Infineon Technologies IPA95R450P7XKSA1

Overview

IPA95R450P7XKSA1 from Infineon is a 950V superjunction MOSFET in the CoolMOS™ P7 family, designed as a high-voltage switching device for primary-side power conversion. It delivers R_DS(on) = 0.45 Ω (max), Q_g = 35 nC (typ), and E_oss = 2.9 µJ at 500 V - optimized for flyback and PFC stages in LED lighting, smart meters, and auxiliary power supplies.

For engineers reviewing the IPA95R450P7XKSA1 datasheet, IPA95R450P7XKSA1 pinout, IPA95R450P7XKSA1 application, or IPA95R450P7XKSA1 equivalent, key selection criteria include its 3 V gate threshold with ±0.5 V variation, integrated Zener-protected gate, 950 V V_DS, and PG-TO220 FP package with drain-connected tab for thermal and electrical performance in high-reliability industrial designs.

Technical Context

This 950 V CoolMOS™ P7 device uses charge compensation technology to achieve low R_DS(on) × E_oss figure-of-merit while maintaining robust dv/dt ruggedness (100 V/ns) and reverse diode commutation speed (50 A/µs). Its 3 V V_GS(th) enables direct drive from standard 3.3 V or 5 V controllers without level-shifting.

The integrated body diode features t_rr = 707 ns and Q_rr = 6 µC at 400 V, supporting soft-switching in flyback topologies. The PG-TO220 FP package provides isolated mounting via plastic body and drain-connected metal tab, enabling efficient heatsinking while maintaining creepage/clearance for 2500 V_rms isolation rating.

Key Specifications

Pinout & Package

IPA95R450P7XKSA1 is housed in PG-TO220 FP (FullPAK), a through-hole package with isolated plastic body and drain-connected metal tab for thermal and electrical interface. Mounting torque: 50 N·cm (M2.5 screws).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPW95R450P7 and STP95N4F6, IPA95R450P7XKSA1 offers optimal balance of isolation safety, ease of assembly, and gate drive simplicity - making it preferred for certified industrial and metering applications where creepage, ESD robustness, and qualification traceability are mandatory.

Availability

IPA95R450P7XKSA1 is available at Aetrix Electronics and suitable for LED lighting drivers, smart meter auxiliary supplies, and industrial auxiliary power converters requiring stable component supply, JEDEC-qualified reliability, and long-term production continuity.

Supply support for IPA95R450P7XKSA1 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, and industrial control ICs and discrete devices.

The CoolMOS™ P7 series targets high-efficiency, high-reliability offline power conversion - specifically engineered for flyback, PFC, and resonant topologies in energy-sensitive and safety-critical applications.

FAQ

Is IPA95R450P7XKSA1 suitable for paralleling in high-current PFC designs?

Yes, but with specific layout requirements: use individual ferrite beads on each gate line and separate totem-pole drivers per device to suppress oscillation. The tight ±0.5 V V_GS(th) tolerance and matched dynamic parameters (C_iss, Q_gd) across units enable balanced current sharing up to 4 devices in parallel under controlled thermal conditions.

What is the maximum recommended gate resistor value for 100 kHz operation?

Based on datasheet switching time measurements (t_d(on) = 10 ns, t_r = 7 ns, t_d(off) = 45 ns, t_f = 5 ns) and Q_g = 35 nC, a 5.3 Ω gate resistor is validated for 400 V V_DD. For 100 kHz operation with 50% duty cycle, R_G ≤ 10 Ω maintains safe SOA margins while limiting peak gate current to <2.5 A.

Does the internal body diode support ZVS in QR flyback designs?

Yes - the body diode's t_rr = 707 ns and Q_rr = 6 µC at 400 V allow controlled zero-voltage switching during valley detection. Its soft recovery characteristic minimizes voltage overshoot and EMI, enabling reliable QR operation without external diode replacement in most 65–130 kHz designs.

Can IPA95R450P7XKSA1 replace older CoolMOS™ C3 or C7 devices in existing designs?

Yes, with minor validation: identical pinout and V_DS/I_D ratings allow drop-in replacement, but lower R_DS(on) and Q_g may require gate resistor adjustment to maintain desired dV/dt and switching speed. Thermal performance improves due to 4.1 °C/W R_thJC, allowing potential reduction in heatsink size.