SJ6012L2TP

Overview

The Littelfuse SJ6012L2TP is a high junction temperature Silicon Controlled Rectifier (SCR) from the SJxx12xx series, housed in an isolated TO-220L package. It features a peak non-repetitive blocking voltage of 600 V and an RMS on-state current rating of 12 A at a case temperature of 110°C. The device has a maximum average on-state current of 7.6 A under the same thermal conditions. Gate trigger characteristics include a maximum gate trigger current (IGT) of 10 mA and a maximum gate trigger voltage (VGT) of 1.5 V. It supports a peak non-repetitive surge current of 120 A at 60 Hz and operates within a junction temperature range of -40°C to 150°C.

Feature Summary

• Halogen-free and RoHS compliant construction
• High junction temperature capability up to 150°C
• Internally constructed isolated package for ease of heat sinking and high isolation voltage
• Low gate current trigger level for efficient control

Applications

• Capacitive discharge systems for strobe lights, nailers, staplers, and gas engine ignition
• Phase control in heating applications
• Motor speed controls and converters/rectifiers
• Inrush current control and AC to DC applications
• Power tools and home appliance controls

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and gate sensitivity. Confirm that the isolated TO-220L variant meets the required isolation voltage specifications for the intended circuit design. Ensure compliance with local regulatory standards such as UL recognition before finalizing procurement decisions.

Selection Notes

Select this component when uni-directional switching requires high junction temperature tolerance and electrical isolation between the mounting tab and internal terminals. The 10 mA gate sensitivity offers a balance between noise immunity and drive power requirements. Verify thermal management capabilities to ensure the case temperature remains within the rated limits for the desired RMS current load.

Part Context

This part belongs to the SJxx12xx series of 12 Amp High Junction Temperature SCRs designed for robust performance in demanding environments. The series includes various voltage ratings and package options, with the 'L' suffix specifically denoting the isolated TO-220L configuration. This family is engineered to replace standard SCRs where higher thermal resilience and isolation are critical for system reliability.

Replacement Considerations

Direct replacements must match the 600 V blocking voltage, 12 A RMS current, and isolated TO-220L package. Verify that substitute devices offer comparable gate trigger currents and holding currents to ensure proper circuit operation without modification.