Infineon Technologies IKFW60N65ES5XKSA1

Overview

IKFW60N65ES5XKSA1 from Infineon is a 650 V, 50 A TRENCHSTOP™ 5 advanced isolation IGBT with integrated full-current-rated RAPID 1 antiparallel diode in a fully isolated TO-247 package. It delivers 1.35 V V_CE(sat) at 25°C and 50 A, supports 175°C maximum junction temperature, and enables high-efficiency resonant and hard-switching converters up to mid-to-high frequencies (e.g., UPS inverters and welding power stages).

For engineers reviewing the IKFW60N65ES5XKSA1 datasheet, IKFW60N65ES5XKSA1 pinout, IKFW60N65ES5XKSA1 application, or IKFW60N65ES5XKSA1 equivalent, key selection criteria include its low conduction loss, soft switching capability, isolated package for enhanced system safety, and validated performance across industrial temperature ranges (−40°C to +175°C).

Technical Context

This IGBT employs TRENCHSTOP™ 5 trench-gate field-stop technology optimized for smooth voltage transitions and minimized tail current. Its co-packaged RAPID 1 diode exhibits 77 ns trr and 1.21 µC Q_rr at 25°C, enabling low-loss commutation in ZVS/ZCS topologies.

The device features gate charge of 120 nC and input capacitance of 3108 pF, supporting gate drive design with standard ±15 V logic-level drivers. Thermal resistance from junction to heatsink is 0.92–1.09 K/W, enabling high-power density mounting on standard heatsinks without auxiliary insulation.

Key Specifications

Pinout & Package

Package: PG-HSIP247-3-2 (fully isolated TO-247 variant with insulated collector tab). Mounting torque: 0.6 Nm (M3 screw). Isolation rating: 2500 V RMS, 50/60 Hz, 1 min.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IKFW60N65ES5XKSA1, the KSA2 variant offers identical performance with no trade-offs, while the 50 A variant trades current capacity for lower cost-making it viable only where full 50 A load is not required and thermal design accommodates higher junction temperatures.

Availability

IKFW60N65ES5XKSA1 is available at Aetrix Electronics and suitable for resonant converters, uninterruptible power supplies, and welding converters requiring stable component supply, long-term industrial lifecycle support, and certified isolation integrity.

Supply support for IKFW60N65ES5XKSA1 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 AG is a German semiconductor manufacturer specializing in power semiconductors, microcontrollers, and sensor solutions for industrial, automotive, and renewable energy markets.

This part belongs to the TRENCHSTOP™ 5 Advanced Isolation IGBT product line, engineered specifically for high-reliability industrial power conversion where galvanic isolation, soft switching, and thermal robustness are critical.

FAQ

What is the maximum gate-emitter voltage rating for IKFW60N65ES5XKSA1?

The absolute maximum gate-emitter voltage is ±20 V for continuous operation and ±30 V for transient pulses ≤10 µs. Exceeding ±20 V continuously risks gate oxide degradation and premature failure. Gate drive circuits must include clamping (e.g., Zener diodes) to ensure safe operation within this limit.

Does IKFW60N65ES5XKSA1 require external gate resistors for reliable switching?

Yes-external gate resistors are mandatory. The datasheet specifies RG(on) = RG(off) = 8.2 Ω for characterization. Lower values increase dV/dt and EMI; higher values slow switching and raise energy losses. Layout inductance must also be minimized to prevent oscillation during turn-on/off transitions.

Can IKFW60N65ES5XKSA1 replace older TRENCHSTOP™ 4 IGBTs in existing designs?

It is a plug-and-play replacement per Infineon documentation: same pinout, package, and voltage/current ratings. However, its lower V_CE(sat) and faster switching require verification of gate drive strength and snubber tuning-especially in hard-switched topologies where reduced tail current changes loss distribution.

What thermal interface material is recommended for mounting IKFW60N65ES5XKSA1?

Infineon recommends using a 152 µm-thick polyimide-based reinforced carrier insulator with thermal conductivity ≥1.3 W/m·K. Standard silicone grease or phase-change pads alone are insufficient-the isolation barrier must maintain 2500 V RMS withstand voltage and mechanical integrity under thermal cycling.