K2500GURP

Overview

The Littelfuse K2500GURP is a high-energy SIDAC trigger diode designed for robust overvoltage protection in electronic circuits. It operates within the DO-204AC (DO-15) axial through-hole package and features a bidirectional switching characteristic with a breakdown voltage range of 240 V to 260 V. The device supports a continuous RMS current rating of 1 A and can withstand non-repetitive peak currents up to 20 A. It functions reliably across an extended temperature range, from -40°C to +150°C junction temperature, ensuring stability in demanding industrial environments.

Feature Summary

• Bidirectional triggering capability provides symmetrical protection against transient voltage surges in AC and DC applications.
• High energy handling capacity allows effective suppression of high-current transients without component failure.
• Robust thermal performance ensures stable operation at elevated junction temperatures up to 150°C.

Applications

• Protection of sensitive semiconductor devices in high-voltage power supply circuits
• Triggering mechanisms for silicon-controlled rectifiers (SCRs) and triacs in motor control systems
• Surge protection stages in industrial equipment exposed to electrical noise and transients

Procurement Notes

Verify the specific suffix 'URP' corresponds to the tape-and-reel packaging configuration when ordering. Confirm that the 240 V to 260 V breakdown voltage range aligns with the target circuit's protection threshold. Ensure the DO-204AC axial lead form factor fits the designated PCB footprint. Cross-reference the manufacturer's latest datasheet for any updates on RoHS compliance status or recommended soldering profiles to maintain component integrity during assembly.

Selection Notes

Select this component when a bidirectional trigger device with a 240 V to 260 V activation threshold is required. The 1 A RMS current rating suits moderate load applications, while the 20 A peak capability handles significant surge events. Consider the DO-204AC package for through-hole mounting requirements. Evaluate the 150°C maximum junction temperature against the ambient operating conditions to ensure adequate thermal margin for long-term reliability in high-stress environments.

Part Context

This part belongs to the Littelfuse SIDAC series, specialized for high-energy transient suppression. The K2500GURP variant specifically denotes the reel-packaged version of the standard K2500G device. It shares core electrical characteristics with other members of the K2500 family but differs in shipping configuration. The series is engineered for reliable gate triggering and overvoltage clamping in thyristor-based protection schemes.

Replacement Considerations

The K2500G is the base component for this reel-packaged variant. Verify compatibility with other SIDAC devices offering identical 240 V to 260 V breakdown ranges and DO-15 packages before substitution.