K1300E70RP2

Overview

The Littelfuse K1300E70RP2 is a silicon bilateral voltage-triggered switch (SIDAC) from the Kxxxzy series, designed for AC circuit applications. It features a breakover voltage range of 120V to 138V and a repetitive peak off-state voltage of 90V. The component supports an on-state RMS current of 1A at 50/60Hz with a junction temperature below 125°C. It utilizes a TO-92 package with Type 70 lead form, offering thermal resistance of 35°C/W junction-to-case and 95°C/W junction-to-ambient. The device operates within a junction temperature range of -40°C to 125°C and includes glass-passivated junctions for ruggedness.

Feature Summary

• Silicon bilateral voltage triggered switch with negative resistance region switching
• Glass-passivated junctions for environmental ruggedness
• RoHS compliant construction

Applications

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

Procurement Notes

Verify the specific ordering suffix E70RP2 confirms the TO-92 package type and reel packaging format. Ensure the breakover voltage requirements align with the 120V to 138V specification range. Confirm that the application environment stays within the specified thermal limits and does not exceed the 1A RMS current rating during operation.

Selection Notes

Select this component when a bidirectional trigger device with a 120V to 138V breakover threshold is required. The TO-92 package is suitable for through-hole mounting where space allows. Consider the 1A RMS current capability and 90V blocking voltage when designing circuits involving capacitive charging or lamp ballasts. Ensure the di/dt and dv/dt ratings are sufficient for the specific load dynamics.

Part Context

This part belongs to the Littelfuse Kxxxzy Standard Bidirectional SIDAC family. The '130' indicates the voltage class, 'E' denotes the TO-92 package, '70' specifies the lead form, and 'RP2' indicates reel packaging. Other variants in the series offer different voltage thresholds and package options like DO-15 or DO-214.

Replacement Considerations

Compatible substitutes include other K1300y variants with different packages such as K1300G (DO-15) or K1300S (DO-214), provided the mechanical footprint can be adapted. Ensure any replacement maintains the same VBO range and current ratings.