K2002G

Overview

The Littelfuse K2002G is a silicon bilateral voltage-triggered switch belonging to the Kxxxzy SIDAC series. It features a breakover voltage range of 190 V to 215 V and a repetitive peak off-state voltage of 180 V. The device supports an on-state RMS current of 1 A at 50/60 Hz and can withstand a peak non-repetitive surge current of 20 A for a single cycle at 60 Hz. Packaged in a DO-15 through-hole configuration, it operates within a junction temperature range of -40°C to 125°C and a storage temperature range of -40°C to 150°C.

Feature Summary

• Bilateral switching capability with glass-passivated junctions for ruggedness
• Two-series die circuit function providing specific triggering characteristics
• RoHS compliant construction with matte tin plated terminals

Applications

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

Procurement Notes

Verify the component marking code matches the datasheet specifications for the K2002G part number. Confirm that the DO-15 package dimensions align with the target PCB layout requirements. Ensure the selected supplier provides documentation confirming RoHS compliance and material declarations as specified by Littelfuse standards.

Selection Notes

Select this component when a breakover voltage between 190 V and 215 V is required for AC circuit triggering. The two-series die configuration distinguishes it from standard single-die variants. Ensure the application current does not exceed the 1 A RMS rating and verify thermal management capabilities for the intended operating environment.

Part Context

This component is part of the Kxxxzy Standard Bidirectional SIDAC family manufactured by Littelfuse. The '2' in the model suffix indicates a two-series die circuit function, while the 'G' denotes the DO-15 axial leaded package. This series is designed for high-voltage triggering applications requiring reliable switching behavior.

Replacement Considerations

Compatible substitutes include other K2002G units or equivalent SIDACs with matching 190-215 V breakover voltage and DO-15 packaging. Verify that alternative parts meet the same 1 A RMS current rating and hold current specifications.