© 2003 TELEDYNE RELAYS

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

CA 1

CA\042003\Q1

1A, 250 Vrms Optically Isolated

AC Solid-State Relay

FEATURES/BENEFITS

• Optical Isolation: Isolates control

elements from load transients.

• Low Zero Cross Window: Minimizes

switching transients and lowers

EMI. Ideal as an SCR or TRIAC

driver.

• Fully Floating Output: Eliminates

ground potential loops

• Meets MIL-STD-704 Requirements

for Relay Outputs: Allows relay to

be used in avionic systems without

external transient protection.

• Buffered Control: Relay can be

controlled directly from TTL or

CMOS logic circuits.

• Low-Profile Ceramic DIP Package:

Allows high-density packaging for

through-hole and surface-mount

applications.

DESCRIPTION

The Series CA is designed for printed

circuit board mounting in AC power

switching applications. The relay is

rated for 1A at 250 Vrms from 40 to

440 Hz for resistive and reactive loads

with power factors as low as 0.2.

Inverse parallel SCRs are configured

for zero voltage turn on. The patented

circuit design assures the lowest

possible

EMI

by

reducing

commutation spikes. Optical isolation

allows a floating output with 1200 Vac

isolation between the control (input)

and load (output). This allows low

level logic circuits to safely control AC

loads.The low profile ceramic DIP

package is hermetically sealed to

withstand

severe

environmental

conditions encountered in military and

aerospace applications. This relay is

available with conventional leads for

through-hole PCB mounting or with

gull wing leads for surface mount

applications.

Series CA

Part Number* Relay Description

CA00HD

1A, 250 Vrms, AC Solid-State Relay

with dual in-line terminals.

SCA00HD

1A, 250 Vrms, AC Solid-State Relay

with gull wing surface mount terminals.

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

The W suffix denotes parameters tested to Teledyne specifications.

ELECTRICAL SPECIFICATIONS

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

INPUT (CONTROL) CHARACTERISTICS

2 Terminal Configuration (See Fig. 1)

Min

Max

Units

Input Voltage

3.8

32

Vdc

Input Current (See Figure 1)

V

13

15

mA

V

13

18

mA

Turn-Off Voltage (Guaranteed Off)

1.5

Vdc

Turn-On Voltage (Guaranteed On)

3.8

Vdc

Reverse Voltage Protection

-32

Vdc

BLOCK DIAGRAM