K1050GURP

Overview

The Littelfuse K1050GURP is a high-voltage trigger diode, classified as a SIDAC within the Teccor family. It utilizes a DO-15 through-hole package for robust circuit integration. The device features a breakover voltage (VBO) of 110 V and a rated repetitive off-state voltage (VDRM) of 90 V. It supports an RMS on-state current (It RMS) of 1 A with a non-repetitive peak on-state current of 1 A. The component operates within a temperature range of -40°C to +125°C, maintaining a maximum holding current of 80 mA and a low on-state voltage of 1.5 V.

Feature Summary

• Bidirectional symmetrical switching capability for AC circuits
• High voltage blocking in the off-state with rapid transition to low-resistance on-state
• Robust thermal performance suitable for industrial environments

Applications

• Triggering silicon-controlled rectifiers (SCRs) and triacs
• Overvoltage protection circuits
• Timing circuits requiring precise voltage thresholds

Procurement Notes

Verify the specific suffix 'URP' against the manufacturer's latest documentation to confirm reel packaging and RoHS compliance status. Ensure the DO-15 lead configuration matches the target PCB footprint. Cross-reference the Littelfuse Teccor product catalog for any recent design changes or obsolescence notices prior to finalizing procurement orders.

Selection Notes

Select this component when a bidirectional trigger device with a 110 V breakover threshold is required for through-hole applications. Verify that the 1 A RMS current rating meets the load requirements. Consider the DO-214AC surface-mount variant if space constraints preclude the use of axial leads. Confirm operating temperature limits align with the system environment.

Part Context

This part belongs to the Kxxx0yU series of high-voltage trigger diodes manufactured by Littelfuse under the Teccor brand. These devices are designed for reliable switching in power control applications. The K1050GURP specifically denotes the DO-15 axial leaded package version, distinguishing it from surface-mount alternatives within the same electrical specification family.

Replacement Considerations

Consult Littelfuse official substitution guides for equivalent SIDAC devices. Surface-mount equivalents such as the K1050S1URP share identical electrical characteristics but utilize a DO-214AC package. Verify pin compatibility and mechanical fit before implementing any cross-package replacements.