TN4050HA-12GY

Scrs Overview

The TN4050HA-12GY is an automotive-grade Silicon Controlled Rectifier (SCR) thyristor manufactured by STMicroelectronics, housed in a D²PAK surface-mount package. It features a maximum repetitive peak off-state voltage of 1200 V and a nominal RMS on-state current rating of 40 A. The device supports a maximum surge voltage of 1400 V and handles a surge current of up to 400 A for a 10 ms sine wave pulse. Designed for high thermal performance, it operates with a maximum junction temperature of 150 °C. Key dynamic parameters include an off-state dV/dt of 1500 V/µs and a turn-on dI/dt of 200 A/µs at Tj = 150 °C. The component requires a maximum gate trigger current (IGT) of 50 mA and complies with ECOPACK2 standards, ensuring RoHS and halogen-free specifications.

Scrs Feature Summary

• AEC-Q101 qualified for automotive reliability requirements
• High off-state immunity with superior dV/dt performance
• Compact SMD design suitable for PCB or insulated metal substrate boards
• ECOPACK2 compliant with halogen-free molding compound

Scrs Applications

• Automotive on-board chargers
• Solid state relays
• Stationary battery chargers requiring high off-state immunity
• Inrush current limitation circuits

Scrs Procurement Notes

Verify the specific ordering suffix and package variant against the official STMicroelectronics datasheet to ensure compatibility with your system requirements. Confirm that the component meets all necessary automotive qualification standards, specifically AEC-Q101, before finalizing procurement decisions. Cross-reference the part number with authorized distributors to ensure authenticity and traceability.

Scrs Selection Notes

Select this component when designing compact power switching applications requiring high voltage robustness and surge current handling in a surface-mount format. Consider its 150 °C maximum junction temperature capability for thermal management efficiency. Ensure the gate drive circuit can supply the required 50 mA trigger current. Evaluate the D²PAK package suitability for your printed circuit board layout or insulated metal substrate constraints.

Scrs Part Context

This SCR belongs to STMicroelectronics' automotive-grade thyristor family, designed for high-power density applications. It complements other devices like the TN5050H-12WY and STTN6050H-12M1Y, offering a balance between current capacity and physical footprint. The D²PAK packaging facilitates automated assembly and efficient heat dissipation compared to traditional through-hole alternatives.

Scrs Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify electrical compatibility, including blocking voltage, RMS current, and package dimensions, if considering alternative manufacturers or different series within the same product line.