The data sheet for ProTek Devices’ PSOT series of transient voltage suppressor arrays (TVS arrays) has been updated. These TVS arrays are designed for power or data line applications (RS-232, RS-422 & RS-423; cell phones and smartphones; controlling and monitoring systems; wireless Bus protection; other handheld devices) to provide protection against electrostatic discharge (ESD), tertiary lightning and switching transients. This series offers low clamping voltage for the protection of sensitive interfaces. The PSOT series has a peak pulse power per line of 500 Watts for an 8/20μs waveshape. It is available in either a bidirectional or unidirectional configuration. This series meets the IEC 61000-4-2 (ESD): air 15kV, contact 8kV; IEC 61000-4-4 (EFT): 40A, 5/50ns; IEC 61000-4-5 (surge): 24A, 8/20μs – level 2 (line-ground) and level 3 (line-line). It is also RoHS and REACH compliant.
The PSOT series consists of 14 parts with varying voltages ranging, from 3V to 36V. Part numbers noted in the data sheet with a “C” suffix are bidirectional devices. For example, the PSOT03 is a 3.3V unidirectional device whereas the 3.3V PSOT03C is bidirectional.
The PSOT series is provided in a molded JEDEC SOT-23 package at an approximate weight of only 8 milligrams. Other key mechanical characteristics include lead-free pure-tin plating (annealed) and a solder reflow temperature of (pure-tin – Sn, 100) 260-270 degrees Celsius. Operating temperature is -55 to 150 degrees Celsius and storage temperature is the same. The PSOT series also boasts a flammability rating of UL 94V-0 and is provided in 8mm tape and reel, per EIA standard 481. The full data sheet can be downloaded here.