K2401GLRP

Overview

The Littelfuse K2401GLRP is a high-voltage trigger diode (SIDAC) from the Multipulse series, designed for metal-halide and high-pressure sodium lamp ignition circuits. It operates in a DO-15 axial leaded package with a rated repetitive off-state blocking voltage (VDRM) of 180 V to 200 V minimum. The device features a breakover voltage (VBO) range of 220 V to 250 V and a maximum breakover current (IBO) of 10 uA. It supports an RMS on-state current (It RMS) of 1 A and can handle non-repetitive on-state currents up to 16.7 A or 20 A depending on specific ratings. The component maintains a holding current (Ih) maximum of 150 mA and exhibits an on-state voltage of 1.5 V. It functions within a temperature range of -40 C to +90 C.

Feature Summary

• Designed for robust operation in outdoor street and area lighting igniter applications
• Capable of producing multiple pulses per half-cycle of 50/60 Hz line voltage due to excellent commutation time
• Suitable for environments where ambient temperatures reach 90°C and junction temperatures rise to 125°C

Applications

• Metal-halide lamp ignition circuits
• High-pressure sodium lamp ignition circuits for outdoor street lighting
• Area lighting systems requiring robust solid-state switching

Procurement Notes

Verify the exact datasheet version for the K2401GLRP to confirm specific parameter tolerances, as values may vary slightly between manufacturing batches. Ensure the DO-15 through-hole package aligns with your PCB layout requirements. Confirm RoHS compliance status for your specific region before finalizing procurement decisions.

Selection Notes

Select this component when designing igniter circuits for metal-halide or high-pressure sodium lamps that require reliable multi-pulse generation. The DO-15 package is appropriate for through-hole mounting. Ensure the circuit design accounts for the 1 A RMS current rating and the specific breakover voltage range of 220 V to 250 V for proper triggering.

Part Context

The K2401GLRP belongs to Littelfuse's Multipulse SIDAC family, specifically under the Kxxx1GL series. These devices are part of the Teccor brand thyristor lineup. The 'GRP' suffix typically indicates Green/RoHS compliance and reel packaging, while 'GLRP' denotes similar attributes for this specific variant. They are distinct from standard SIDACs by their optimized commutation characteristics for high-frequency pulsing.

Replacement Considerations

Direct replacements must match the DO-15 package, 220-250 V breakover voltage, and 1 A RMS current rating. Other parts in the K2401 series or equivalent SIDACs from other manufacturers with identical electrical specifications and thermal characteristics should be considered. Verify pinout compatibility and thermal resistance.