Infineon Technologies IPA90R340C3XKSA2

Overview

IPA90R340C3XKSA2 from Infineon Technologies is a 900 V, 0.34 Ω (max @ T_J=25°C) CoolMOS™ C3 superjunction power MOSFET in PG-TO220 FP package, optimized for high-efficiency quasi-resonant flyback and forward SMPS topologies in PC silverbox and industrial power supplies. It delivers 9.2 A continuous drain current at T_C=100°C, 94 nC total gate charge, and extreme dv/dt ruggedness up to 50 V/ns.

For engineers reviewing the IPA90R340C3XKSA2 datasheet, IPA90R340C3XKSA2 pinout, IPA90R340C3XKSA2 application, or IPA90R340C3XKSA2 equivalent, key selection criteria include R_DS(on) vs. temperature stability, avalanche energy rating (678 mJ single-pulse), diode reverse recovery performance (t_rr = 510 ns), and thermal resistance (R_thJC = 3.6 K/W).

Technical Context

This CoolMOS™ C3 device employs charge-compensation technology to achieve ultra-low R_DS(on) × Q_g figure-of-merit (0.34 Ω × 94 nC), enabling reduced conduction and switching losses in hard-switched and QR flyback converters. Its 900 V V_(BR)DSS and 50 V/ns dv/dt rating support operation across 400 V DC-link industrial SMPS with robust noise immunity.

The integrated body diode features 0.8–1.2 V forward voltage at 9.2 A and 510 ns reverse recovery time, with 11 µC Q_rr and 41 A peak reverse recovery current-critical for minimizing commutation loss in asymmetric half-bridge and LLC resonant configurations.

Key Specifications

Pinout & Package

Package: PG-TO220 FP (Fullpak), through-hole, isolated tab, 3-pin configuration with drain-connected tab for direct heatsink mounting.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-voltage power switching applications.

Compared with STP9NK90ZFP and IXTH30N90L2, IPA90R340C3XKSA2 uniquely balances ultra-low R_DS(on), moderate Q_g, and engineered diode performance-making it optimal for efficiency-critical, medium-power QR flyback and forward converters where thermal density and EMI are constrained.

Availability

IPA90R340C3XKSA2 is available at Aetrix Electronics and suitable for PC silverbox power supplies, industrial SMPS, consumer LED drivers, and server PSU auxiliary stages requiring stable component supply and long-term lifecycle continuity.

Supply support for IPA90R340C3XKSA2 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 leader specializing in power management, automotive electronics, and industrial control ICs, with over 30 years of high-voltage MOSFET innovation.

The CoolMOS™ C3 product line was engineered specifically for high-efficiency, high-density AC-DC conversion in 100–1000 W applications-emphasizing R_DS(on) × Q_g optimization, ruggedness, and system-level reliability.

FAQ

What is the maximum continuous drain current at 100°C case temperature?

The IPA90R340C3XKSA2 supports 9.2 A continuous drain current at T_C = 100°C, as specified in the Absolute Maximum Ratings table. This rating assumes proper heatsinking with ≤3.6 K/W junction-to-case thermal resistance and operation within the SOA limits defined in Figure 1 of the datasheet.

Does this MOSFET require a gate resistor, and what value is recommended?

Yes-a series gate resistor is required to damp high-frequency oscillation and limit peak gate current. Infineon recommends 23.1 Ω for typical QR flyback operation with 12 V gate drive, based on measured t_d(on)/t_d(off) and ringing suppression data in the dynamic characteristics section.

How does the integrated body diode compare to discrete Schottky diodes in flyback applications?

The integrated diode has 0.8–1.2 V V_SD at 9.2 A and 510 ns t_rr, offering lower cost and smaller footprint than discrete Schottky solutions-but with higher forward drop than SiC Schottky diodes. It is optimized for self-commutating QR flyback, not ultra-high-frequency synchronous rectification.

Is the PG-TO220 FP package electrically isolated, and what insulation voltage does it support?

The PG-TO220 FP package features an electrically isolated drain tab rated for 2500 V_AC isolation (1 minute, per IEC 60747-16). The isolation is achieved via molded compound and internal creepage/clearance design-enabling direct mounting to grounded heatsinks without additional insulation hardware.