September 2008

Rev 1

1/9

9

SMA4F

High junction temperature Transil™

Features

– 400 W (10/1000 µs)

– 3 kW (8/20 µs)

Complies with the following standards

– 15 kV (air discharge)

– 8 kV (contact discharge)

– 25 kV (human body model)

Description

The SMA4F Transil series has been designed to

protect sensitive equipment against electrostatic

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 provides a

better safety margin to protect sensitive circuits

with extended life time expectancy.

Packaged in SMAflat non exposed pad, this

minimizes PCB space consumption (footprint in

accordance with IPC 7531 standard).

TM: Transil is a trademark of STMicroelectronics

K

A

Unidirectional

SMAflat

www.st.com