New varistors increase surge protection while reducing component footprint

Littelfuse, Inc. has released the Xtreme Varistor series. Created with a proprietary powder formulation developed by the company, these new, smaller varistors accomplish robust surge performance that aids to prevent damage, fire hazards, and catastrophic failure even under severe circumstances.

The varistors are specifically designed for use in the home and building automation, large and small appliances, outdoor LED lighting, smoke detectors and fire alarms, smart meters, and GFCI, AFCI, and USB outlets.

"The Xtreme Varistors provide numerous design advantages over several technologies currently on the market," said Johnny Chang, global product manager, EBU Passive Product Management, at Littelfuse. "The combination of their small footprint, wide operating voltage range, and high surge current rating, will result in more robust protection for your latest product designs."

The series offers many key benefits, including small disc sizes (from 5mm to 20mm) that reduce the component footprint and the PCB space needed for circuit protection. They are suitable for products with high operating temperature ranges up to 125C. Their high surge energy and current absorption withstanding capability extend product reliability and lifespan. The series also meets the UL-94 Flammability Rating V-0, ensuring burning stops within ten seconds. The series is available in bulk, and tape and reel packaging.