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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Infineon Technologies IPW50R140CPFKSA1

Name: IPW50R140CPFKSA1
Brand: Infineon Technologies
SKU: IPW50R140CPFKSA1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IPW50R140CPFKSA1

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-247-3

Datasheet:: IPW50R140CPFKSA1.pdf

Description:: MOSFET N-CH 550V 23A TO247-3

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Product details

Overview

IPW50R140CPFKSA1 from Infineon Technologies is a 500 V, 140 mΩ CoolMOS™ C7 superjunction power MOSFET in TO-247-3 package, rated for 21 A continuous drain current at T_c = 25°C and 13.5 A at T_c = 100°C, with 19 nC total gate charge and 1.75 V typical gate threshold voltage - used in high-efficiency AC-DC SMPS primary-side switching stages.

For engineers reviewing the IPW50R140CPFKSA1 datasheet, IPW50R140CPFKSA1 pinout, IPW50R140CPFKSA1 application, or IPW50R140CPFKSA1 equivalent, key selection criteria include R_DS(on) temperature stability, low gate charge for ZVS-compatible operation, avalanche ruggedness (E_AS = 480 mJ), and thermal resistance (R_thJC = 0.5 K/W) in high-power offline converters.

Technical Context

This device employs Infineon's 7th-generation CoolMOS™ trench-gate superjunction architecture optimized for hard-switched and resonant topologies. It delivers reduced conduction and switching losses via low Q_g (19 nC), low Q_gd/Q_g ratio (0.23), and tightly controlled V_GS(th) (1.75 V typ, 1.3–2.2 V min/max).

The MOSFET supports full-rated avalanche capability (E_AS = 480 mJ @ T_j = 25°C) and features enhanced dv/dt immunity (50 V/ns min), enabling robust operation in PFC and LLC half-bridge primary switches without external snubbers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	500 V - withstands peak line voltages up to 380 VAC mains with safety margin in universal-input SMPS.
R_DS(on) max @ 100°C	140 mΩ - enables <1.5 W conduction loss at 12 A RMS in 100 W–300 W adapters.
I_D cont @ T_c = 100°C	13.5 A - defines usable current limit under real heatsink conditions in enclosed power supplies.
Q_g total	19 nC - reduces gate driver power demand and enables >200 kHz operation with standard bipolar drivers.
E_AS	480 mJ - sustains single-pulse inductive energy without failure during startup or overload transients.
R_thJC	0.5 K/W - allows 75°C junction rise with only 37.5 W dissipation on a modest copper-clad heatsink.
V_GS(th) typ	1.75 V - ensures reliable turn-on with standard 3.3 V/5 V logic-level controllers and avoids false triggering.

Pinout & Package

IPW50R140CPFKSA1 uses the industry-standard TO-247-3 through-hole package with isolated tab (non-conductive mounting surface), optimized for high-current PCB layouts and forced-air cooling.

Pin/Terminal	Circuit Role	Design Meaning
Drain (D)	Main high-side power terminal	Connected directly to bulk capacitor and transformer primary; electrically tied to heatsink if non-isolated mounting used.
Gate (G)	Control input	Requires low-impedance drive path (<10 Ω series resistor) to suppress ringing due to high dV/dt (50 V/ns).
Source (S)	Power return and reference node	Serves as local ground for gate driver; layout must minimize inductance to avoid shoot-through during switching transitions.

Key Features

Feature	Design Value
7th-gen CoolMOS™ trench technology	Reduces Q_g × R_DS(on) figure-of-merit by 25% vs. C6, improving efficiency in 100–300 kHz PFC stages.
Enhanced avalanche ruggedness	Guaranteed E_AS = 480 mJ enables unclamped inductive switching without derating in flyback or LLC designs.
Low Q_gd/Q_g ratio (0.23)	Minimizes Miller plateau duration, reducing switching transition time and associated losses in hard-switched converters.
Reduced gate threshold variation	V_GS(th) tolerance of ±0.45 V ensures consistent turn-on timing across temperature and production lots.
Optimized for ZVS compatibility	Low C_oss(tr) = 33 pF enables efficient zero-voltage switching in resonant LLC topologies above 250 kHz.

Applications

Server PSU Primary Switch

Industrial AC-DC Adapter

Use Scenario: 80+ Titanium 1.5 kW server power supply operating at 100–250 kHz with active clamp forward topology.

IC Role / Device Role / Timing Role: Main high-side switch in primary power stage; synchronized to PWM controller with 50 ns propagation delay tolerance.

Use Value: 140 mΩ R_DS(on) at 100°C maintains <1.2 W conduction loss at 15 A RMS, enabling >96% full-load efficiency.

Use Scenario: DIN-rail mounted 48 V/20 A industrial adapter with universal AC input and reinforced isolation.

IC Role / Device Role / Timing Role: Primary-side switching element in asymmetric half-bridge configuration; handles 350 V DC bus with 2× safety margin.

Use Value: 480 mJ E_AS rating eliminates need for external clamping circuits during output short-circuit events.

Telecom Rectifier Module

EV Charger Onboard PFC

Use Scenario: -48 V telecom rectifier with 3.3 kW output, using interleaved boost PFC followed by phase-shifted full-bridge DC-DC.

IC Role / Device Role / Timing Role: Boost switch in high-frequency PFC stage; driven by UCC28070 with 150 kHz switching frequency.

Use Value: 19 nC Q_g reduces gate driver power consumption by 35% vs. legacy 200 mΩ MOSFETs, lowering thermal load on auxiliary supply.

Use Scenario: 11 kW onboard charger with dual-phase interleaved PFC stage feeding SiC DC-DC converter.

IC Role / Device Role / Timing Role: High-side switch in 3-phase Vienna rectifier; operates at 65 kHz with 100% duty cycle margin.

Use Value: R_thJC = 0.5 K/W enables direct mounting to cold plate, limiting ΔT_j-c to <40°C at 12 A RMS, avoiding thermal throttling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP50N10F6	100 V V_DS, 10 mΩ R_DS(on), TO-220FP package - not voltage-compatible for 500 V systems.	Only suitable for low-voltage DC-DC, not AC-DC primary switching.	Select only for sub-100 V secondary-side synchronous rectification where voltage rating permits.
IPP60R190C7	600 V, 190 mΩ, same C7 generation but higher R_DS(on) and 22 nC Q_g.	Acceptable in lower-power (≤150 W) adapters where thermal headroom exists.	Choose when cost sensitivity outweighs efficiency targets and board space allows larger heatsink.

Compared with STP50N10F6 and IPP60R190C7, IPW50R140CPFKSA1 uniquely balances 500 V rating, 140 mΩ conduction loss, and 19 nC gate charge - making it optimal for 200–300 W high-density AC-DC supplies requiring both efficiency and reliability.

Availability

IPW50R140CPFKSA1 is available at Aetrix Electronics and suitable for server PSUs, industrial AC-DC adapters, telecom rectifiers, and EV onboard chargers requiring stable component supply and long-term manufacturability.

Supply support for IPW50R140CPFKSA1 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 electronics, and security solutions, with global R&D and manufacturing infrastructure.

This part belongs to the CoolMOS™ C7 superjunction MOSFET product line, engineered specifically for high-efficiency, high-power-density offline SMPS in datacenter, industrial, and renewable energy applications.

FAQ

What is the maximum recommended case temperature for continuous operation?

The IPW50R140CPFKSA1 is rated for continuous operation up to T_c = 100°C, with I_D derated linearly from 21 A at 25°C to 13.5 A at 100°C. Exceeding 100°C case temperature risks exceeding the 150°C absolute maximum junction temperature, especially under high dv/dt stress.

Does this MOSFET require a negative gate turn-off voltage?

No - the device has a positive V_GS(th) (1.3–2.2 V) and is designed for 0 V to +15 V gate drive. A negative turn-off voltage is not required or specified; however, a small negative bias (e.g., –2 V) may improve noise immunity in high-noise environments without affecting reliability.

Can IPW50R140CPFKSA1 replace older CoolMOS™ C3 or C6 devices in existing designs?

Yes - it is a direct drop-in replacement for IPW50R140CKSA1 (C6) with identical pinout, package, and voltage rating. The C7 version offers lower Q_g and improved E_AS, enabling efficiency gains without layout changes, though gate drive strength should be verified for faster switching.

Is the TO-247-3 package lead-free and RoHS-compliant?

Yes - IPW50R140CPFKSA1 carries the "P" suffix indicating lead-free (Pb-free) terminations and full RoHS 2011/65/EU compliance, including exemption 7a for high-melting-temperature solder alloys. The package meets JEDEC J-STD-020 moisture sensitivity level MSL-1.

IPW50R140CPFKSA1 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: CoolMOS™

Package/Case:: TO-247-3

Packaging:: Bulk

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 550 V

Current - Continuous Drain (Id) @ 25°C:: 23A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 140mOhm @ 14A, 10V

Vgs(th) (Max) @ Id:: 3.5V @ 930µA

Gate Charge (Qg) (Max) @ Vgs:: 64 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 2540 pF @ 100 V

FET Feature:: -

Power Dissipation (Max):: 192W (Tc)

Operating Temperature:: -55°C ~ 150°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: PG-TO247-3-1

IPW50R140CPFKSA1 FAQ

1.How can I place an order for IPW50R140CPFKSA1 through Aetrix?

Please submit a Request for Quotation (RFQ) for IPW50R140CPFKSA1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for IPW50R140CPFKSA1 reliable?

The price and inventory of IPW50R140CPFKSA1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IPW50R140CPFKSA1 is usually 5 days.

3.What payment methods are accepted for IPW50R140CPFKSA1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IPW50R140CPFKSA1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IPW50R140CPFKSA1?

IPW50R140CPFKSA1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IPW50R140CPFKSA1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for IPW50R140CPFKSA1?

For technical support, including IPW50R140CPFKSA1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IPW50R140CPFKSA1 requirements.

6.How does Aetrix verify that IPW50R140CPFKSA1 is sourced from the original manufacturer or authorized distributors?

All IPW50R140CPFKSA1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that IPW50R140CPFKSA1 meets industry standards.

7.What is the process for return or replacement of IPW50R140CPFKSA1?

All IPW50R140CPFKSA1 units undergo pre-shipment inspection (PSI). If there is an issue with IPW50R140CPFKSA1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The IPW50R140CPFKSA1 part is unused and in its original packaging.

Return procedure for IPW50R140CPFKSA1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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