Infineon Technologies IKFW50N60ETXKSA1

Overview

IKFW50N60ETXKSA1 from Infineon is a 600 V, 50 A TRENCHSTOP™ Advanced Isolation IGBT with integrated rapid soft-recovery antiparallel diode in a fully isolated TO-247-3 package. It delivers 1.5 V V_CE(sat) at 25°C, 5 µs short-circuit withstand time at 150°C junction temperature, and 2500 V_RMS isolation rating - enabling robust operation in industrial motor drives and solar string inverters.

For engineers reviewing the IKFW50N60ETXKSA1 datasheet, IKFW50N60ETXKSA1 pinout, IKFW50N60ETXKSA1 application, or IKFW50N60ETXKSA1 equivalent, key selection criteria include its isolated mounting surface, positive V_CE(sat) temperature coefficient for parallel operation, low EMI switching behavior, and validated performance up to 175°C junction temperature.

Technical Context

This IGBT employs TRENCHSTOP™ trench-gate field-stop technology to achieve low conduction loss and controlled switching tail current. Its monolithic integration with a rapid, soft-recovery diode minimizes reverse recovery charge (Q_rr = 1.24 µC at 25°C) and peak reverse recovery current (I_rrm = 27.0 A), reducing voltage overshoot and snubber stress.

The fully isolated PG-TO247-3-AI package provides 2500 V_RMS galvanic separation between collector and heatsink, eliminating external insulation requirements. Thermal resistance from junction to heatsink is 0.77–0.91 K/W for the IGBT and 1.18–1.30 K/W for the diode under 500 N clamping force - critical for thermal design in high-power converters.

Key Specifications

Pinout & Package

Package: PG-TO247-3-AI - Fully isolated TO-247 variant with insulated mounting surface rated for 2500 V_RMS isolation (50/60 Hz, 1 min). Mounting torque: 0.6 Nm (M3 screw).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IKW50N60T and FGH50T60SQD, IKFW50N60ETXKSA1 uniquely combines certified galvanic isolation, lower conduction loss, and industrial-grade qualification - making it the preferred choice where safety, reliability, and thermal efficiency are jointly prioritized.

Availability

IKFW50N60ETXKSA1 is available at Aetrix Electronics and suitable for industrial motor drives, solar string inverters, and servo amplifier power stages requiring stable component supply and long-term lifecycle support.

Supply support for IKFW50N60ETXKSA1 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

Infineon Technologies is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and renewable energy markets.

IKFW50N60ETXKSA1 belongs to the TRENCHSTOP™ Advanced Isolation product line, engineered specifically for high-reliability industrial inverters where galvanic isolation, thermal robustness, and switching efficiency must coexist without compromise.

FAQ

What is the maximum allowable gate-emitter voltage for IKFW50N60ETXKSA1?

The absolute maximum gate-emitter voltage is ±20 V for continuous operation and ±30 V for transient conditions (t_p ≤ 10 µs, duty cycle < 1%). Exceeding these limits risks permanent gate oxide damage. Recommended gate drive uses +15 V turn-on and –5 V to –10 V turn-off to ensure fast, reliable switching and noise immunity.

Does IKFW50N60ETXKSA1 require an external freewheeling diode?

No. The device integrates a rapid, soft-recovery antiparallel diode optimized for synchronous rectification and inductive load commutation. Its Q_rr of 1.24 µC and trr of 91 ns at 25°C are characterized and validated - eliminating the need for discrete diodes in standard half-bridge or full-bridge topologies.

How does the isolated package affect heatsink mounting?

The PG-TO247-3-AI package features a fully insulated collector tab rated for 2500 V_RMS. This allows direct mounting to an uninsulated metal heatsink without thermal pads or mica washers. Mounting torque must be strictly controlled at 0.6 Nm (M3 screw) to maintain isolation integrity and thermal contact pressure.

Can IKFW50N60ETXKSA1 be paralleled with identical units?

Yes - its positive temperature coefficient of V_CE(sat) ensures inherent current balancing under thermal stress. Parallel operation requires matched gate drive impedance, symmetrical PCB layout, and individual gate resistors. Derating to 80% of total rated current is recommended for long-term reliability in shared heatsink configurations.