Infineon Technologies IKQ120N65EH7XKSA1

Overview

IKQ120N65EH7XKSA1 from Infineon is a 650 V, 120 A TRENCHSTOP™ IGBT7 co-packed with an Emitter Controlled 7 antiparallel diode in PG-TO247-3-PLUS package. It delivers low V_CE(sat) (1.4–1.65 V), fast switching (t_d(off) = 287 ns @ 25°C), and soft reverse recovery (t_rr = 82 ns), enabling high-efficiency hard-switching in industrial UPS and EV-charging inverters.

For engineers reviewing the IKQ120N65EH7XKSA1 datasheet, IKQ120N65EH7XKSA1 pinout, IKQ120N65EH7XKSA1 application, or IKQ120N65EH7XKSA1 equivalent, key selection criteria include junction-to-case thermal resistance (0.23 K/W), gate charge (251 nC), diode Q_rr (2.4 µC), and humidity robustness qualification per JEDEC22-A110.

Technical Context

This IGBT7 device employs field-stop trench gate technology optimized for two- and three-level topologies, featuring a dedicated emitter-controlled diode with controlled dI_rr/dt (−2320 A/µs) to minimize voltage overshoot and EMI. Its low internal emitter inductance (13 nH) supports stable turn-on behavior under high di/dt conditions.

The integrated diode exhibits temperature-stable reverse recovery (t_rr increases only 88% from 25°C to 175°C) and low reverse recovery energy (0.46 mJ @ 25°C), reducing system losses in bidirectional power flow applications such as string inverters and welding power supplies.

Key Specifications

Pinout & Package

Package: PG-TO247-3-PLUS (3-pin, isolated tab, enhanced creepage/clearance, NN3.7 variant). Pin assignment verified per Infineon datasheet Rev. 1.20 (2023-11-15).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IKW120N65ES7, IKQ120N65EH7XKSA1 offers simpler 3-pin layout and humidity robustness but trades 0.1 V higher V_CE(sat); versus FGH120T65SQD, it delivers measurable efficiency gain and extended environmental qualification at modest cost premium.

Availability

IKQ120N65EH7XKSA1 is available at Aetrix Electronics and suitable for industrial UPS systems, EV-charging infrastructure, and photovoltaic string inverters requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for IKQ120N65EH7XKSA1 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 device belongs to the TRENCHSTOP™ IGBT7 family, engineered specifically for high-efficiency, high-reliability hard-switching applications in industrial power conversion, including UPS, solar inverters, and EV charging.

FAQ

What is the maximum allowable case temperature for continuous operation?

The IKQ120N65EH7XKSA1 supports continuous operation up to T_c = 100°C, delivering 120 A collector current at that condition. At T_c = 25°C, it can handle 160 A. Thermal derating follows the curve in Figure 2 of the datasheet; exceeding 100°C case temperature requires forced cooling or reduced current to maintain Tvj ≤ 175°C.

Is a gate resistor required, and what value is recommended?

Yes - a gate resistor is mandatory for controlled switching. For standard hard-switching at 15 V gate drive, Infineon recommends R_G(on) = R_G(off) = 10 Ω (per datasheet test conditions). Lower values (e.g., 5 Ω) reduce switching time but increase EMI risk; higher values (e.g., 22 Ω) improve EMI but raise switching losses proportionally.

Does this part include an integrated freewheeling diode?

Yes - it integrates a soft, fast-recovery Emitter Controlled 7 (EC7) diode co-packaged in the same TO247-3-PLUS housing. The diode shares the emitter terminal and is electrically isolated from the IGBT's collector, enabling bidirectional current flow without external components in half-bridge configurations.

How does humidity robustness impact PCB assembly and field use?

Qualified per JEDEC22-A110, the device withstands 85°C/85% RH for 1000 hours without parameter shift or corrosion. This eliminates need for conformal coating in humid environments (e.g., coastal EV chargers, tropical UPS rooms) and allows standard reflow soldering without moisture sensitivity level (MSL) restrictions beyond MSL-1.