SJ6012N1TP

Overview

The SJ6012N1TP is a high junction temperature Silicon Controlled Rectifier (SCR) from the SJxx12xx series, manufactured by Littelfuse. It features a 600 V repetitive peak off-state voltage and an RMS on-state current of 12 A at a case temperature of 135°C. The device utilizes a TO-263AB (D²Pak) surface-mount package with three terminals: Anode, Cathode, and Gate. It has a maximum gate trigger current of 6 mA and a typical gate trigger voltage of 1.5 V. The component 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

• High thermal capability with a maximum junction temperature of 150°C for robust operation in demanding environments.
• Low gate sensitivity requiring a maximum trigger current of 6 mA for efficient control circuitry.
• Internally constructed isolated package design facilitating ease of heat sinking and providing high isolation voltage.
• Compliant with RoHS standards and halogen-free manufacturing requirements.

Applications

• Capacitive discharge systems for strobe lights, nailers, staplers, and gas engine ignition.
• Phase control applications in heating systems and motor speed controls.
• Converters, rectifiers, and inrush current control circuits.
• AC to DC conversion and low power AC motor controls for home appliances.

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and gate sensitivity parameters. Ensure that the procurement documentation explicitly states compliance with RoHS directives and halogen-free material requirements. Confirm the tube or reel packaging quantity matches the project needs before finalizing orders.

Selection Notes

Select this component when uni-directional switching is required with high surge tolerance up to 120 A. The 6 mA gate sensitivity allows for direct interfacing with standard logic outputs without excessive drive current. Ensure the application maintains the case temperature below 135°C to sustain the rated 12 A RMS current. Consider the TO-263 package dimensions for PCB layout constraints.

Part Context

This part belongs to the SJxx12xx series of 12 Amp High Junction Temperature SCRs. The series offers various voltage ratings (400V/600V) and gate sensitivities (6mA, 10mA, 20mA) across multiple packages including TO-220L, TO-220R, TO-263, TO-251, and TO-252. The 'N' designation specifically identifies the TO-263 surface-mount variant.

Replacement Considerations

Cross-reference with other SJxx12Nx parts for different voltage ratings if system voltage changes. Verify pinout compatibility with TO-263 D²Pak packages from other manufacturers if sourcing alternatives. Ensure replacement devices meet the same 150°C junction temperature rating and 120 A surge capability.

FAQ

What is the maximum gate trigger current for the SJ6012N1TP?

The maximum gate trigger current (IGT) is 6 mA.

What is the peak non-repetitive surge current rating?

The device can withstand a peak non-repetitive surge current of 120 A at 60 Hz for a single half-cycle.

Is the mounting tab electrically isolated?

No, the TO-263 (N-package) is not electrically isolated; only the L-package variants are internally constructed as isolated devices.