December 2007

Rev 2

1/10

10

SMM4F

High junction temperature Transil™

Features

– 400 W (10/1000 µs)

– 2.4 kW (8/20 µs)

– 0.2 µA at 25 °C

– 1 µA at 85 °C

Complies with the following standards

– 15 kV (air discharge)

– 8 kV (contact discharge)

– 25 kV (human body model)

Description

The SMM4F Transil series has been designed to

protect sensitive equipment against electro-static

discharges according to IEC 61000-4-2, MIL STD

883 Method 3015, and electrical over stress such

as IEC 61000-4-4 and 5. They are generally for

surges below 400 W 10/1000 µs.

This planar technology makes it compatible with

high-end equipment and SMPS where low

leakage current and high junction temperature are

required to provide reliability and stability over

time. Their low clamping voltages provide a better

safety margin to protect sensitive circuits with

extended life time expectancy.

Packaged in STmite flat, this minimizes PCB

space consumption (footprint in accordance with

IPC 7531 standard).

TM: Transil is a trademark of STMicroelectronics

K

A

STmite flat

(DO222-AA)

www.st.com