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Manufacturer Part #


LH Series 350 V 0.1 A 20 Ohm 1 Channel Through Hole Solid State Relay - Dip-8

Mfr. Name: Vishay
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Technical Attributes
Attributes Table
Contact Form: DPST (2 Form A)
Output Voltage: 0V to 350V
On-state Resistance-Max: 20Ω
Contact Current-Max: 110mA
Isolation Voltage-RMS: 5300V
Package Style:  DIP-8
Mounting Method: Through Hole
Features & Applications

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.

Key Features:

  • Current limit protection
  • Isolation test voltage 5300 VRMS
  • Typical RON 20 Ω
  • 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/E


  • General telecom switching
    • On/off hook control
    • Ring delay
    • Dial pulse
    • Ground start
    • Ground fault protection
  • Instrumentation
  • Industrial control

Learn more about the LH150x Family of Solid State Relays

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