SJ6025L1ATP

Overview

The Littelfuse SJ6025L1ATP is a high-temperature Silicon Controlled Rectifier (SCR) from the SJxx25xxA series, rated for 25 A RMS on-state current and 600 V repetitive peak reverse voltage. It features a low gate trigger current of 6 mA maximum at approximately 1.5 V gate voltage. The device supports a junction temperature range of -40°C to 150°C and offers surge capability up to 350 A at 60 Hz half cycle. Packaged in an isolated TO-220L configuration with matte tin-plated copper alloy leads, it meets RoHS standards and holds AEC-Q101 automotive qualification.

Feature Summary

• High junction temperature operation up to 150°C for enhanced thermal performance
• Low gate sensitivity with a maximum trigger current of 6 mA
• Automotive Level manufacturing control with AEC-Q101 qualification
• Isolated mounting tab design for ease of heat sinking and high isolation voltage

Applications

• AC Generator (ACG) rectifiers
• Battery voltage regulators
• Inrush current controllers in AC to DC applications
• Soft starters for low power AC motors
• Controls for power tools and home appliances

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm package type and gate sensitivity. Ensure the component matches the required voltage rating and thermal management specifications for the target application. Confirm compliance with RoHS directives and AEC-Q101 automotive standards if applicable to the end product requirements.

Selection Notes

Select this component based on its 600 V blocking capability and 25 A continuous current rating. Consider the isolated TO-220L package for applications requiring electrical isolation between the mounting surface and the anode. Evaluate the thermal resistance characteristics and derating curves to ensure adequate heat sinking for the expected operating conditions and ambient temperatures.

Part Context

This part belongs to the SJxx25xxA series of 25 Amp high junction temperature SCRs manufactured by Littelfuse Inc. The series includes variants with different voltage ratings (400V or 600V), gate sensitivities (6mA, 10mA, or 35mA), and packages (TO-220L, TO-220R, TO-263). The SJ6025L1ATP specifically denotes the 600V, 6mA sensitivity, isolated TO-220L variant in tube packaging.

Replacement Considerations

Direct replacements within the same family include SJ6025L2ATP (10mA sensitivity) or SJ6025L3ATP (35mA sensitivity) if gate drive levels differ. Other packages like SJ6025R1ATP (non-isolated) may be used if isolation is not required. Verify pinout compatibility and thermal interface requirements when substituting.