K1100E70

Overview

The Littelfuse K1100E70 is a silicon bilateral voltage triggered switch (SIDAC) in the Kxxxzy series, housed in a TO-92 package. It features a breakover voltage range of 104V to 118V and a repetitive peak off-state voltage of 90V. The device supports an on-state RMS current of 1A at 50/60Hz with a junction temperature below 125°C. Key electrical parameters include a peak non-repetitive surge current of 20A for a single cycle at 60Hz, a dynamic holding current between 10mA and 150mA, and a peak on-state voltage of 1.5V at 1A. It operates within a junction temperature range of -40°C to 125°C.

Feature Summary

• Features glass-passivated junctions for ruggedness and dependability in harsh environments.
• Switches on through a negative resistance region upon exceeding the breakover voltage point.
• Conduction continues until current is interrupted or drops below the minimum holding current.

Applications

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

Procurement Notes

Verify the specific suffix 'E70' corresponds to the TO-92 package with Type 70 lead form when ordering. Confirm RoHS compliance status as per the latest manufacturer documentation. Ensure the application circuit accounts for the specified thermal resistance values to maintain junction temperatures within the rated limits during operation.

Selection Notes

Select this component based on the required breakover voltage range of 104V to 118V. Ensure the circuit design accommodates the 90V repetitive peak off-state voltage limit. Verify that the load current does not exceed the 1A RMS rating and that surge currents remain within the 20A non-repetitive limit for single cycles at 60Hz.

Part Context

This part belongs to the Littelfuse Kxxxzy Series of Standard Bidirectional SIDACs. The series offers various breakover voltages from 79V to 330V across different packages including DO-15, DO-214, and TO-92. The K1100E70 specifically utilizes the TO-92 package configuration within this standardized product line.

Replacement Considerations

Other parts in the Kxxxzy series with similar breakover voltages may serve as substitutes if the package type matches. For example, K1100G or K1100S offer the same electrical characteristics in DO-15 or DO-214 packages respectively. Verify pinout compatibility and thermal requirements before substitution.