K1400GRP

Overview

The Littelfuse K1400GRP is a DIAC/SIDAC component designed for triggering and protection in AC power control circuits. It operates within a breakover voltage range of 140V to 170V and supports a peak current of 1A. The device utilizes a DO-214 surface-mount package, facilitating automated assembly and compact PCB layouts. It is engineered to provide reliable switching characteristics for triac and thyristor gate drive applications, ensuring stable operation in phase-control and dimming systems.

Feature Summary

• Provides bidirectional trigger capability for AC load control
• Surface-mount construction for efficient PCB integration
• Engineered for stable breakover voltage performance

Applications

• Triac and thyristor gate triggering circuits
• Lighting dimmer controls
• Motor speed regulation systems

Procurement Notes

Verify the specific manufacturer datasheet for the K1400GRP to confirm exact electrical tolerances and thermal ratings prior to design finalization. Ensure that the selected component meets all relevant safety certifications required for the target market. Cross-reference the DO-214 footprint dimensions with the PCB layout library to guarantee mechanical compatibility during assembly.

Selection Notes

Select this component when a surface-mount DIAC is required for AC phase control applications. The 140V to 170V breakover range suits standard low-voltage AC triggering needs. Consider the DO-214 package size for space-constrained designs where through-hole alternatives are impractical. Validate thermal management requirements against the expected peak pulse currents in the specific circuit topology.

Part Context

This part belongs to the Littelfuse DIAC/SIDAC family, which offers various voltage ratings and package options for AC switching applications. These components are essential for providing precise gate triggering signals to main power devices like triacs. The series supports diverse industrial and consumer electronics requiring reliable AC power modulation.

Replacement Considerations

Consult official Littelfuse substitution guides or equivalent manufacturer cross-reference lists for compatible DIACs with matching voltage ranges and package types. Verify pinout compatibility and thermal characteristics before implementing any alternative component.