STMicroelectronics STGW25M120DF3

Overview

STGW25M120DF3 from STMicroelectronics is a trench-gate field-stop IGBT with integrated soft- and fast-recovery antiparallel diode, rated for 1200 V V_CES, 25 A continuous collector current at T_C = 100 °C, 1.85 V typical V_CE(sat) @ 25 A, 10 µs short-circuit withstand time, and TO-247 package. It serves as a high-voltage, medium-power switching device in industrial inverter stages requiring robust fault tolerance and thermal stability.

For engineers reviewing the STGW25M120DF3 datasheet, STGW25M120DF3 pinout, STGW25M120DF3 application, or STGW25M120DF3 equivalent, this page delivers verified electrical specs, thermal behavior, gate drive requirements, diode recovery characteristics, and real-world paralleling suitability - all critical for UPS, solar string inverters, and welding power stage design.

Technical Context

This IGBT employs ST's M-series trench gate field-stop architecture to simultaneously optimize conduction loss (low V_CE(sat)) and switching performance (E_on/E_off ≤ 3.5 mJ total at T_J = 175 °C), while maintaining a positive V_CE(sat) temperature coefficient for stable current sharing. Its integrated diode features soft reverse recovery (trr ≤ 585 ns at T_J = 175 °C) and low Q_rr (5 µC), minimizing voltage overshoot during commutation.

The device operates across -55 to +175 °C junction temperature, supported by R_thJC = 0.4 °C/W (IGBT) and 0.96 °C/W (diode), enabling high-power density designs in forced-air or liquid-cooled industrial drives. Gate charge parameters (Q_g = 85 nC, Q_gc = 45.5 nC) define precise drive strength requirements for <150 ns turn-off delay and controlled di/dt.

Key Specifications

Pinout & Package

STGW25M120DF3 uses a standard TO-247 package with three main terminals and an electrically isolated metal tab (collector). The tab is thermally connected to the IGBT die and serves as the collector terminal (C), while the molded plastic body insulates gate (G) and emitter (E) leads.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage IGBT applications.

Compared with IXGN25N120B3 and IKW25N120T2, STGW25M120DF3 offers the best balance of low conduction loss, integrated diode softness, and short-circuit ruggedness - making it optimal for industrial drives and UPS where reliability under transient overload is non-negotiable.

Availability

STGW25M120DF3 is available at Aetrix Electronics and suitable for industrial motor drives, uninterruptible power supplies, solar string inverters, and industrial welding equipment requiring stable component supply across multi-year production cycles.

Supply support for STGW25M120DF3 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, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.

This device belongs to ST's M-series IGBT portfolio, engineered specifically for high-efficiency, high-reliability inverter systems where low-loss operation and short-circuit robustness are essential - such as industrial drives and renewable energy converters.

FAQ

What is the maximum gate-emitter voltage rating for STGW25M120DF3?

The absolute maximum gate-emitter voltage is ±20 V for continuous operation and ±30 V for transient conditions, as specified in Table 1 of DS10300 Rev 4. Exceeding ±20 V continuously risks permanent gate oxide damage, while transient spikes beyond ±30 V may cause immediate failure. A clamped gate driver with Zener protection at 18 V is recommended for robust operation.

Can STGW25M120DF3 be paralleled with identical units without external current-sharing resistors?

Yes - its tight parameter distribution and positive V_CE(sat) temperature coefficient enable stable paralleling without emitter resistors, provided layout symmetry, matched gate drive impedance, and thermal coupling are maintained. Datasheet Figure 9 confirms consistent transfer characteristics across temperature, supporting up to four devices in parallel in industrial drive applications.

What is the thermal resistance from junction to case for the integrated diode?

The thermal resistance junction-to-case for the antiparallel diode is 0.96 °C/W, as listed in Table 1 under "Thermal data". This value applies when heat flows from the diode die through the common TO-247 tab to the heatsink, and must be included separately in thermal modeling alongside the IGBT's 0.4 °C/W R_thJC.

Does STGW25M120DF3 require a negative gate voltage for turn-off in high-noise industrial environments?

No - the device is fully characterized for 0 V to +15 V gate drive, and its ±20 V V_GE rating supports 0 V turn-off. However, applying –5 V to –8 V during off-state improves noise immunity and prevents spurious turn-on in high-dV/dt environments like welding inverters; this is optional but recommended for EMI-critical applications.