S742
1 Form A
DESCRIPTION
The S742 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.
FEATURES
APPLICATIONS
Zero-Volt Cross Switching
High transient immunity
600V blocking voltage
Valve control
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Solenoids
Home appliances
Metering equipment
Heating elements
Gas pump control circuitry
1.2A maximum continuous current
Low input control current
High input-to-output isolation
Solid state reliability
OPTIONS/SUFFIXES*
ABSOLUTE MAXIMUM RATINGS*
PARAMETER
Storage Temperature
Operating Temperature
Continuous Input Current
Transient Input Current
UNIT
°C
MIN
-55
-40
TYP
MAX
125
85
-H
-S
High Output Isolation
Surface Mount Option
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-TR Tape and Reel
°C
NOTE: Suffixes listed above are not included in marking on
device for part number identification.
mA
mA
V
40
400
SCHEMATIC DIAGRAM
Reverse Input Control
Voltage
6
Output Power Dissipation
W
1.2
*The values indicated are absolute stress ratings. Functional operation of the
device is not implied at these or any conditions in excess of those defined in
electrical characteristics section of this document. Exposure to Absolute
Ratings may cause permanent damage to the device and may adversely
affect reliability.
APPROVALS
BABT CERTIFICATE #607837:
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BS EN 60950, BS EN 41003, BS EN 60065
UL FILE #E90096
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© 2004 Solid State Optronics • San José, CA
www.ssousa.com • +1.408.293.4600
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S742
rev 1.40 (10/25/2004)