Bourns Announces POWrFuse™ High-Power Fuse Series Optimized for High-Voltage EV/HEV Application Accessory Circuit Protection

Bourns® POWrFuse™ Model PF-K series is designed to ISO 8820-8 standards

RIVERSIDE, Calif., August 29, 2022 - Bourns, Inc., a leading manufacturer and supplier of electronic components, today announced a new POWrFuse™ High-Power Fuse model series. Bourns specifically designed the POWrFuse™ Model PF-K Series to meet ISO 8820-8 standards for the protection of high-voltage accessory circuits in electric vehicles (EVs) and hybrid electric vehicles (HEVs). These circuits are found in a variety of EV/HEV applications including electrical energy storage (ESS), battery disconnect units (BDUs) and battery management systems (BMS).

These new high-voltage EV fuses support operation up to 500 VDC and feature a 20 kA at 500 VDC interrupting rating and an extended temperature range of -55 to +125 °C. Individual models within the PF-K Series have current ratings from 15 to 50 A and are available in bolt and PCB mounting options. In addition, the latest POWrFuse™ EV fuses have been tested to Bourns’ internal automotive quality standards for environmental reliability, transient current cycling and device electrical and fusing characteristics.

The Bourns® POWrFuse™ Model PF-K Series models are available now and are RoHS compliant* and halogen free**. For more detailed product series 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