© 2002 TELEDYNE RELAYS

(800) 284-7007 • www.teledynerelays.com

CD 41

CD\072002\Q1

2A, 60Vdc Optically Isolated, Short-Circuit Protected

DC Solid-State Relay

FEATURES

•Available with short circuit/current

overload protection

• Available with input status monitor

• TTL and CMOS compatible control

• Low ON resistance power FET output

• Fast switching speed

• Meets 28 Vdc system requirements of

MIL-STD-704

• Optical isolation

• Low profile hermetic ceramic package

• Built and tested to the requirements of

MIL-PRF-28750

DESCRIPTION

This all solid-state relay utilizes the

latest technology to provide a low ON

resistance. The control (input) and load

(output) are optically isolated to protect

input logic circuits from voltage and

current transients which can occur on

the output supply. The optical isolation

also provides a full floating output, thus

allowing the load to be connected to

either output terminal. The control circuit

is buffered to enable the relay to be

driven directly from standard CMOS or

open

collector

TTL

logic

circuits.

Available options include short circuit

and current overload protection, which

provides complete protection for both

the relay and the system wiring. This

feature not only provides protection

should a short or overload occur while

the relay is on, but will also provide

protection should the relay be switched

into a short. In either case, the relay will

sense the short circuit condition and

then block it indefinitely until the short is

removed and the unit is reset by cycling

the input control. The second option is a

status output, which provides a built-in-

test function. This feature checks the

input circuitry of the relay and provides a

logic (0) low when the input circuit is

turned on and operational. Both options

are

available

either

together

or

separately as standard features.

Series CD

Part*

DESC Drawing

Relay Description

Number

Number

CD00CFW

Basic Solid-State Relay (SSR)

CD00CFY

90091-008

CD01CFW

SSR with Control Status

CD01CFY

90091-006

CD20CDW

SSR with Short-Circuit Protection

CD20CDY

90091-004

CD21CDW

SSR with Short-Circuit Protection

CD21CDY

90091-002

and Control Status

* The Y suffix denotes parameters tested to MIL-PRF-28750 specifications.

The W suffix denotes parameters tested to Teledyne specifications.

For surface mount (SMT), add “S” prefix to part number. Example:

SCD00CFW

ELECTRICAL SPECIFICATIONS

(-55°C TO +105°C UNLESS OTHERWISE NOTED)

INPUT (CONTROL) SPECIFICATION

When used in 2 terminal configuration

(TTL or direct control) (See Fig. 1)

Min

Typ

Max Units

Input Current @ V

14

15

mA

Turn-Off Voltage (Guaranteed Off)

1.5

Vdc

Turn-On Voltage (Guaranteed On)

3.8

Vdc

Reverse Voltage Protection

-32

Vdc

Input Supply Range (See Note 4)

3.8

6

Vdc

INPUT (CONTROL) SPECIFICATION

When used in 3 terminal configuration

(CMOS or open collector TTL) (See Fig. 1)

Min

Typ

Max Units

Control Current

V

250

µA

V

1

mA

Control Voltage Range

0

18

Vdc

Bias Supply Voltage (See Note 4)

3.8

6

Vdc

Bias Supply Current @ V

14

15

mA

Turn-Off Voltage (Guaranteed Off)

3.2

Vdc

Turn-On Voltage (Guaranteed On)

0.3

Vdc