K3601GRP

Overview

The Littelfuse K3601GRP is a high-voltage trigger diode, commonly referred to as a SIDAC, belonging to the Kxxx1G series. It features a breakover voltage (VBO) range of 270 V to 330 V and a maximum repetitive off-state voltage (VDRM) of 200 V. The device supports a non-repetitive on-state current of 16.7 A or 20 A, with a maximum holding current (IH) of 150 mA. Key electrical parameters include a maximum breakover current (IBO) of 10 µA, an on-state voltage of 1.5 V, and a maximum off-state leakage current of 5 µA at VDRM. It operates within a temperature range of -40 °C to a maximum specified limit.

Feature Summary

• Bidirectional switching capability for AC circuits
• High surge current handling capacity
• Fast response time for transient triggering

Applications

• Triggering silicon controlled rectifiers (SCRs)
• Triggering triacs in phase control circuits
• Overvoltage protection devices

Procurement Notes

Verify the specific suffix 'GRP' against the manufacturer's official documentation to confirm exact packaging and reel specifications. Ensure RoHS compliance status matches project requirements by checking the latest datasheet revision. Confirm lead times and availability directly with authorized distributors, as stock levels fluctuate. Validate that the component meets all relevant safety certifications required for the target end-use application.

Selection Notes

Select this component when a precise, symmetrical breakover voltage between 270 V and 330 V is required for gate triggering. Ensure the circuit can handle the peak on-state current without damaging the device. Consider the low leakage current for high-impedance applications. Verify that the package type and thermal characteristics suit the PCB layout and operating environment constraints.

Part Context

The K3601GRP is part of Littelfuse's Kxxx1G series of high-voltage trigger diodes. This series is designed for reliable switching in AC power control applications. The device utilizes a glass-passivated junction for stability. It serves as a discrete alternative to integrated Quadrac devices, offering flexibility in custom circuit design for lighting and motor controls.

Replacement Considerations

Check for direct cross-reference part numbers from Littelfuse or other manufacturers offering identical VBO ranges and package styles. Verify pinout compatibility and thermal resistance values before substitution. Ensure any replacement meets the same voltage and current ratings to maintain circuit performance and safety standards.