SJ6016LTP

Overview

The Littelfuse SJ6016LTP is a high junction temperature Silicon Controlled Rectifier (SCR) rated for 600 V repetitive peak reverse voltage and 16 A RMS on-state current. It utilizes a TO-220L isolated package with a maximum junction temperature of 150°C. The device features a low gate trigger current of 6 mA at approximately 1.5 V, enabling efficient control in phase firing circuits. Key electrical limits include a peak non-repetitive surge current of 225 A at 60 Hz, a critical di/dt of 125 A/µs, and an I²t rating of 210 A²s. Thermal resistance from junction to case is specified at 2.5 °C/W.

Feature Summary

• High thermal capability supporting operation up to 150°C junction temperature
• Electrically isolated mounting tab for simplified heat sinking and safety isolation
• Low gate sensitivity requiring minimal drive power for reliable triggering
• Robust surge handling with high peak non-repetitive current ratings

Applications

• Phase control in heating systems
• Motor speed controls
• Converters and rectifiers
• Inrush current controllers
• Capacitive discharge systems for strobe lights and gas engine ignition

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and gate sensitivity. Ensure the component meets RoHS and halogen-free requirements if mandated by the design specification. Confirm that the isolated tab configuration aligns with the thermal management strategy and electrical isolation needs of the target circuit application.

Selection Notes

Select this component when high junction temperature tolerance and electrical isolation are required. The TO-220L package facilitates direct mounting to heatsinks while maintaining isolation from the chassis. Verify that the system's worst-case voltage does not exceed the 600 V rating and that the average current remains within the 10 A limit at the expected case temperature.

Part Context

This part belongs to the SJxx16xx series of high junction temperature SCRs manufactured by Littelfuse. The series provides uni-directional switching capabilities designed for robust industrial and consumer applications. The 'L' designation specifically indicates the TO-220L isolated package variant, distinguishing it from non-isolated or surface-mount options within the same electrical family.

Replacement Considerations

Direct replacements must match the 600 V blocking voltage, 16 A current rating, and TO-220L isolated package. Verify that substitute devices offer comparable gate trigger currents and thermal resistance values to ensure identical performance in the existing circuit layout without redesigning the heat sink interface.