K2200EH70RP3

Overview

The Littelfuse K2200EH70RP3 is a high-energy Sidac switch designed for gas ignition applications. It features a breakover voltage range of 205 V to 230 V and a maximum breakover current of 10 µA. The device supports a non-repetitive on-state current of up to 20 A and an RMS current rating of 1 A. It operates within a temperature range of -40 °C to +85 °C and utilizes a TO-92 through-hole package.

Feature Summary

• High energy switching capability optimized for gas ignition systems
• Robust pulse current handling suitable for low repetition rate operations
• Standard radial lead construction for reliable through-hole integration

Applications

• Gas ignition systems requiring high current pulses
• Trigger circuits for thyristors in industrial appliances
• Overvoltage protection in high-voltage DC circuits

Procurement Notes

Verify the specific ordering suffix, such as RP3, which indicates tape and reel packaging, against your assembly requirements. Confirm RoHS compliance status and REACH-SVHC declarations with the manufacturer or authorized distributor prior to procurement. Ensure the selected variant matches the required breakover voltage tolerance for your circuit design.

Selection Notes

Select this component when high peak current delivery is necessary for igniting gas mixtures at low frequencies. The TO-92 package suits space-constrained designs requiring radial leads. Evaluate the 205 V to 230 V breakover window to ensure compatibility with the trigger voltage requirements of the downstream thyristor or spark gap.

Part Context

This part belongs to the Kxxx0yH series of Sidacs from Littelfuse. This series represents a higher energy variant compared to standard models, specifically engineered to deliver larger current pulses. It serves as a critical triggering element in systems where reliable ignition under varying load conditions is essential.

Replacement Considerations

Cross-reference with other K-series Sidacs from Littelfuse that match the 205-230V breakover range and TO-92 package. Verify that substitute components meet the same 1A RMS and 20A peak current specifications to maintain system performance.