K2400F23

Overview

The K2400F23 is a SIDAC thyristor manufactured by Littelfuse Inc., designed for high-voltage circuit protection. It features a breakover voltage range of 220 to 250 volts and supports an on-state RMS current rating of 1 ampere. The component utilizes a TO-92 package configuration, suitable for through-hole mounting. It operates within a junction temperature range of -40°C to 125°C. This device belongs to the Kxxxzy Series, providing reliable triggering characteristics for transient suppression applications.

Feature Summary

• Provides bidirectional trigger capability for overvoltage protection in AC circuits
• Features a robust 1 A on-state RMS current handling capacity
• Designed with a standard TO-92 radial lead package for easy integration

Applications

• High voltage power supplies
• Natural gas igniters
• High-pressure Sodium lamps
• Xenon flash ignition systems

Procurement Notes

This component is classified as obsolete by the manufacturer. Availability is limited to existing stock or surplus channels rather than direct production runs. Buyers should verify the authenticity and condition of available units carefully. Distribution through authorized channels may be restricted due to the end-of-life status. Alternative sourcing strategies or equivalent replacements should be evaluated for long-term supply chain stability.

Selection Notes

Engineers selecting this part must account for its obsolete status when designing new products. The specific 220-250V breakover voltage range suits applications requiring precise triggering thresholds. The 1A current rating defines the maximum sustainable conduction level during operation. Designers should ensure the thermal management plan accommodates the specified junction temperature limits under worst-case load conditions.

Part Context

The K2400F23 is part of the broader Kxxxzy Series of SIDACs from Littelfuse. These devices are specialized thyristors intended for protecting sensitive electronics against voltage spikes. The series offers various voltage ratings to match different circuit requirements. This specific model represents a legacy solution for industrial and lighting control applications where high-voltage isolation is critical.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source documentation. Due to the obsolete status, engineers should consult Littelfuse for recommended cross-references or evaluate other SIDAC models with matching voltage and current specifications.