Bourns Introduces BMS Signal Transformer Optimized for Higher Energy Storage Battery Management System Applications

Bourns® Model SM91801AL is developed for use with Analog Device Model LTC6815 Series, NXP Model MC33771C Series and Texas Instruments Model BQ79616

RIVERSIDE, Calif., February 28, 2024 - Bourns, Inc., a leading manufacturer and supplier of electronic components for power, protection, and sensing solutions, today introduced a new single channel basic insulation transformer with a planar structure optimized for Battery Management System (BMS) applications. Bourns® Model SM91801AL is the next ‘first to market’ BMS signal planar transformer product Bourns has engineered, and is developed for use with several prominent semiconductor supplier IC series: Analog Device Model LTC6815 Series, NXP Model MC33771C Series and Texas Instruments Model BQ79616 ICs that are primarily used in multi-cell battery monitoring designs.

The latest BMS planar signal transformer from Bourns is AEC-Q200 compliant and automotive grade. It features a basic insulation layer that complies with IEC 60664-1 and IEC 62368-1 standards, and is manufactured using a fully automated process to deliver a high quality and cost-effective solution for next-generation applications. This BMS transformer offers a working voltage of up to 1000 VDC and a Hi-Pot isolation voltage up to 4300 VDC or 2500 VAC with an extended operating temperature range of -40 to +125 °C.

Bourns® Model SM91801AL is available now and is RoHS* compliant and halogen free**. For more detailed product information, please see:

*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.

About Bourns

Bourns, Inc., is a leading manufacturer and supplier of position and speed sensors, circuit protection solutions, magnetic components, microelectronic modules, panel controls and resistive products. Headquartered in Riverside, California, USA, Bourns serves a broad range of markets, including automotive, industrial, consumer, communications, non-critical life support medical (low/medium risk), audio and various other market segments. Additional company and product information is available at

Bourns® and the Bourns logo are registered trademarks of Bourns, Inc. and may be used only with the permission of Bourns and proper acknowledgement. Other listed names and brands are trademarks or registered trademarks of their respective owners.

Bourns® products have not been designed for and are not intended for use in "lifesaving," "life-critical" or "life-sustaining" applications nor any other applications where failure or malfunction of the Bourns® product may result in personal injury or death. See Legal Disclaimer Notice

Agency Contact:
Annette Keller
Keller Communication
Company Contact:
David Scofield
Bourns, Inc.
(951) 781-5054