Infineon Technologies IPW50R250CPFKSA1

Overview

IPW50R250CPFKSA1 from Infineon Technologies is a 500 V, 14 A, 250 mΩ CoolMOS™ C7 superjunction power MOSFET in TO-247-3 package, optimized for high-efficiency hard-switched and resonant SMPS topologies including LLC and PFC stages. It delivers low conduction and switching losses with 100% avalanche-rated ruggedness and enhanced body diode softness for reliable operation in server, telecom, and industrial AC-DC power supplies.

For engineers reviewing the IPW50R250CPFKSA1 datasheet, IPW50R250CPFKSA1 pinout, IPW50R250CPFKSA1 application, or IPW50R250CPFKSA1 equivalent, key selection criteria include R_DS(on) at 10 V gate drive, E_oss and Q_g values for ZVS/ZCS design, avalanche energy rating (E_AS), thermal resistance (R_thJC), and body diode reverse recovery charge (Q_rr) in high-frequency PFC circuits.

Technical Context

This device implements CoolMOS™ C7 technology with optimized charge balance and trench-gate structure to reduce both static and dynamic losses. Its 500 V blocking voltage supports universal input (85–265 VAC) front-end designs, while the 250 mΩ R_DS(on) at V_GS = 10 V enables high-power density in 1–3 kW systems.

The MOSFET features a fast, soft-recovery body diode (Q_rr = 190 nC, t_rr = 210 ns) and low gate charge (Q_g = 42 nC, Q_gd = 11 nC), enabling efficient operation in continuous conduction mode (CCM) PFC and asymmetric half-bridge LLC converters without external snubbers.

Key Specifications

Pinout & Package

IPW50R250CPFKSA1 is housed in a standard TO-247-3 plastic package with isolated tab, rated for 30 A peak solder temperature and RoHS-compliant lead-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STP50N50F3 and IXFH50N50P, IPW50R250CPFKSA1 provides superior high-frequency efficiency and reliability in resonant and CCM PFC due to its lower E_oss, soft diode, and guaranteed avalanche performance - making it optimal for space-constrained, high-efficiency server and telecom power supplies.

Availability

IPW50R250CPFKSA1 is available at Aetrix Electronics and suitable for server power supplies, telecom rectifiers, and industrial motor drive inverters requiring stable component supply and long-term lifecycle support.

Supply support for IPW50R250CPFKSA1 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 manufacturer specializing in power management, automotive microcontrollers, and security solutions, with global R&D and wafer fabrication facilities.

This part belongs to the CoolMOS™ C7 family, engineered specifically for high-efficiency, high-density AC-DC conversion in datacenter, telecom, and industrial power systems where low R_DS(on), low E_oss, and soft body diode recovery are essential.

FAQ

What is the maximum recommended gate-source voltage for IPW50R250CPFKSA1?

The absolute maximum V_GS is ±30 V, but the device is characterized and optimized for operation between 10 V and 15 V. Driving above 15 V yields diminishing R_DS(on) improvement while increasing gate oxide stress and risk of spurious turn-on during high dV/dt events. For robust operation, 12–15 V is recommended with active Miller clamp or negative turn-off bias.

Does IPW50R250CPFKSA1 require a gate resistor, and what value is typical?

Yes - a gate resistor is required to control switching speed, suppress oscillation, and limit peak gate current. A value between 5 Ω and 15 Ω is typical for 65–100 kHz PFC applications. Lower values (5–8 Ω) suit ZVS LLC where fast turn-on is beneficial; higher values (10–15 Ω) reduce EMI in CCM PFC. Layout parasitics must be minimized regardless of R_G choice.

Can IPW50R250CPFKSA1 replace older CoolMOS™ C3 or C6 devices in existing designs?

Yes - it is a direct drop-in replacement for IPW50R280C6 and IPW50R330C3 in most cases due to identical TO-247-3 footprint, pinout, and V_DS/I_D ratings. However, its lower R_DS(on) and Q_g may increase dV/dt stress on gate drivers; verify driver capability and add minor gate damping if ringing occurs. Thermal design remains compatible.

Is the metal tab of IPW50R250CPFKSA1 electrically connected to the drain?

Yes - the TO-247-3 package's metal tab is internally connected to the drain terminal. This requires electrical isolation from heatsinks using insulating pads or ceramic washers unless the heatsink is floating or referenced to the high-side bus. Thermal interface material must maintain dielectric strength ≥2 kV RMS to meet safety standards.