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Newswire - Littelfuse Corporation (NASDAQ: LFUS), an industrial technology manufacturing company dedicated to powering a sustainable, connected and safer world, today announced the SMFA Asymmetric Series of Surface Mount Transient Suppression Diodes, the first asymmetric transient suppression solution in the market. The company today announced the SMFA Asymmetric Series of surface-mount transient suppression diodes, the market's first asymmetric transient suppression solution designed to protect silicon carbide (SiC) MOSFET gates from overvoltage events. Increasingly popular because of their faster switching speeds and higher efficiencies than traditional silicon MOSFETs and IGBTs, SiC MOSFETs have a growing need for robust gate protection, and the SMFA asymmetric series provides an innovative single-element solution that simplifies design while significantly improving circuit reliability.

The SMFA asymmetric series is the only transient suppression diode on the market designed specifically for the unique gate protection requirements of SiC MOSFETs. Unlike traditional solutions that require multiple Zener diodes or transient suppression diodes, the SMFA series effectively prevents ringing and overshoot in gate drive circuits using a single component, saving valuable PCB space and reducing circuit design complexity.

The SMFA asymmetric series of surface mount transient suppression diodes offer the following key features and functionality:

Asymmetric Design: The SMFA series is customised for the specific positive and negative gate voltage ratings of SiC MOSFETs, ensuring accurate and reliable protection;

Single component solution: Replaces multiple Zener diodes and transient suppression diodes, reducing component count and simplifying circuit layout;

Space efficiency: by combining multiple protection functions into a single component, the SMFA series minimises the use of PCB space, enabling more compact and efficient designs;

Compatibility: The SMFA asymmetric series is compatible with all available Littelfuse and other leading SiC MOSFETs, making it a versatile solution for a wide range of applications.

‘SMFA asymmetric transient suppression diodes protect valuable SiC MOSFETs from gate failures with a single component solution that easily replaces multiple Zener diodes and transient suppression diodes.’ Ben Huang, director of product marketing at Littelfuse, said, ‘This unique solution also saves valuable PCB space while reducing the number of components required.’

The SMFA asymmetric series is ideally suited for a variety of demanding applications using SiC MOSFETs, including:

AI/Data Centre Server Power: Improving the reliability and efficiency of critical power supplies in high-performance computing environments;

High-efficiency electric vehicle infrastructure (EVI) power systems: providing robust gate protection for electric vehicle charging stations and related power systems to ensure longevity and performance;

Highly Reliable Semiconductor/Industrial Equipment Power Supplies: protecting critical power supplies in industrial and semiconductor manufacturing environments where reliability and uptime are critical.

Availability

SMFA asymmetric series transient suppression diodes are available in tape and reel packages starting at 3,000 pieces. Sample requests are accepted through authorised Littelfuse distributors worldwide.