Bourns SM91534ALA series

The Bourns® model SM91534ALA is a battery management system (BMS) signal transformer designed for high-voltage isolation and noise rejection in automotive and energy applications. This single-channel transformer integrates reinforced insulation and common mode choke functionality to support reliable signal transmission in BMS architectures. This model is optimized for automated assembly and offers a cost-effective solution compared to manual versions while delivering improved quality.

Features

• Hi-Pot: 6400VDC
• Working voltage up to 1500VDC
• Auto pin termination
• UL recognized: E515965 per UL62368-1
• Reinforced insulation IEC62477-1:2022 and IEC62368-1:2018
• Creepage distance > 16.6mm, pollution degree 2, material group CTI I
• Clearance distance > 16.6mm, overvoltage category II, up to 5000m above sea level
• Impulse voltage: 12kV, 1.2/50μs
• AEC-Q200 and RoHS compliant*
• Automotive grade

Applications

• Battery management systems (BMS) in hybrid and electric powertrain systems
• Energy storage battery packs with battery management systems

^{* RoHS Directive 2015/863, Mar 31, 2015 and Annex.}