LSP05 Datasheet PDF – Thermally Protected Varistor Module

Part Number: LSP05

Function: Thermally Protected Varistor Module

Package: Module type

Manufacturer: Littelfuse, Inc


LSP05 datasheet



A LSP05 varistor is an electronic component that is used to protect electrical circuits from voltage spikes and surges by acting as a voltage-dependent resistor. It is typically made of a semiconductor material, such as metal oxide, and has a highly nonlinear current-voltage characteristic that allows it to conduct current only when the applied voltage exceeds a certain threshold. When a voltage surge occurs, the varistor’s resistance decreases, which diverts excess current away from the sensitive components of the circuit and protects them from damage.

The Littelfuse LSP05 thermally protected Surge Protective Device is a self-protected device which is specially designed to be used in outdoor and commercial LED lighting fixtures for transient overvoltage protection.

It is constructed with Littelfuse thermally protected varistor technology. Its built-in thermal disconnect function provides additional protection to prevent catastrophic failure and fire hazard even under the extreme circumstances of varistor end-of-life or sustaining over voltage conditions.

The LSP05 SPD facilitates custom er’s product compliance to IEEE C62.41.2 Location Category C Low and US Dept of Energy MSSLC Model Spec.


1. Outdoor and Commercial LED Lighting

2. Roadway lighting

3. Traffic lighting

4. Digital signage

Other data sheets are available within the file:

LSP05120P, LSP05240LLP, LSP05240P, LSP05277P


LSP05 Datasheet PDF Download

LSP05 pdf