K1400GAP

Overview

The Littelfuse K1400GAP is a high-voltage trigger diode, classified as a SIDAC within the thyristor family. It operates in the DO-15 through-hole package and supports an operating temperature range from -40°C to +85°C. The device features a breakover voltage (VBO) between 130 V and 146 V, with a maximum turn-on current (IBO) of 10 uA. It sustains a rated repetitive off-state voltage (VDRM) of 90 V with a leakage current of 5 uA. The component handles a non-repetitive on-state current of 16.7 A or 20 A and maintains a holding current (Ih) maximum of 150 mA. It exhibits an on-state voltage of 1.5 V and carries a continuous RMS current rating (It RMS) of 1 A.

Feature Summary

• Bidirectional switching capability for AC phase control applications
• Integrated trigger mechanism eliminating external discrete components
• Robust construction suitable for harsh industrial environments

Applications

• Lighting controls requiring noise immunity
• Temperature modulation circuits
• Speed control systems for motors

Procurement Notes

Verify the specific suffix 'GAP' against the official Littelfuse datasheet to confirm exact electrical tolerances and packaging variations. Ensure the DO-15 lead form matches the target PCB layout requirements. Confirm RoHS compliance status for the specific manufacturing batch before integration into regulated equipment designs.

Selection Notes

Select this component when a bidirectional trigger device with a breakover voltage near 140 V is required. Verify that the 1 A RMS current rating meets the load demands. Consider the DO-15 package size constraints and the -40°C to +85°C operational temperature limits during circuit design.

Part Context

The K1400GAP belongs to the Kxxxzy series of high-voltage trigger diodes manufactured by Littelfuse. These devices are designed to replace discrete diac-triac combinations, simplifying assembly. The part functions as a symmetric trigger device, providing reliable gating signals for thyristors and triacs in power control circuits.

Replacement Considerations

Consult Littelfuse documentation for direct cross-reference equivalents. Generic replacements may vary in breakover voltage tolerance or peak current handling. Verify pinout compatibility and thermal characteristics before substituting.