Infineon Technologies IKFW40N65ES5XKSA1

Overview

IKFW40N65ES5XKSA1 from Infineon is a 650 V, 30 A TRENCHSTOP™ 5 Advanced Isolation IGBT with integrated RAPID 1 antiparallel diode in a fully isolated TO-247 package. It delivers 1.35 V V_CE(sat) at 25°C and 30 A, supports 175°C maximum junction temperature, and enables high-efficiency resonant and UPS converters requiring soft-switching capability and low conduction loss.

For engineers reviewing the IKFW40N65ES5XKSA1 datasheet, IKFW40N65ES5XKSA1 pinout, IKFW40N65ES5XKSA1 application, or IKFW40N65ES5XKSA1 equivalent, this device is selected for hard/soft-switching topologies where low gate charge (70 nC), fast switching (td(off) = 124 ns @ 25°C), and robust isolation (2500 V_RMS) are critical to thermal management and system reliability.

Technical Context

This IGBT employs TRENCHSTOP™ 5 S5 technology optimized for high-speed, smooth switching in both hard- and soft-switching configurations. Its monolithic integration with a full-current-rated RAPID 1 diode ensures matched dynamic behavior and minimized reverse recovery losses (Q_rr = 0.83 µC @ 25°C).

The fully isolated PG-HSIP247-3-2 package provides galvanic separation between collector and heatsink, enabling direct mounting without insulating pads. Thermal resistance from junction to heatsink is 1.20–1.41 K/W for the IGBT and 1.37–1.51 K/W for the diode under 500 N clamping force.

Key Specifications

Pinout & Package

Package: PG-HSIP247-3-2 (TO-247 variant with advanced isolation). The device features three terminals: Collector (C), Gate (G), and Emitter (E), with collector electrically isolated from the case/heatsink.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IKFW50N65ES5, the IKFW40N65ES5XKSA1 offers lower gate charge and tighter thermal resistance tolerance, making it preferable for space-constrained, gate-drive-limited designs operating near 30 A nominal current.

Availability

IKFW40N65ES5XKSA1 is available at Aetrix Electronics and suitable for resonant converters, uninterruptible power supplies, and welding inverters requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.

Supply support for IKFW40N65ES5XKSA1 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 energy applications.

The TRENCHSTOP™ 5 product line targets high-efficiency power conversion systems demanding low-loss switching, ruggedness, and thermal resilience - especially in UPS, solar inverters, and industrial motor drives.

FAQ

What is the maximum allowable gate-emitter voltage for IKFW40N65ES5XKSA1?

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 oxide degradation and threshold shift; gate drive circuits must include clamping or active regulation to stay within this limit under all operating conditions including Miller-induced spikes.

Does IKFW40N65ES5XKSA1 require a negative gate voltage for reliable turn-off?

No - the device is fully compatible with 0 V / +15 V gate drive. However, applying –5 V to –10 V during turn-off reduces Miller-induced false triggering in high-di/dt environments and improves noise immunity in densely packed power modules, though not mandatory for basic functionality.

How does the isolated package affect heatsink mounting requirements?

The PG-HSIP247-3-2 package integrates reinforced insulation between collector and case, allowing direct mechanical attachment to an earthed heatsink without additional insulating hardware. Mounting torque must be limited to 0.6 Nm on M3 screws to avoid cracking the isolation layer while ensuring optimal thermal contact.

Can IKFW40N65ES5XKSA1 replace older TRENCHSTOP™ 4 IGBTs in existing designs?

Yes - it is specified as a plug-and-play replacement for prior-generation devices. Key improvements include lower V_CE(sat), reduced Q_G, and enhanced diode softness, but gate drive timing and snubber values may require minor optimization to fully exploit the faster switching and lower losses.