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Vishay LH1525 Solid-State Relay (SSR)

Vishay LH1525 Solid-State Relays (SSRs) are single-pole single-throw (SPST) normally open switch (1 Form A) designed to replace electromechanical relays in many applications. The Vishay LH1525 SSR is constructed using a Gallium Aluminum Arsenide (GaAIAs) LED for actuation control and MOSFETs for the switching output. This device employs current-limiting circuitry and can be configured for AC-DC or DC-only operation.

The LH1525 requires a minimal amount of LED drive current to operate, making it ideal for battery-powered applications or in applications where power management is a concern. The LH1525 is ideal for use in instrumentation applications where fast switching speed is critical. This device can also be used in telecom applications where its robust current-limit circuitry will protect the relay from lightning and other fault conditions commonly present on telephone lines.

The Vishay LH1525 Solid-State Relay is available in DIP-6 and SMD-6 packages and is RoHS compliant, Pb-free, and halogen-free.

Features

  • Low operating current
  • High-speed operation
  • 5300VRMS isolation test voltage
  • Current limit protection
  • AC-DC or DC-only operation
  • Clean, bounce-free switching
  • Low power consumption
  • Surface mountable
  • -40°C to +85°C ambient temperature range (Tamb)
  • DIP-6 and SMD-6 package options
  • RoHS-compliant, lead-free, halogen-free
  • UL, cUL, and VDE approved

Applications

  • General telecom switching
  • Battery-powered switching applications
  • Industrial controls
  • Programmable controllers
  • Instrumentation

Application Notes

Pin Configuration

Block Diagram - Vishay LH1525 Solid-State Relay (SSR)

Package Outline (DIP-6)

Mechanical Drawing - Vishay LH1525 Solid-State Relay (SSR)

Package Outline (SMD-6)

Mechanical Drawing - Vishay LH1525 Solid-State Relay (SSR)
Published: 2020-11-23 | Updated: 2025-01-06