STMicroelectronics STGW40H65FB

Overview

STGW40H65FB from STMicroelectronics is a 650 V, 40 A trench-gate field-stop IGBT in the high-speed HB series, optimized for PFC and inverter stages in industrial power conversion. It delivers V_CE(sat) = 1.6 V (typ) at I_C = 40 A, T_J = 25 °C; t_d(off) = 142 ns; E_off = 363 µJ; R_thJC = 0.53 °C/W; and operates up to T_J = 175 °C - enabling compact, high-efficiency 10–50 kHz switching in solar string inverters and DC fast-charging stations.

For engineers reviewing the STGW40H65FB datasheet, STGW40H65FB pinout, STGW40H65FB application, or STGW40H65FB equivalent, this page provides verified electrical specs, TO-247 package terminal mapping, thermal performance data, paralleling capability analysis, and real-world use cases in UPS and welding systems - all derived from DS9908 Rev 9 (Dec 2024).

Technical Context

This IGBT employs ST's proprietary trench gate + field-stop structure to balance conduction loss (low V_CE(sat)) and switching loss (minimized tail current), achieving optimal efficiency across 10–30 kHz operation. Its slightly positive V_CE(sat) temperature coefficient and tight parameter distribution enable stable parallel operation without external current-sharing resistors.

The device is characterized for inductive-load switching with V_CC = 400–520 V, I_C = 40 A, V_GE = 0–15 V, and R_G = 5 Ω. Dynamic parameters - including Q_g = 210 nC, C_ies = 5412 pF, and E_ts = 861 µJ at T_J = 25 °C - are measured per standard test circuits (Fig. 26–27, DS9908), supporting accurate gate driver sizing and thermal modeling.

Key Specifications

Pinout & Package

STGW40H65FB is housed in a TO-247 package with isolated tab (collector-connected), long leads not used. The package features low thermal resistance (R_thJC = 0.53 °C/W) and creepage/clearance compliant with industrial safety standards.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IXGN40N60B3 and IKW40N65ES5, STGW40H65FB uniquely combines 175 °C operation, minimized tail current, and tight parameter spread - making it the only choice for thermally constrained, paralleled, or high-reliability industrial inverters demanding >10-year field life.

Availability

STGW40H65FB is available at Aetrix Electronics and suitable for solar string inverters, PFC converters, uninterruptible power supplies, and welding equipment requiring stable component supply across multi-year production cycles.

Supply support for STGW40H65FB 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 analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.

STGW40H65FB belongs to the HB-series high-speed IGBT product line, engineered specifically for high-efficiency, high-reliability industrial power conversion - emphasizing low-loss switching, safe paralleling, and extended thermal operation in harsh environments.

FAQ

What is the maximum gate-emitter voltage rating for STGW40H65FB?

The absolute maximum V_GE is ±20 V, as specified in Table 1 of DS9908 Rev 9. Operation beyond this range risks permanent gate oxide damage. Recommended gate drive is +15 V for turn-on and –5 V to –10 V for turn-off to ensure robust noise immunity and minimize Miller-induced false triggering.

Can STGW40H65FB be directly paralleled with identical units?

Yes - its slightly positive V_CE(sat) temperature coefficient and tight parameter distribution (±5% V_CE(sat)) enable stable current sharing without external emitter resistors. ST validates safe paralleling up to four devices in TO-247 packages with matched gate drive loop inductance and symmetric thermal mounting.

What is the thermal resistance from junction to case (R_thJC) for STGW40H65FB?

R_thJC is 0.53 °C/W for the TO-247 package, measured under standard mounting conditions (grease, 0.5 N·m torque, flat heatsink). This value is confirmed in Table 2 of DS9908 Rev 9 and applies to both standard and long-lead TO-247 variants of this part number.

Does STGW40H65FB include an integrated anti-parallel diode?

No - STGW40H65FB is a standalone IGBT. The datasheet references co-packed diodes (e.g., STGW40H65DFB) for companion freewheeling, but this device has no monolithically integrated diode. External ultrafast diodes with matched soft recovery (e.g., STTH30L06D) are required for inductive load applications.