© 2013 Solid State Optronics • San José, CA

SP946 /H/S/TR

Rev 2.00 (11/25/2013)

001773

Page 1 of 6

SP946

Zero Cross

800V / 1.2A

AC Solid State Relay

Description

The SP946 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 zero-

volt switching window not exceeding 5V.

The SP946

provides high peak load voltage (800V+) and high input-to-

The SP946 comes in a compact 4 pin SIP package, making

it ideal for high-density board applications.

Schematic Diagram

Agency Approvals

UL/C-UL:

File # E90096

VDE:

File # 40035191 (EN 60747-5-2)

Applications



Valve Control



Solenoid Control



Home Appliances



Metering Equipment



Heating Elements



Gas Pump Control Circuitry

Absolute Maximum Ratings

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 Maximum Ratings may cause permanent damage

to the device and may adversely affect reliability.

Storage Temperature …………………………..-55 to +125°C

Operating Temperature

………………………-40 to +85°C

Continuous Input Current………………………………..50mA

Transient Input Current ………………….……………..500mA

Reverse Input Control Voltage …………..…………………5V

Input Power Dissipation ………..………………………40mW

Total Power Dissipation ……….……..…………………1.2W

Solder Temperature – Wave (10sec)……………….….260°C

Solder Temperature – IR Reflow (10sec)….…………..260°C

Ordering Information

Part Number

Description

SP946

4 pin SIP, (25/Tube)

SP946-H

Features



Zero-Volt Cross Switching



High Blocking Voltage (800V MIN)



High Transient Immunity



1.2A Maximum Continuous Current



Low Input Control Current



Long Life / High Reliability



RoHS / Pb-Free / REACH Compliant

NOTE: Suffixes listed above are not included in marking on

device for part number identification

SP946