K2200EH70AP

Overview

The Littelfuse K2200EH70AP is a high-voltage trigger diode, classified as a Sidac within the thyristor subcategory. It operates in through-hole TO-92 packaging and belongs to the Kxxxzy series. The device features a breakover voltage (VBO) range of 205 V to 230 V with a maximum breakover current (IBO) of 10 uA. It supports an RMS on-state current (It RMS) of 1 A and a non-repetitive on-state current of 16.7 A or 20 A. The rated repetitive off-state voltage (VDRM) is 180 V, with a maximum holding current (Ih) of 150 mA. Operating temperatures span from -40 C to +85 C.

Feature Summary

• Provides bidirectional switching characteristics for overvoltage protection applications
• Designed for high-energy triggering with low breakover current requirements
• Utilizes a standard through-hole TO-92 package for easy circuit integration

Applications

• Overvoltage protection circuits requiring high-energy triggering
• Triggering devices for silicon controlled rectifiers (SCRs)
• Protection stages in AC line voltage monitoring systems

Procurement Notes

Verify the specific Littelfuse datasheet for the K2200EH70AP to confirm RoHS and REACH-SVHC compliance status before procurement. Ensure the ordering quantity aligns with the manufacturer's factory pack quantity of 2000 units. Confirm that the TO-92 through-hole package meets the mechanical constraints of the target printed circuit board design.

Selection Notes

Select this component when a breakover voltage between 205 V and 230 V is required for triggering other semiconductor devices. The 1 A RMS current rating suits moderate energy dissipation needs. Verify that the 180 V repetitive off-state voltage is sufficient for the peak operating voltage of the protected circuit without premature triggering during normal operation.

Part Context

This part belongs to the Littelfuse Kxxxzy series of high-voltage trigger diodes. These components are categorized under thyristors and function as bidirectional trigger devices. The series is designed for robust performance in protecting sensitive electronics from transient voltage spikes by providing a reliable switching threshold.

Replacement Considerations

Consult the official Littelfuse selection guide for direct replacements within the K-series. Verify that any substitute maintains the 205 V to 230 V breakover voltage range and TO-92 package compatibility to ensure electrical and mechanical interchangeability.