LH1503A 2 Form A Solid-State Relay

The LH1503 relays are DPST normally open switches (2 form A) that can replace electromechanical relays in many applications. The relays are constructed using a GaAlAs LED for actuation control and an integrated monolithic die for the switch output.

The die, fabricated in a high voltage dielectrically isolated technology, is comprised of a photodiode array, switch control circuity, and DMOS switches. In addition, these relays employ current limiting circuity, enabling them to pass lightning surge testing as per ANSI/TIA-968-B and other regulatory voltage surge requirements when overvoltage protection is provided.

FEATURES

• Current limit protection

• Isolation test voltage 5300 VRMS

• Typical RON 20 

• Load voltage 350 V

• Load current 110 mA • High surge capability

• Clean bounce free switching • Low power consumption

• High reliability monolithic receptor

• SMD lead available on tape and reel

• Compliant to RoHS Directive 2002/95/EC and in accordance to WEEE 2002/96/EC

APPLICATIONS

• General telecom switching

- On/off hook control - Ring delay

- Dial pulse - Ground start

- Ground fault protection

• Instrumentation

• Industrial controls