K2000E70RP2

Overview

The Littelfuse K2000E70RP2 is a standard bidirectional SIDAC from the Kxxxzy series, housed in a TO-92 package. It functions as a silicon bilateral voltage-triggered switch with glass-passivated junctions. The device triggers when applied voltage exceeds its breakover point, switching to a low on-state voltage until current drops below the holding threshold. Key electrical parameters include a breakover voltage range of 190V to 215V and a repetitive peak off-state voltage of 180V. It supports an on-state RMS current of 1A at 50/60Hz and features a dynamic holding current between 10mA and 150mA. The component operates within a junction temperature range of -40°C to 125°C.

Feature Summary

• Silicon bilateral voltage triggered switch utilizing glass-passivated junctions for ruggedness
• Bidirectional conduction characteristics suitable for AC circuit applications
• RoHS compliant construction with matte tin plated leads

Applications

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

Procurement Notes

Verify the specific ordering suffix RP2 corresponds to the reel pack configuration containing 2000 units per base quantity. Confirm that the TO-92 Type 70 lead form matches the required PCB footprint dimensions. Ensure compliance with RoHS directives if applicable to the target assembly environment. Cross-reference the manufacturer datasheet revision date against production requirements to guarantee parameter stability.

Selection Notes

Select this component based on the required breakover voltage range of 190V to 215V for the specific triggering application. Evaluate the thermal resistance characteristics, noting the junction-to-ambient rating of 95°C/W for the TO-92 package. Consider the maximum allowable case temperature curves relative to the expected RMS on-state current load. Verify that the repetitive peak off-state voltage of 180V provides sufficient margin for the operating circuit conditions.

Part Context

This part belongs to the Teccor brand Kxxxzy Standard Bidirectional SIDAC family manufactured by Littelfuse. The series offers various breakover voltages ranging from 79V to 330V across different package options including DO-15, DO-214, and TO-92. The K2000 variant specifically targets higher voltage triggering needs within this standardized thyristor lineup designed for reliable switching in harsh environments.

Replacement Considerations

Compatible substitutes within the same series include K2000G (DO-15), K2000S (DO-214), and K2000E70 (TO-92 bulk). These alternatives share identical electrical specifications but differ in physical packaging and mounting style. Verify mechanical fit and lead configuration before substitution.