Bourns® SM91806AL series BMS planar transformer

This single-channel basic insulation transformer has a planar structure and is designed for BMS applications.

Bourns magnetics product line is pleased to introduce the model SM91806AL AEC-Q200 compliant, automotive-grade BMS (Battery Management System) signal transformer for next-generation applications. This single-channel basic insulation transformer has a planar structure and is designed for BMS applications.

The Bourns® model SM91806AL BMS planar transformer was developed for use with Analog Device’s model. LTC6815 series, NXP’s model MC33771C series and Texas instruments’ model BQ79616. This BMS transformer offers a working voltage of up to 1000VDC and Hi-Pot isolation voltage up to 4300VDC or 3000VAC, with an extended operating temperature range from -40 to +125 °C. Additionally, Bourns’ automated manufacturing process has further improved the quality and cost-effectiveness of this transformer.

Features

• Planar technology for BMS signal applications
• Working voltage up to 1000VDC
• Hi-Pot: 4300VDC or 3000VAC
• Basic insulation compliant with IEC 60664-1/61558-1/62368-1 standards
• Clearance distance >8.2 mm, pollution degree 2, material group CTI I
• Creepage distance >8.2 mm, overvoltage category II
• Partial discharge level up to 1200V per IEC 60664
• Expanded temperature range: from -40 to +125 °C
• RoHS compliant* and halogen free**
• AEC-Q200 compliant
• Automotive grade

Applications

• Battery Management Systems (BMS)
• Energy Storage Systems (ESS)

^{* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500ppm or less.}