mm creepage distance, pollution degree 2, material group CTI I
- >23.7mm clearance distance, Overvoltage Category II, up to 5000m above sea level
- AEC-Q200 and RoHS compliant
Applications
- BMS in hybrid and electric powertrain systems
- Energy storage battery packs with BMS
Specifications
- 150μH to 450μH inductance range
- 0.6μH maximum leakage inductance
- 1:1 turns ratio
- -40°C to +125°C operating temperature range
- DC resistance (DCR)
- 0.5Ω maximum (1-3)
- 0.6Ω maximum (4-6)
Schematic
Dimensions
发布日期: 2026-09-11
| 更新日期: 2026-09-11