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

Infineon Technologies IRFP9140N

Name: IRFP9140N
Brand: Infineon Technologies
SKU: IRFP9140N
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFP9140N

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-247-3

Datasheet:: IRFP9140N.pdf

Description:: MOSFET P-CH 100V 23A TO247AC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFP9140N from Infineon Technologies is a P-channel enhancement-mode power MOSFET designed for high-efficiency switching in DC-DC converters, motor drives, and industrial power supplies. It delivers -100V V(BR)DSS, 0.117Ω RDS(on) at -10V VGS, -23A continuous drain current at 25°C, and operates up to +175°C junction temperature - enabling robust operation in high-power, thermally constrained environments such as industrial motor control inverters.

For engineers reviewing the IRFP9140N datasheet, IRFP9140N pinout, IRFP9140N application, or IRFP9140N equivalent, key selection criteria include its fully avalanche-rated capability (430 mJ single-pulse), fast switching performance (td(on) = 15 ns, tf = 51 ns), TO-247AC package thermal resistance (RθJC = 1.1°C/W), and body diode recovery characteristics (trr = 150–220 ns).

Technical Context

This device employs Infineon's Fifth Generation HEXFET process, delivering optimized cell density and reduced specific on-resistance. Its P-channel architecture enables high-side switching without level-shifting circuitry in buck or synchronous rectifier topologies.

The MOSFET supports unclamped inductive switching with validated avalanche energy ratings (EAS = 430 mJ, IAR = -11 A) and features dynamic dv/dt immunity (-5.0 V/ns), critical for noise-immune operation in high-di/dt motor drive and SMPS applications.

Key Specifications

Parameter	Value and Actual Design Meaning
V(BR)DSS	-100 V - Withstands reverse-biased drain-source voltage up to rated breakdown without conduction.
RDS(on) max	0.117 Ω @ VGS = -10 V, ID = -13 A - Enables low conduction loss in high-current P-channel switch designs.
ID (25°C)	-23 A - Supports continuous load current in industrial power stages with adequate heatsinking.
EAS	430 mJ - Allows safe energy absorption during unclamped inductive turn-off events without failure.
trr / Qrr	150–220 ns / 830–1200 nC - Defines body diode recovery behavior in synchronous rectification or freewheeling paths.
RθJC	1.1 °C/W - Enables efficient heat transfer from junction to heatsink in TO-247AC mounting configuration.
dv/dt rating	-5.0 V/ns - Ensures immunity to false triggering during rapid voltage transients across drain-source.

Pinout & Package

IRFP9140N uses the TO-247AC package - a through-hole, isolated-mount power package with 3 terminals: Drain (tab), Source (pin 1), and Gate (pin 2). The metal tab is electrically connected to the Drain, requiring insulated mounting hardware.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main high-current output path	Electrically tied to metal tab; must be electrically isolated from heatsink unless referenced to system ground.
Source (Pin 1)	Reference node for gate drive and current return	Connects to common rail; defines VGS reference point and carries full load current back to supply.
Gate (Pin 2)	Control input for channel modulation	Receives negative VGS (-10 V typical) to fully enhance P-channel channel; requires low-impedance driver due to 97 nC total gate charge.

Key Features

Feature	Design Value
Fully avalanche rated	430 mJ single-pulse energy handling ensures reliability under inductive switching stress without external snubbers.
175°C maximum junction temperature	Enables operation in sealed enclosures or high-ambient industrial environments without derating penalties.
Fast switching speed	15 ns turn-on delay + 51 ns fall time reduces switching losses in 50–200 kHz SMPS and motor PWM stages.
Dynamic dv/dt immunity	-5.0 V/ns rating prevents spurious turn-on during high-slew-rate transients in half-bridge or H-bridge configurations.
Lead-free construction	Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profile requirements.

Applications

Industrial Motor Drives

High-Voltage DC-DC Converters

Use Scenario: Half-bridge high-side switch in 48–100 V BLDC motor controllers for factory automation.

IC Role / Device Role / Timing Role: P-channel high-side power switch controlling phase voltage with gate driven by isolated level shifter.

Use Value: Eliminates need for bootstrap capacitors or floating gate drivers while maintaining <100 ns dead-time control via fast turn-off (tf = 51 ns).

Use Scenario: Synchronous rectifier in isolated flyback or forward converter for telecom power supplies.

IC Role / Device Role / Timing Role: Body diode and channel used for low-loss current return path during secondary-side conduction interval.

Use Value: 0.117 Ω RDS(on) and 150–220 ns trr reduce conduction and recovery losses versus Schottky alternatives at >60 V output.

Uninterruptible Power Supplies (UPS)

Industrial AC/DC Front-End Rectification

Use Scenario: Battery disconnect switch and inverter stage protection in line-interactive UPS systems.

IC Role / Device Role / Timing Role: High-reliability isolation switch activated during grid failure or overload conditions.

Use Value: Fully avalanche-rated design absorbs stored inductor energy during fault shutdown without failure (EAS = 430 mJ).

Use Scenario: Active rectification in three-phase PFC pre-regulators for industrial PLC power modules.

IC Role / Device Role / Timing Role: P-channel switch operating in synchronous rectifier mode to replace diode bridges.

Use Value: Reduces conduction loss by >40% vs. 100 V diodes at 15 A average current, improving efficiency from 92% to 95.2%.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRF9540NPbF	Higher RDS(on) = 0.2 Ω, lower ID = -19 A, same TO-247AC package	Lower power density; suitable only for <15 A continuous loads	Select when cost sensitivity outweighs efficiency needs and thermal margin is ample.
STP9NK90ZFP	Zener-protected gate, 900 V rating, RDS(on) = 1.2 Ω, TO-220FP package	Higher voltage capability but higher on-resistance and inferior thermal performance (RθJC = 2.5°C/W)	Choose only for ultra-high-voltage (>600 V) ZVS or resonant topologies where 100 V rating is insufficient.

Compared with IRF9540NPbF and STP9NK90ZFP, IRFP9140N offers the optimal balance of low on-resistance (0.117 Ω), high current capacity (-23 A), and proven avalanche ruggedness - making it the preferred choice for thermally demanding, medium-voltage industrial switching where efficiency and reliability are co-prioritized.

Availability

IRFP9140N is available at Aetrix Electronics and suitable for industrial motor drives, high-voltage DC-DC converters, uninterruptible power supplies (UPS), and active rectification circuits requiring stable component supply and long-term production continuity.

Supply support for IRFP9140N 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 IRFP9140N belongs to Infineon's Fifth Generation HEXFET® Power MOSFET product line, engineered specifically for high-efficiency, high-reliability switching in industrial power conversion and motor control systems.

FAQ

Is IRFP9140N suitable for synchronous rectification in a 48 V output DC-DC converter?

Yes. With 0.117 Ω RDS(on) at -10 V VGS and 150–220 ns body diode reverse recovery, IRFP9140N reduces conduction and switching losses versus Schottky diodes in 48 V secondary-side rectification. Its P-channel topology simplifies gate drive in low-side configurations, and thermal resistance (RθJC = 1.1°C/W) supports sustained 20 A operation with proper heatsinking.

What is the recommended gate resistor value for hard-switching at 100 kHz?

A 5.1 Ω gate resistor is validated in the datasheet for switching characterization (td(off) = 51 ns, tf = 51 ns). For 100 kHz hard-switching, this value balances EMI control and switching loss. Lower values (≤2.2 Ω) may be used with gate drivers capable of ±2 A peak current to further reduce turn-off time, provided layout minimizes parasitic inductance.

Does IRFP9140N require a heatsink in a 15 A continuous application?

Yes. At 15 A and 0.117 Ω RDS(on), conduction loss is ~26 W. With RθJC = 1.1°C/W and ambient ≤50°C, even a modest heatsink (RθSA ≈ 1.5°C/W) is required to keep TJ below 175°C. Without forced air, a minimum 50 cm² aluminum heatsink with thermal interface material is recommended per the SOA curves in Figure 8.

Can IRFP9140N replace IRF9540N in an existing design?

Yes, with validation. IRFP9140N offers lower RDS(on) (0.117 Ω vs. 0.2 Ω), higher ID (-23 A vs. -19 A), and superior avalanche rating (430 mJ vs. 200 mJ). Gate threshold and charge are similar, so existing gate drivers usually suffice. However, verify layout thermal margins and SOA compliance under worst-case inductive loads due to higher peak current capability.

IRFP9140N Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-247-3

Packaging:: Bag

Product Status:: Obsolete

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

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

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

Rds On (Max) @ Id, Vgs:: 117mOhm @ 13A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 97 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 1300 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 140W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: TO-247AC

IRFP9140N FAQ

1.How can I place an order for IRFP9140N through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFP9140N 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 IRFP9140N reliable?

The price and inventory of IRFP9140N are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFP9140N is usually 5 days.

3.What payment methods are accepted for IRFP9140N?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFP9140N transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFP9140N?

IRFP9140N orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFP9140N 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 IRFP9140N?

For technical support, including IRFP9140N datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFP9140N requirements.

6.How does Aetrix verify that IRFP9140N is sourced from the original manufacturer or authorized distributors?

All IRFP9140N 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 IRFP9140N meets industry standards.

7.What is the process for return or replacement of IRFP9140N?

All IRFP9140N units undergo pre-shipment inspection (PSI). If there is an issue with IRFP9140N, 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 IRFP9140N part is unused and in its original packaging.

Return procedure for IRFP9140N:

1.Submit a request within 90 days.

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

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