K2201GRP

Overview

The Littelfuse K2201GRP is a Multipulse SIDAC, a bidirectional voltage-triggered switch designed for high-energy lamp ignition applications. It operates within a breakover voltage range of 205 V to 230 V and supports a maximum repetitive off-state voltage of 180 V. The device handles non-repetitive on-state currents up to 20 A and maintains an RMS current rating of 1 A. Packaged in a DO-15 through-hole configuration, it functions reliably across a temperature range of -40°C to +85°C, with junction temperatures reaching 125°C in specific igniter circuit conditions.

Feature Summary

• Multipulse capability for robust operation in metal halide and high-pressure sodium lamp ignition circuits
• Designed for high ambient temperatures up to 90°C with junction temperatures reaching 125°C
• Bidirectional voltage switching characteristics suitable for AC line applications

Applications

• Metal halide lamp ignition circuits
• High pressure sodium lamp ignition circuits for outdoor street and area lighting
• Lamp igniter circuits requiring high thermal stability

Procurement Notes

Verify the exact suffix GRP against official Littelfuse documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for DO-15 or equivalent through-hole mounting. Confirm RoHS compliance status via the manufacturer's latest datasheet before integration into regulated assemblies.

Selection Notes

Select this component when designing igniter circuits for HID lamps that require high surge current handling and thermal resilience. The 220V nominal breakover voltage suits standard mains-operated lighting systems. Consider the 1A RMS rating for continuous load requirements and ensure the circuit can dissipate heat to maintain junction temperatures below 125°C during prolonged operation.

Part Context

The K2201GRP belongs to the Teccor brand Multipulse SIDAC family from Littelfuse. This series is engineered specifically for demanding lighting applications where standard trigger devices may fail due to high thermal stress or repeated surge events. It complements other SIDAC variants like the K2201G by offering enhanced durability for outdoor and industrial lighting environments.

Replacement Considerations

Direct substitutes include the K2201G for through-hole applications. Verify electrical parameters such as breakover voltage tolerance and holding current to ensure functional equivalence in the specific igniter circuit design.