SK008R

Overview

The Littelfuse SK008R is a silicon-controlled rectifier (SCR) designed for high-voltage power control applications. It features an 8 A RMS on-state current and a 1 kV rated repetitive off-state voltage. The device is housed in a TO-220-2 through-hole package, facilitating robust thermal management and mechanical mounting. Key electrical characteristics include a maximum gate trigger voltage of 1.5 V and a gate trigger current of 15 mA. The component operates within a junction temperature range of -40°C to +125°C. It exhibits a forward voltage drop of 1.6 V at full load and maintains a low off-state leakage current of 20 µA under rated voltage conditions.

Feature Summary

• High voltage blocking capability with 1 kV rating for industrial power circuits
• Robust thermal performance enabled by the TO-220-2 leaded package design
• Standard gate triggering requirements compatible with common control logic

Applications

• Industrial motor speed control systems
• Solid-state relay output stages
• AC power switching modules

Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or certified supply chain partners. Confirm RoHS compliance status via official datasheets prior to integration. Ensure storage conditions maintain device integrity against moisture sensitivity. Validate package markings match the specific SK008R designation to prevent substitution errors during assembly processes.

Selection Notes

Select this component when a through-hole SCR with 1 kV blocking voltage and 8 A continuous current capacity is required. Compare gate trigger specifications against available drive circuitry to ensure reliable turn-on. Evaluate thermal resistance requirements of the TO-220-2 package against the expected heat dissipation in the target application environment.

Part Context

The SK008R belongs to the Littelfuse SK series of standard recovery SCRs. This series provides reliable phase control solutions for various power electronics designs. The component utilizes silicon planar technology to ensure stable performance across wide temperature ranges and harsh operating conditions typical in industrial environments.

Replacement Considerations

Consult official Littelfuse documentation for verified cross-reference part numbers. Verify pinout compatibility and thermal characteristics before substituting with alternative manufacturers' devices to ensure circuit functionality remains intact.