Littelfuse Launches SM10 Series Varistor

February 06, 2024

Littelfuse unveiled their new SM10 Varistor Series, a Metal Oxide Varistor (MOV) designed to provide superior transient surge protection in automotive electronics, electric vehicles (EVs), and other applications.

It’s the first surface-mounted MOV device compliant with the AEC-Q200 automotive standard, capable of withstanding high operating temperatures and offering ultra-high surge current handling in a compact package. 

The SM10 Series Varistor key features:– **High Operating Temperature: **Able to withstand temperatures up to 125 degrees Celsius, ensures reliability in harsh conditions.– **AEC-Q200 Compliance:** Meets rigorous automotive electronics standards, suitable for Electric Vehicles (EVs) and charging stations.– **Ultra-High Surge Capability:** Excellent repetitive surge capability handles up to 40 pulses of 6 KV / 3 KA surges, significantly extending product reliability and lifespan.– **Compact Design:** With dimensions of 15.7 mm x 8.5 mm x 14 mm, it saves valuable PCB surface space and is ideal for automated SMT PCB assembly processes.– **Wide Voltage Rating:** Ranging from 130 Vac to 625 Vac, accommodating a broad spectrum of electronic applications.

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.”

The SM10 is ideal for a variety of demanding applications, including:– Automotive electronics– Electric vehicles and charging stations– Building automation– Appliances– Consumer electronics– Power storage systems– High-end power supplies

**Availability**The SM10 Varistor Series is available in tape and reel quantities of 300. Place sample requests through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit [Littelfuse.com](https://www.littelfuse.com/).