K0900GURP

Overview

The Littelfuse K0900GURP 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 a continuous RMS current of 1 A. The device features a rated repetitive off-state voltage (VDRM) of 70 V with a maximum leakage current of 5 uA at this rating. Breakover voltage (VBO) ranges from 79 V to 97 V, triggered by a maximum breakover current (IBO) of 10 uA. Upon triggering, the on-state voltage drops to 1.5 V, and the holding current (Ih) maximum is 150 mA. Non-repetitive on-state current ratings are specified at 16.7 A or 20 A depending on pulse conditions. The component functions reliably across an operating temperature range of -40°C to +85°C.

Feature Summary

• Symmetrical bidirectional switching capability for AC circuit protection
• High surge current handling capacity for transient suppression
• Robust thermal stability across wide industrial temperature ranges

Applications

• Overvoltage protection for sensitive electronic circuits
• Triggering elements for silicon-controlled rectifiers (SCRs)
• Surge protection devices in power supply inputs

Procurement Notes

Verify the specific suffix URP against official Littelfuse documentation to confirm tape-and-reel packaging configuration. Ensure the ordered part matches the required RoHS compliance status and lead-free soldering specifications. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring precise high-voltage triggering thresholds between 79 V and 97 V. The 1 A RMS current rating suits moderate power applications, while the DO-15 package facilitates easy through-hole mounting. Consider the 150 mA holding current limit to ensure reliable latching behavior in the intended load environment.

Part Context

This part belongs to the Kxxxzy series of high-voltage trigger diodes manufactured by Littelfuse. These devices are categorized under semiconductor thyristors and serve as specialized circuit protection components. The K0900GURP variant specifically denotes the standard K0900G electrical characteristics with a particular packaging or reel configuration indicated by the URP suffix.

Replacement Considerations

Consult Littelfuse official substitution guides for compatible SIDAC equivalents. Verify that any alternative part maintains identical VBO ranges, ITOFF limits, and DO-15 mechanical dimensions to ensure direct pin-compatible replacement without circuit redesign.