The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
S109
Zero Cross 800V / 0.8A AC Solid State Relay
Description
The S109 is a bi-directional, single-pole, single-throw, normally open multipurpose solid-state relay. The circuit is composed of one input IR LED which activates an optically coupled IC on the output that controls the firing angle of two back-to-back SCRs. This circuit assures no false triggering under most adverse conditions, and a tight zerovolt switching window not exceeding 5V. The S109 provides high peak load voltage (800V+) and high input-tooutput isolation voltage (up to 5kVRMS).
The S109 comes in a compact 6 pin DIP package, making it ideal for high-density board applications.