83820| Datasheet

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LH1521BAC/ BACTR/ BB
Vishay Semiconductors

Dual 1 Form B Solid State Relay
DIP SMD

Features
Dual Channel (LH1501) Isolation test Voltage 3750 VRMS Typical RON 20 e3 Load Voltage 350 V Load Current 150 mA High Surge Capability Clean Bounce Free Switching Low Power Consumption SMD Lead Available on Tape and Reel Lead (Pb)-free component Component in accordance to RoHS 2002/95/EC and WEEE 2002/96/EC

S1 8 S1 S1'

S1' S2 7 6

S2' 5

S2
i179046

S2' 1 2 3 4

Description
The LH1521 dual 1 Form B relays are SPST normally closed switches that can replace electromechanical relays in many applications. The relays are constructed as a multi chip hybrid device. Actuation control is via an Infrared LED. The output switch is a combination of a photodiode array with MOSFET switches and control circuity.

Agency Approvals
UL1577, File No. E52744 System Code H or J, Double Protection CSA - Certification 093751

Applications
General Telecom Switching - On/off Hook Control - Ring Delay - Dial Pulse - Ground Start - Ground Fault Protection Instrumentation Industrial Controls

Order Information
Part LH1521BAC LH1521BACTR LH1521BB Remarks Tubes, SMD-8 Tape and Reel, SMD-8 Tubes, DIP-8

Document Number 83820 Rev. 1.2, 01-Dec-05

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