High-Surge-Rating SMD TVS Diodes Delivers Superior Protection Against Lightning Strikes and Other Transient Surges for Power Supply Applications

2 November 2022 - 0 Comments

Littelfuse, Inc. has introduced the new SMTOAK2 TVS Diode Series that allows electronics designers to achieve a more robust transient voltage, overvoltage protection, and lightning protection system while using less printed circuit board (PCB) space. This compact, 2 kA 8/20 μs rated, surface-mount package SMTOAK2 TVS Diode Series is ideal for high-power-density applications that require robust protection in a small footprint, including ICT, Medical, Industrial DC power supplies; high-power DC bus protection; DC power supplies used in exposed and harsh environments; power over ethernet (PoE) ports; small cell, micro cell, remote radio units (RRU), baseband units (BBU); and high-power density SiC and GAN-based DC/DC converters/power supplies.

This TVS Diode Protects high-cost, high-current, high-speed MOSFET/IGBT circuits against inductive kicks with low-clamping voltage and high-surge rating and enables designers to achieve robust circuit protection with less PCB space via a modified, compact SMTO-263 surface-mount package 50% smaller than SMTO-218 surface-mounted solutions. Moreover, it is compatible with automated PCB assembly processes reducing costs while saving time.

Features

Glass passivated chip junction in modified TO- 263 package
ESD protection of data lines in accordance with IEC 61000-4-2, 30 kV(Air), 30 kV (Contact)
Fast response time: typically less than 1.0 ps from 0 Volts to VBR min
Excellent clamping capability
Low incremental surge resistance
UL Recognized compound meeting flammability rating 94V-0
Meets MSL level 1, per J-STD-020, LF maximun peak of 260°C
For surface mounted applications to optimize board space
Low profile package
High temperature reflow soldering guaranteed: 260°C/10 sec at terminals