K0820GURP

Overview

The Littelfuse K0820GURP is a high-voltage trigger diode belonging to the SIDACtor product family, housed in a DO-15 through-hole package. It features a breakover voltage (VBO) of 90 V and a rated repetitive off-state voltage (VDRM) of 70 V. The device supports a maximum non-repetitive on-state current of 1 A and an RMS on-state current of 1 A. Operating within a temperature range of -40°C to +125°C, it exhibits a holding current (Ih) maximum of 80 mA and an on-state voltage of 1.5 V.

Feature Summary

• Bidirectional switching capability for AC line protection applications
• High surge current handling with 1 A peak rating
• Robust construction utilizing glass-passivated junction technology

Applications

• Protection of telecommunications equipment against transient overvoltages
• Triggering circuits for thyristors and triacs in power control systems
• Surge suppression in industrial control modules

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number K0820GURP with official Littelfuse documentation. Confirm RoHS compliance status and specific packaging configuration, such as cut tape or reel quantities, directly with authorized distributors to ensure supply chain integrity and adherence to project specifications.

Selection Notes

Select this component when designing circuits requiring precise voltage triggering around 90 V with moderate current handling capabilities. Ensure the application environment remains within the specified -40°C to +125°C operating range. Verify that the required hold-off voltage does not exceed the 70 V VDRM rating to prevent unintended conduction during normal operation.

Part Context

This device is part of the Kxxx0yU series from Littelfuse's Teccor brand, specialized for high-voltage triggering. It serves as a reliable alternative to discrete diac components, offering integrated performance in a standard axial leaded package suitable for robust industrial and telecom environments.

Replacement Considerations

Consult Littelfuse technical resources for verified equivalent SIDACtor devices with matching breakover voltages and current ratings. Ensure any substitute maintains compatibility with the DO-15 footprint and thermal requirements.