K0900GRP

Overview

The Littelfuse K0900GRP is a high-voltage trigger diode, classified as a SIDAC within the thyristor product category. It operates in the through-hole DO-15 package and belongs to the Kxxxzy series. The device features a rated repetitive off-state voltage (VDRM) of 70 V with an operating temperature range from -40°C to +85°C. Electrical characteristics include a breakover voltage (VBO) ranging from 79 V to 97 V and a maximum breakover current (IBO) of 10 µA. The component supports an RMS on-state current (It RMS) of 1 A and a non-repetitive on-state current of up to 20 A. It exhibits a holding current (Ih) maximum of 150 mA, an on-state voltage of 1.5 V, and a leakage current of 5 µA at VDRM.

Feature Summary

• High-voltage triggering capability for precise circuit activation
• Robust construction suitable for through-hole mounting applications
• Symmetrical bidirectional switching behavior for AC signal processing

Applications

• Triggering silicon-controlled rectifiers (SCRs) and triacs
• Overvoltage protection circuits requiring specific breakdown thresholds
• Pulse generation and timing circuits

Procurement Notes

Verify the exact suffix 'GRP' against official Littelfuse documentation to confirm packaging or tape-and-reel specifications differ from standard bulk units. Ensure RoHS compliance status is confirmed via the manufacturer's latest datasheet before integration into regulated assemblies.

Selection Notes

Select this component when a symmetrical bidirectional trigger device with a 70 V rating is required. Confirm that the 79 V to 97 V breakover voltage range aligns with the target circuit's sensitivity. Verify that the DO-15 package dimensions fit the available PCB space and that the 1 A RMS current rating meets the load requirements.

Part Context

The K0900GRP belongs to the Littelfuse K-series of high-voltage trigger diodes. These devices are designed for reliable switching in high-voltage environments. The part number indicates a specific variant within the broader Kxxxzy family, sharing core electrical characteristics with other members while potentially differing in packaging or testing criteria.

Replacement Considerations

Consult Littelfuse cross-reference guides for direct equivalents. Generic replacements must match the 70 V VDRM, 79-97 V VBO range, and DO-15 package. Verify thermal and current ratings before substitution.