S742-X
1 Form A
Solid State Relay
DESCRIPTION
The S742-X is a bi-directional, single-pole, single-throw, normally open multipurpose relay. The circuit is composed of one LED on the
input side which activates an optically coupled IC on the output - controlling the firing angle of two back-to-back SCRs. This circuit
assures no false triggering under most adverse conditions, and a tight zero-volt window not exceeding 5V. A 300-ohm input resistor in
series with the LED is also provided in this circuit.
FEATURES
APPLICATIONS
•
•
•
•
•
•
•
•
•
Inverse parallel SCR output
High transient immunity
600V blocking voltage
1.2A maximum continuous current
Low input control current
High input-to-output isolation
Solid state reliability
Zero-volt switching
300 ohm input resistor
•
•
•
•
•
•
•
•
Programmable controls
Valve control
Solenoids
Remote switching
Home appliances
Metering equipment
Heating elements
Gas pump control circuitry
OPTIONS/SUFFIXES
MAXIMUM RATINGS
PARAMETER
Storage Temperature
Operating Temperature
Continuous Input Current
Transient Input Current
Reverse Input Control
Voltage
Output Power Dissipation
UNIT
°C
°C
mA
mA
V
W
6
1.2
MIN
-55
-40
TYP
MAX
125
85
40
400
•
•
•
-H
-S
-TR
High Output Isolation
Surface Mount Option
Tape and Reel
SCHEMATIC DIAGRAM
APPROVALS
•
•
BABT CERTIFICATE #607837:
BS EN 60950, BS EN 41003, BS EN 60065
UL FILE #E90096
rev
2.0 (9/24/04)
Solid State Optronics
1.888.377.4776
www.ssousa.com
SSOUSA [ SOLID STATE OPTRONIC ]
