SJ6025N2ATP

Overview

The Littelfuse SJ6025N2ATP is a high-temperature Silicon Controlled Rectifier (SCR) from the SJxx25xxA series, rated for 25 A RMS on-state current and available in 400 V or 600 V blocking voltage configurations. It utilizes a TO-263AB (D2-Pak) surface-mount package with a maximum junction temperature of 150°C. The device features a gate trigger current (IGT) of 10 mA maximum at approximately 1.5 V. Key electrical parameters include a peak non-repetitive surge current of 350 A at 60 Hz, a critical rate of rise of on-state current (di/dt) of 125 A/µs, and a thermal resistance (RθJC) of 1.0 °C/W.

Feature Summary

• AEC-Q101 qualified for automotive Level manufacture control
• Halogen-free and RoHS-compliant construction
• High junction temperature capability up to 150°C
• Surge current capability up to 350 A at 60 Hz half cycle

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 voltage rating required, as the base part number covers both 400 V and 600 V variants. Confirm the package type matches the design requirements, noting that the 'N' suffix indicates the TO-263AB surface-mount configuration. Ensure the ordering suffix corresponds to the desired packing mode, such as tube or embossed carrier reel, to align with assembly processes.

Selection Notes

Select this component for uni-directional switching applications requiring high thermal stability and surface-mount convenience. The 10 mA gate sensitivity offers a balance between noise immunity and drive ease. Designers should limit continuous current to 75% of the rating and ensure adequate heat sinking to manage the 1.0 °C/W junction-to-case thermal resistance under worst-case operating conditions.

Part Context

This device belongs to the SJxx25xxA family of 25 Amp high junction temperature SCRs manufactured by Littelfuse. The series provides options for different packages (TO-220L, TO-220R, TO-263) and gate sensitivities (6 mA, 10 mA, 35 mA). The SJ6025N2ATP specifically denotes the 600 V version, 10 mA sensitivity, TO-263 package, and tube packing.

Replacement Considerations

Direct substitutes within the same series include SJ6025R2ATP (TO-220R package) or SJ6025L2ATP (TO-220L package) if package changes are acceptable. For lower gate sensitivity, SJ6025N1ATP is available. Verify thermal and mechanical footprint compatibility before substituting.