STMicroelectronics STGD7NB60ST4

Overview

STGD7NB60ST4 from STMicroelectronics is an N-channel 600 V, 7 A surface-mount PowerMESH™ IGBT in DPAK (TO-252) package, optimized for low-frequency switching (<1 kHz) with V_CE(sat) ≤ 1.6 V at 7 A and T_j = 125 °C, used in AC light dimmers and solid-state relay drivers.

For engineers reviewing the STGD7NB60ST4 datasheet, STGD7NB60ST4 pinout, STGD7NB60ST4 application, or STGD7NB60ST4 equivalent, key selection criteria include verified 600 V blocking capability, gate-threshold voltage range (2.5–5 V), thermal resistance (R_thj-case = 2.27 °C/W), safe operating area under inductive load, and tape-and-reel packaging (suffix "T4").

Technical Context

This IGBT employs ST's patented PowerMESH™ strip layout to achieve high input impedance (voltage-driven gate), very low conduction losses, and robust tail-current handling during turn-off. Its design targets <1 kHz applications where low V_CE(sat) and high current density outweigh high-speed switching needs.

The device features a maximum junction temperature of 150 °C, 20 V reverse battery protection (V_ECR), ±20 V gate-emitter rating, and thermal performance validated via R_thj-case = 2.27 °C/W and R_thc-sink = 1.5 °C/W (typical with heatsink).

Key Specifications

Pinout & Package

DPAK (TO-252) surface-mount package with exposed drain tab (pin 2) for thermal and electrical connection; molded plastic body with gull-wing leads; tape-and-reel delivery (suffix "T4").

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar IGBT switching applications.

Compared with STGD6NC60DT4, STGD7NB60ST4 offers +1 A current margin and higher V_ECR for reverse polarity resilience; versus FGB3040LDTM, it trades 3 A current headroom for lower gate charge and integrated reverse protection-critical in space-constrained dimmer designs.

Availability

STGD7NB60ST4 is available at Aetrix Electronics and suitable for AC light dimmers, solid-state relays, single-phase motor starters, and DC motor speed controllers requiring stable component supply across production lifecycles.

Supply support for STGD7NB60ST4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

The PowerMESH™ IGBT product line targets cost-sensitive, medium-power switching applications demanding low conduction loss and ruggedness in <1 kHz operation-especially in home appliance, lighting, and industrial controls.

FAQ

What is the maximum gate-emitter voltage for reliable operation?

The absolute maximum V_GE is ±20 V per datasheet. Operation beyond ±15 V risks permanent gate oxide damage. For robust design, gate drive should be clamped to ±15 V with fast-acting Zener diodes, especially during transients or hot-plug events.

Can STGD7NB60ST4 replace a TRIAC in dimmer circuits?

Yes-it functions as a unidirectional switch in phase-control dimmers when paired with a bidirectional trigger circuit (e.g., DIAC + optocoupler). Unlike TRIACs, it requires separate gate drive for each half-cycle and does not self-commutate, but offers superior dV/dt immunity and no snubber requirement.

Is heatsinking required for 7 A continuous operation?

Yes-continuous 7 A operation at T_c = 100 °C requires thermal resistance from junction to ambient ≤ 7.14 °C/W. With R_thj-case = 2.27 °C/W, a heatsink + interface material adding ≤ 4.87 °C/W is mandatory; PCB copper alone is insufficient.

Does the "T4" suffix indicate RoHS compliance?

Yes-STGD7NB60ST4 conforms to RoHS Directive 2011/65/EU and REACH SVHC regulations. The "T4" suffix denotes tape-and-reel packaging (1,000 pcs/reel); RoHS status is confirmed in ST's official part marking and material declarations (DocID15219).