STMicroelectronics STGWT40H60DLFB

Overview

STGWT40H60DLFB from STMicroelectronics is a trench gate field-stop IGBT in the HB series, co-packaged with a soft-recovery diode, rated for 600 V collector-emitter voltage and 40 A continuous collector current at T_C = 100 °C. It delivers low saturation voltage (V_CE(sat) = 1.6 V typ. @ I_C = 40 A), minimized tail current, and operates up to 175 °C junction temperature - optimized for high-frequency resonant converters in induction heating systems.

For engineers reviewing the STGWT40H60DLFB datasheet, STGWT40H60DLFB pinout, STGWT40H60DLFB application, or STGWT40H60DLFB equivalent, key selection criteria include thermal resistance (R_thJC = 0.53 °C/W for IGBT), switching loss behavior across temperature (E_off = 764 µJ @ T_J = 175 °C), co-packaged diode forward voltage (V_F = 1.25 V @ I_F = 40 A, T_J = 175 °C), safe paralleling capability, and TO-3P mechanical compatibility.

Technical Context

This IGBT employs a proprietary trench gate field-stop structure that balances conduction and switching losses - enabling high efficiency in 20–100 kHz resonant topologies. Its slightly positive V_CE(sat) temperature coefficient and tight parameter distribution support stable parallel operation without external current-sharing resistors.

The integrated low-V_F soft-recovery diode (R_thJC = 1.47 °C/W) reduces reverse recovery losses and EMI in hard-switched and resonant configurations. Gate charge parameters (Q_g = 210 nC, Q_gc = 82 nC) are optimized for 10 Ω gate drive impedance, with turn-off delay (t_d(off) = 141 ns) and fall time (t_f = 61 ns) validated at T_J = 175 °C.

Key Specifications

Pinout & Package

STGWT40H60DLFB uses the TO-3P package - a through-hole, insulated metal-tab power package with 3 terminals and creepage/clearance compliant with industrial safety standards. The metal tab is electrically connected to the collector (C), providing low-inductance, low-thermal-resistance mounting to heatsinks.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IXGN40N60B3 and IKW40N60H3, STGWT40H60DLFB offers the lowest combined conduction–switching loss product at 100–150 kHz, enabled by its field-stop trench structure and integrated diode - making it optimal for compact, high-efficiency resonant heating and power conversion where thermal density and layout area are critical.

Availability

STGWT40H60DLFB is available at Aetrix Electronics and suitable for induction heating inverters, microwave oven power supplies, and resonant LLC converters requiring stable component supply, long-term industrial lifecycle support, and consistent parametric performance across manufacturing lots.

Supply support for STGWT40H60DLFB 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 silicon solutions for automotive, industrial, and consumer markets since 1987.

STGWT40H60DLFB belongs to the HB (High-Balance) series of trench gate field-stop IGBTs - engineered specifically for high-frequency resonant converters where minimizing both conduction and switching losses is essential to achieving >95 % system efficiency.

FAQ

What is the maximum recommended gate-emitter voltage for STGWT40H60DLFB?

The absolute maximum gate-emitter voltage is ±20 V per datasheet Table 2. Operation above +15 V or below –10 V risks permanent gate oxide damage. For reliable switching, ST recommends V_GE(on) = +15 V and V_GE(off) = –5 V to –10 V to ensure fast turn-off and noise immunity. Exceeding ±20 V even momentarily may cause irreversible gate failure.

Can STGWT40H60DLFB be used in parallel configurations?

Yes - ST explicitly qualifies this device for safe paralleling due to its slightly positive V_CE(sat) temperature coefficient and tight parameter distribution (±5 % on V_CE(sat)). Parallel operation requires matched gate drive paths, symmetrical PCB layout, and identical heatsink mounting pressure. No external emitter resistors are needed, but individual gate resistors (10 Ω) are mandatory for stability.

How does the co-packaged diode differ from standard FRD diodes?

The integrated diode features soft recovery (low reverse recovery dv/dt and Q_rr), with V_F = 1.25 V @ 40 A/175 °C and no significant tail current. Unlike standard fast recovery diodes, it avoids voltage spikes during commutation and reduces EMI generation - verified in Figure 11 and application note AN4722. This eliminates the need for RC snubbers in most half-bridge implementations.

What thermal interface material is recommended for TO-3P mounting?

ST specifies minimum mounting torque of 0.7 N·m for M3 screws and recommends thermally conductive, electrically insulating pads (e.g., Bergquist Sil-Pad 1000) or ceramic washers with thermal grease (e.g., Dow Corning TC-5622). Interface thermal resistance must be ≤0.15 °C/W to maintain R_thJC advantage; excessive bondline thickness (>0.2 mm) degrades heat transfer and risks localized hot spots.