Varistor series offers a breakthrough in automotive and electronics surge protection

Littelfuse, Inc. has released the SM10 Varistor Series, a revolutionary MOV designed to deliver superior transient surge protection in automotive electronics, EVs, and other applications. This latest addition stands out as the first surface-mounted MOV device compliant with the AEC-Q200 automotive standard, able to withstand high operating temperatures and offer ultra-high surge current handling in a compact package.

The series of varistors is a game-changer in the industry, offering:

High Operating Temperature, being able to withstand temperatures up to 125C, ensures reliability in harsh conditions. AEC-Q200 Compliance meets rigorous automotive electronics standards and is suitable for EVs and charging stations. Ultra-high surge Capability provides excellent repetitive surge capability and handles up to 40 pulses of 6KV/3KA surges, notably extending product reliability and lifespan. The compact design offers dimensions of 15.7mm x 8.5mm x 14mm, saving valuable PCB surface space, and is ideal for automated SMT PCB assembly processes. Its wide Voltage Rating ranges from 130VAC to 625VAC, accommodating a wide spectrum of electronic applications.

"The SM10 Series Varistors effectively protect electronic circuits against multiple transient voltage surges with ultra-high surge handling capability," states Johnny Chang, director of product management at Littelfuse. "They are AEC-Q200 compliant, enabling end-products to work in harsh ambient environments for longer lifetimes."

Amy Chu, global product manager at Littelfuse, adds, "The vertical surface-mounted SM10 Series Varistors enable electronics designers to realize a 'SMT components only policy' for primary side circuit surge protection. Their compact size and ability to replace through-hole devices allow for fully automated and SMT PCB assembly processes."

Compared to existing solutions, the series offers unparalleled performance with its high operating temperature, excellent repetitive surge capability, and compact size. This combination makes it an attractive option for automotive, appliance, and building automation industries needing reliable high-surge varistors.

The series is ideal for various demanding applications, including automotive electronics, building automation appliances, consumer electronics, power storage systems, and high-end power supplies.