STMicroelectronics STGWT80H65FB

Overview

STGWT80H65FB from STMicroelectronics is a trench-gate field-stop IGBT in the HB series, rated for 650 V collector-emitter voltage and 80 A continuous collector current at T_C = 100 °C. It delivers 1.6 V typical V_CE(sat) at 80 A, features minimized tail current for high-speed switching, and supports safe paralleling due to tight parameter distribution and slightly positive V_CE(sat) temperature coefficient - deployed in photovoltaic inverters and high-frequency converters.

For engineers reviewing the STGWT80H65FB datasheet, STGWT80H65FB pinout, STGWT80H65FB application, or STGWT80H65FB equivalent, key selection criteria include thermal resistance (R_thJC = 0.32 °C/W), gate charge (Q_g = 414 nC), switching energy (E_off = 1.5 mJ @ 25 °C), and TO-3P package compatibility with high-power heatsink mounting.

Technical Context

This IGBT employs ST's proprietary trench gate + field-stop structure to balance conduction loss (V_CE(sat) = 1.6 V @ 80 A) and switching loss (E_ts = 3.6 mJ @ 25 °C). Its dynamic characteristics are optimized for hard-switched 10–50 kHz converters, with turn-off delay t_d(off) = 280 ns and current fall time t_f = 31 ns under standard test conditions (V_CC = 400 V, R_G = 10 Ω).

The device exhibits a stable, slightly positive V_CE(sat) temperature coefficient up to 175 °C junction temperature, enabling predictable current sharing in parallel configurations. Input capacitance C_ies = 10524 pF and reverse transfer capacitance C_res = 215 pF support gate drive design for <100 ns switching transitions with controlled dv/dt.

Key Specifications

Pinout & Package

STGWT80H65FB uses the TO-3P package - a through-hole, insulated metal-tab power package with three leads and an isolated collector tab (pin 2/TAB), designed for high-voltage isolation and direct heatsink mounting. The package provides low thermal resistance and mechanical robustness for industrial power modules.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed 650 V IGBT applications.

Compared with IXGN80N60B3 and IKW80N65ES5, STGWT80H65FB uniquely combines TO-3P isolation, 0.32 °C/W thermal resistance, and balanced conduction/switching loss - making it optimal for high-reliability, parallelable, high-power-density inverter legs where mechanical mounting and thermal management are critical constraints.

Availability

STGWT80H65FB is available at Aetrix Electronics and suitable for photovoltaic inverters, industrial motor drives, and uninterruptible power supplies requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp-up.

Supply support for STGWT80H65FB 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, Switzerland, designing and manufacturing microcontrollers, power devices, sensors, and analog ICs for industrial, automotive, and consumer markets.

STGWT80H65FB belongs to the HB-series high-speed IGBT product line, engineered specifically for high-efficiency, medium-frequency (10–50 kHz) power conversion in renewable energy and industrial motor control applications.

FAQ

What is the maximum recommended gate resistor value for reliable switching?

The datasheet specifies switching times measured with R_G = 10 Ω. Increasing R_G beyond 15 Ω significantly extends t_d(off) and E_off - e.g., at R_G = 20 Ω, E_off rises by ~40%. For 20 kHz operation, R_G = 8–12 Ω is optimal to balance switching loss, dv/dt control, and gate driver stress. Values below 5 Ω risk shoot-through in half-bridge configurations without precise timing control.

Can STGWT80H65FB be used in a 750 V DC link application?

No. Its absolute maximum V_CES is 650 V with no safety margin specified for repetitive operation. Transient overvoltage spikes exceeding 650 V - common in 750 V DC links due to stray inductance - risk avalanche failure or accelerated degradation. For 750 V systems, ST recommends 1200 V-rated IGBTs such as STGWT100H120DF2 or equivalent.

Does the TO-3P package require insulating hardware when mounted to a heatsink?

Yes. Although the TO-3P collector tab is electrically isolated, ST specifies minimum creepage and clearance distances for 650 V operation. Mounting requires an insulating washer (e.g., mica or ceramic) and shoulder washer to prevent shorting between the isolated tab and grounded heatsink. Thermal paste must be non-conductive and applied only to the metal surface - never bridging isolation gaps.

How does junction temperature affect V_CE(sat) performance at full current?

V_CE(sat) increases from 1.6 V (25 °C) to 1.9 V (175 °C) at I_C = 80 A - a +18.8% rise. This linear increase ensures predictable conduction loss growth (from 128 W to 152 W), supporting accurate thermal modeling. The slight positive coefficient also prevents thermal runaway during parallel operation, unlike negative-coefficient devices that demand active balancing.