PROTECTION PRODUCTS

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PROTECTION PRODUCTS

SRDA70-4

Low Capacitance TVS Diode Array

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

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

IEC 61000-4-5 (Lightning) 1kV, 24A (8/20µs)

Description

Features

Circuit Diagram

Schematic & PIN Configuration

Revision 9/2000

Applications

Mechanical Characteristics

REF 1

I/O 1

I/O 2

I/O 3

I/O 4

REF 2

I/O 1

I/O 2

REF 1

REF 1

REF 2

REF 2

I/O 3

I/O 4

SO-8 (Top View)

RailClamps are surge rated diode arrays designed to

protect high speed data interfaces. The SRDA70-4 has

been specifically designed to protect sensitive compo-

nents which are connected to data and transmission

lines from over-voltages caused by ESD (electrostatic

discharge), EFT (electrical fast transients), and light-

ning.

The unique design of the SRDA70-4 integrates eight

surge rated, low capacitance steering diodes in a low

profile SO-8 package. During transient conditions, the

steering diodes direct the transient to either the

positive side of the power supply line or to ground. The

SRDA70-4 may be used as a stand alone device or in

conjunction with TVS diodes for enhanced protection.

The low capacitance array configuration allows the user

to protect four high speed data or I/O lines. The low

inductance construction minimizes voltage overshoot

during high current surges.