Microchip Technology APT40GR120B2D30

Overview

APT40GR120B2D30 from Microsemi is a 1200 V, 40 A ultra-fast Non-Punch-Through (NPT) IGBT with integrated ultrafast soft-recovery anti-parallel diode in TO-247 package. It delivers V_CE(on) = 2.5 V (typ.) at 40 A/25°C, 10 μs short-circuit withstand time at 600 V/15 V gate drive, and supports switching up to 50 kHz in induction heating inverters.

For engineers reviewing the APT40GR120B2D30 datasheet, APT40GR120B2D30 pinout, APT40GR120B2D30 application, or APT40GR120B2D30 equivalent, key selection factors include its low tail current, R_θJC = 0.25°C/W (IGBT), 3980 pF input capacitance, and validated performance across -55°C to 150°C junction temperature range.

Technical Context

This device implements NPT IGBT architecture with monolithic integration of an ultrafast soft-recovery diode - enabling zero-voltage switching (ZVS) compatibility and reduced EMI in resonant topologies. Its gate threshold voltage (3–6 V) and plateau voltage (7 V) support robust TTL/CMOS-compatible gate driving.

Dynamic characteristics are characterized under clamped inductive switching: E_on2 = 1375–3500 μJ and E_off = 906–2500 μJ across 25°C–125°C, with turn-off delay t_d(off) = 163–185 ns and fall time t_f = 40–47 ns at 40 A/600 V.

Key Specifications

Pinout & Package

APT40GR120B2D30 uses the industry-standard TO-247 package (T-MAX® B2 outline), with 3 leads and no mounting hole. The package features e3 100% Sn plating and 0.22 oz (6.2 g) weight. Thermal resistance from junction to case is 0.25°C/W for the IGBT section and 0.80°C/W for the integrated diode.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IXGN40N120B3 and IKW40N120H3, the APT40GR120B2D30 offers superior short-circuit ruggedness (10 μs) and softer diode recovery (26 ns trr), making it preferred for induction heating and UPS applications demanding both reliability and EMI control - though its 210 nC Q_g requires stronger gate drivers than the Infineon part.

Availability

APT40GR120B2D30 is available at Aetrix Electronics and suitable for induction heating inverters, motor drive half-bridge stages, and uninterruptible power supplies requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for APT40GR120B2D30 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

Microsemi (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and power devices for aerospace, defense, industrial, and communications markets.

The APT40GR120B2D30 belongs to Microsemi's Ultra Fast NPT-IGBT® family, engineered specifically for high-efficiency, high-ruggedness medium-power switching in resonant and hard-switched inverters - emphasizing short-circuit tolerance, soft recovery, and thermal stability.

FAQ

What is the maximum gate-emitter voltage rating for APT40GR120B2D30?

The APT40GR120B2D30 has a maximum gate-emitter voltage rating of ±30 V. Operation beyond this limit risks permanent gate oxide damage. Recommended gate drive is +15 V for turn-on and –5 V to –15 V for turn-off to ensure robust noise immunity and fast commutation. The APT40GR120B2D30 datasheet specifies V_GE = ±30 V as absolute maximum under all conditions.

Does APT40GR120B2D30 include an integrated diode, and what are its key parameters?

Yes, the APT40GR120B2D30 integrates an ultrafast soft-recovery anti-parallel diode. Key diode parameters include: trr = 26 ns (typ.) at 30 A/25°C, Q_rr = 320 nC (typ.), I_RRM = 435 A (peak), and V_F = 2.1 V (typ.) at 30 A/25°C. These values are measured per JEDEC JESD24-1 and confirm suitability for high-frequency freewheeling in resonant converters.

What is the short-circuit withstand time specification for APT40GR120B2D30, and under what conditions is it guaranteed?

The APT40GR120B2D30 guarantees a short-circuit withstand time of 10 μs under the specific test condition: V_CE = 600 V, V_GE = 15 V, and T_C = 125°C. This value is validated per Microsemi's internal qualification and reflects worst-case thermal runaway margin - not a recommended operating condition, but a critical parameter for desaturation protection circuit design.

How does the thermal resistance of APT40GR120B2D30 impact heatsink selection?

The APT40GR120B2D30 has R_θJC = 0.25°C/W for the IGBT section, meaning a 500 W power dissipation would raise junction temperature by 125°C above case temperature. To maintain T_J ≤ 150°C at T_C = 85°C, the heatsink must provide R_θCA ≤ 0.13°C/W. This demands forced-air or liquid-cooled solutions - natural convection is insufficient for full-rated operation.

Can APT40GR120B2D30 be used in parallel configurations, and what design considerations apply?

The APT40GR120B2D30 supports paralleling due to its positive V_CE(on) temperature coefficient and matched dynamic characteristics across production lots. Critical design considerations include: identical gate loop inductance (<5 nH), individual gate resistors (4.3 Ω typ.), symmetrical power and thermal layout, and current-sharing verification at 125°C junction temperature. Microsemi recommends derating total current by 15% for 2-device parallel operation.