K2000GH

Overview

The Littelfuse K2000GH is a high-voltage trigger diode, classified as a SIDAC within the thyristor family. Manufactured by Littelfuse, this component utilizes a DO-15 through-hole package for robust mounting. It operates within a temperature range of -40°C to +85°C and carries UL recognition. Key electrical specifications include a breakover voltage (VBO) ranging from 190 V to 230 V and a maximum breakover current (IBO) of 10 uA. The device supports a non-repetitive on-state current of 16.7 A or 20 A depending on specific testing conditions, with a rated repetitive off-state voltage (VDRM) of 200 V. On-state voltage is specified at 1.5 V, and the holding current maximum is 150 mA.

Feature Summary

• High-energy discharge capability suitable for triggering applications
• Symmetrical bidirectional switching characteristics for AC circuits
• Robust DO-15 axial leaded construction for reliable through-hole integration

Applications

• Triggering silicon-controlled rectifiers (SCRs) and triacs in power control circuits
• Overvoltage protection stages in industrial equipment
• Pulse generation circuits requiring precise voltage thresholds

Procurement Notes

Verify the exact breakover voltage bin required for the design, as the K2000GH series spans multiple voltage ranges. Confirm package authenticity and check for RoHS compliance status via the manufacturer's latest documentation before finalizing orders. Ensure supply chain sources provide valid traceability records for critical safety applications.

Selection Notes

Select the K2000GH when a symmetrical, high-voltage trigger device is needed with a 200 V blocking rating. Compare the 190-230 V breakover range against circuit requirements to ensure proper triggering margins. Consider the DO-15 package size for board space constraints and verify thermal management needs for the 16.7 A peak current capability.

Part Context

The K2000GH belongs to Littelfuse's Kxxxzy series of SIDACs, designed for high-energy pulse applications. These components serve as alternatives to traditional spark gaps, offering more precise triggering voltages and longer operational lifespans. The series is widely used in industries requiring reliable overvoltage protection and SCR gating.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in verified documentation. Cross-reference with other SIDACs having similar 200 V VDRM and comparable breakover voltage ranges only after verifying pinout and thermal compatibility.