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PROTECTION PRODUCTS

SDC36

TVS Diode Array for

Proximity Switch Input Protection

Description

Features

Circuit Diagram

Schematic & PIN Configuration

Revision 9/2000

The SDC36 is a high-surge transient voltage suppres-

sor (TVS) optimized for protection of sensitive digital

sensors used in proximity switches and industrial

control applications. The SDC36 protects the compo-

nents from over-voltages caused by electrostatic

discharge (ESD), electrical fast transients (EFT), and

tertiary lightning.

The unique design of the SDC36 incorporates two TVS

diodes in a compact SOT23 package for applications

where board space is at a premium. The single pack-

age provides protection for the I/O line and power

supply rail with high surge capabilities (2 Amps at

tp=1.2/50us) and an exceptionally low clamping

voltage of <45V.

The SDC36 replaces up to two large discrete diodes

providing the designer an easy to implement integrated

solution. The features of the SDC36 are ideal for

protection of two, three, and four wire DC high-side

proximity switches.

Applications

Mechanical Characteristics

Switches

IEC 61000-4-2 (ESD) 15kV (air), 8kV (contact)

IEC 61000-4-4 (EFT) 40A (5/50ns)

IEC 61000-4-5 (Lightning) 2A (1.2/50µs)

SOT23 (Top View)