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Bourns Releases New AEC-Q200 Compliant, Automotive Grade Next-Generation BMS Signal Transformer

Model SM91806AL



Riverside, California – January 9, 2024 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 1000 VDC and Hi-Pot isolation voltage up to 4300 VDC or 3000 VAC with an extended operating temperature range of -40 to +125 °C. Additionally, Bourns’ automated manufacturing process has further improved the quality and cost-effectiveness of this transformer.


Model

OCL (µH)

Size (mm)

Working Voltage (V)

Creepage Distance (mm)

Clearance Distance (mm)

SM91806AL

150 ~ 450

17.4 x 8.5 x 5.5

1000

Min. 8.2

Min. 8.2


Features

  • Planar technology for BMS signal applications

  • Working voltage: up to 1000 VDC

  • Hi-Pot: 4300 VDC or 3000 VAC

  • Basic insulation compliant with IEC 606641/61558-1/62368-1 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 1200 V per IEC 60664

  • Expanded temperature range: -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 1500 ppm or less.




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