Littelfuse 1-Element Uni-Directional TVS Diode 1 kW 2-Pin SOD-123 SMF220A

Littelfuse SMF220A is a high-performance 1-element uni-directional Transient Voltage Suppressor (TVS) diode designed to shield sensitive electronic devices from damage caused by voltage spikes and transients, such as those induced by lightning strikes and switching events.

This TVS diode delivers a peak pulse power dissipation of 1 kW and features a robust 2-pin SOD-123 surface mount package that occupies half the footprint of the traditional SMA package, with an industry-low profile height of just 1.1 mm. Its compact size makes it ideal for high-density circuit board layouts where space-saving components are critical.

The SMF220A has a minimum breakdown voltage (Vbr) of 246 V and a maximum reverse stand-off voltage (Vwm) of 220 V, enabling it to clamp harmful voltage surges efficiently with a clamping voltage (Vc) of 356 V. It can withstand peak pulse currents (Ippm) up to 0.6 A, providing reliable transient suppression even under demanding conditions.

Designed for versatility and durability, this device operates reliably across a wide temperature range from −65°C to 150°C, supporting a broad span of industrial, commercial, and consumer electronic applications. The diode includes built-in ESD protection compliant with IEC-61000-4-2 standards, capable of handling discharges up to 30 kV for both air and contact, safeguarding data lines and circuits.

As an UL Recognized component per UL 497B, the SMF220A is certified as an isolated loop circuit protector, making it suitable for integration into complex electronic systems where regulatory compliance is mandatory.

Use cases for this TVS diode include protection circuit designs in power supplies, telecommunication devices, industrial controls, and other electronic equipment vulnerable to transient overvoltage events.

Crafted in China, Littelfuse maintains stringent quality standards to ensure consistent performance and long-term reliability in demanding environments. Explore more Littelfuse TVS Diodes and related semiconductor components in the Electronics & Electricals category on EnvMart.

Designed for protection against voltage transients induced by lightning and switching events. Single diode configuration with uni-directional polarity ensures reliable transient voltage suppression. Compact surface mount SOD-123 package with a low profile height of 1.1 mm.

Rated for a maximum reverse stand-off voltage of 220 V and a peak pulse current of 0.6 A. Clamping voltage of 356 V ensures clamping of voltage spikes to safe levels. Operating temperature range from −65°C to 150°C for harsh environment tolerance.

IEC-61000-4-2 ESD protection up to 30 kV contact and air discharge compatible. UL Recognized per UL 497B as an isolated loop circuit protector. Ideal for use in electronic equipment requiring transient voltage suppression and ESD protection.

Made in China.