Infineon Technologies IPA80R310CEXKSA2

Overview

IPA80R310CEXKSA2 from Infineon Technologies is an 800 V, 310 mΩ R_DS(on) CoolMOS™ CE superjunction power MOSFET in TO-220 FullPAK package, optimized for quasi-resonant flyback converters in LED lighting and AC/DC adapters. It delivers 51 A pulsed drain current, 91 nC gate charge, and 400 A/µs body diode di/dt capability with extreme dv/dt ruggedness (50 V/ns).

For engineers reviewing the IPA80R310CEXKSA2 datasheet, IPA80R310CEXKSA2 pinout, IPA80R310CEXKSA2 application, or IPA80R310CEXKSA2 equivalent, key selection criteria include high-voltage switching stability, low conduction and switching losses in QR flyback topologies, gate drive compatibility at 10 V, and thermal performance under continuous 16.7 A operation at T_C = 25°C.

Technical Context

This device implements Infineon's CoolMOS™ CE silicon technology, featuring a charge-compensated superjunction structure enabling high breakdown voltage (800 V) with low specific on-resistance (310 mΩ). Its dynamic characteristics include C_iss = 2320 pF, C_oss = 90 pF, and Q_gd = 46 nC, supporting fast switching with controlled EMI in high-frequency QR operation.

The MOSFET integrates a robust intrinsic body diode with t_rr = 550 ns and Q_rr = 15 µC at 400 V reverse bias, enabling reliable zero-voltage switching (ZVS) transitions. Its 3.6 °C/W R_thJC and 2500 V_RMS isolation rating support safe, thermally stable mounting in compact, insulated power supplies.

Key Specifications

Pinout & Package

IPA80R310CEXKSA2 uses the TO-220 FullPAK (PG-TO220-3-1) package with isolated tab. The plastic body provides creepage/clearance compliance, while the copper leadframe ensures low thermal resistance (R_thJC = 3.6 °C/W) and high power density.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IPW60R041P7XKSA1 and STP80NF55-08, IPA80R310CEXKSA2 uniquely balances 800 V capability, low E_oss, and verified 50 V/ns dv/dt immunity-making it the only option qualified for universal-input QR flyback designs demanding both efficiency and robustness.

Availability

IPA80R310CEXKSA2 is available at Aetrix Electronics and suitable for LED lighting drivers, USB-C adapters, and industrial control power supplies requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for IPA80R310CEXKSA2 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.

This part belongs to the CoolMOS™ CE family, engineered specifically for high-efficiency, high-reliability quasi-resonant and soft-switching offline power supplies targeting consumer and industrial lighting markets.

FAQ

What is the maximum continuous drain current for IPA80R310CEXKSA2 at 100°C case temperature?

The maximum continuous drain current is 10.6 A at T_C = 100°C, as specified in Table 2 of the Rev. 2.1 datasheet. This value is thermally limited by the 150°C maximum junction temperature and the 3.6 °C/W junction-to-case thermal resistance. Operation above this current requires forced cooling or derating based on actual thermal design.

Does IPA80R310CEXKSA2 require a negative gate voltage for reliable turn-off?

No. The device specifies a static gate-source voltage range of ±20 V and a dynamic range of ±30 V, but reliable turn-off is achieved with 0 V gate drive. Its gate threshold voltage (2.1–3.9 V) ensures full depletion at 0 V, and no negative bias is required for standard QR flyback operation per Infineon's application notes.

Can IPA80R310CEXKSA2 be paralleled with identical units?

Yes, but with strict layout controls: gate resistors must be individually placed close to each device, and ferrite beads on each gate line are recommended to suppress oscillation. Parallel operation also requires matched PCB trace lengths and symmetric thermal mounting to avoid current imbalance due to R_DS(on) drift with temperature.

Is the TO-220 FullPAK package electrically isolated?

The TO-220 FullPAK package features an electrically isolated drain tab: Pin 2 and the metal tab are internally connected to Drain, but the plastic body provides 2500 V_RMS isolation between tab and leads. Mounting requires an insulating washer and thermal interface material to maintain safety isolation while enabling heat transfer to the heatsink.