Infineon Technologies IKW20N60H3FKSA1

Overview

IKW20N60H3FKSA1 from Infineon Technologies is a 600 V, 20 A high-speed IGBT in Trench and Fieldstop technology, integrated with a soft, fast-recovery anti-parallel diode in a single PG-TO247-3 package. It delivers 1.95 V V_CE(sat) at 25°C, 175°C maximum junction temperature, and 5 µs short-circuit withstand time - optimized for high-frequency switching in industrial power converters.

For engineers reviewing the IKW20N60H3FKSA1 datasheet, IKW20N60H3FKSA1 pinout, IKW20N60H3FKSA1 application, or IKW20N60H3FKSA1 equivalent, key selection criteria include its low conduction loss, soft diode recovery (trr = 112 ns @ 25°C), EMI-reduced switching behavior, and JEDEC-qualified reliability for uninterrupted power supplies and welding inverters.

Technical Context

This IGBT employs TRENCHSTOP™ third-generation architecture to simultaneously minimize V_CE(sat) (1.95 V) and switching losses (E_on = 0.56 mJ, E_off = 0.24 mJ at 25°C), while integrating a co-packaged diode with controlled reverse recovery (Q_rr = 0.39 µC, dirr/dt = −750 A/µs). Its 0.88 K/W IGBT junction-to-case thermal resistance supports high-power density designs.

The device operates across −40°C to +175°C junction temperature range and sustains 80 A pulsed collector current under safe operating area constraints. Gate threshold voltage (V_GE(th) = 4.1–5.7 V) and transconductance (g_fs = 10.9 S) ensure stable drive compatibility with standard ±15 V gate drivers.

Key Specifications

Pinout & Package

IKW20N60H3FKSA1 uses the PG-TO247-3 package: isolated metal tab, vertical lead frame, 3-terminal through-hole outline with 2.54 mm lead pitch and 15.8 mm body height. Thermal pad is electrically connected to collector (pin 2).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IKW20N60H3FKSA1, IKW25N60H3 offers headroom for current scaling at modest thermal cost, while FGH20N60UF trades conduction efficiency for faster switching - making the former ideal for industrial inverters and the latter better for high-frequency SMPS.

Availability

IKW20N60H3FKSA1 is available at Aetrix Electronics and suitable for uninterruptible power supplies, industrial welding converters, and high-frequency motor drives requiring stable component supply, long-lifecycle support, and JEDEC-qualified reliability.

Supply support for IKW20N60H3FKSA1 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, with global manufacturing and R&D centers.

IKW20N60H3FKSA1 belongs to Infineon's High-Speed Switching Series third-generation IGBT portfolio, designed specifically for industrial power conversion systems demanding low-loss, high-reliability switching at 10–50 kHz.

FAQ

What gate resistor value is recommended for IKW20N60H3FKSA1 in a 20 kHz inverter?

A 14.6 Ω gate resistor is specified in the datasheet for switching characterization (E_on/E_off measurement at 20 kHz). This value balances switching speed (td(off) = 194 ns) and gate oscillation damping. For 20 kHz hard-switched operation, 10–15 Ω maintains safe dv/dt (<10 V/ns) while minimizing driver loss; values below 8 Ω risk overshoot and EMI.

Does IKW20N60H3FKSA1 require a negative gate voltage for reliable turn-off?

No - the device is fully specified for 0 V/15 V gate drive (V_GE = 0 V off, 15 V on). Its V_GE(th) of 4.1–5.7 V ensures noise immunity at 0 V, and no negative bias is needed for robust commutation. Negative voltage (e.g., −5 V) may be used optionally to improve dv/dt immunity in high-noise environments but is not required per datasheet conditions.

Can IKW20N60H3FKSA1 replace older IKW20N60H2 in existing designs?

Yes - it is a direct drop-in replacement with identical pinout, package (PG-TO247-3), and voltage/current ratings. Key improvements include 12% lower V_CE(sat), 15% lower E_off, and enhanced softness of the anti-parallel diode (trr reduced by 20 ns). No layout or gate drive changes are required; thermal performance improves marginally due to lower conduction loss.

How does the integrated diode's reverse recovery behavior affect snubber design?

The soft, fast recovery diode (Q_rr = 0.39 µC, trr = 112 ns) produces low di/dt during reverse recovery, reducing voltage overshoot and eliminating the need for RC snubbers in most 20–30 kHz applications. A small 10–22 Ω gate resistor combined with layout-optimized stray inductance (<50 nH) typically suffices - unlike older diodes requiring dedicated snubbers to clamp 100+ V spikes.