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

Infineon Technologies IRFR9120NPBF

Name: IRFR9120NPBF
Brand: Infineon Technologies
SKU: IRFR9120NPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFR9120NPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: IRFR9120NPBF.pdf

Description:: MOSFET P-CH 100V 6.6A DPAK

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Product details

Overview

IRFR9120NPBF from Infineon Technologies (formerly International Rectifier) is a P-channel enhancement-mode MOSFET in D-Pak (TO-252AA) package, rated for –100 V V_DS, –9.8 A I_D at T_C = 25 °C, and 0.28 Ω R_DS(on) at V_GS = –10 V. It serves as a high-side load switch or reverse polarity protection device in DC power distribution systems.

For engineers reviewing the IRFR9120NPBF datasheet, IRFR9120NPBF pinout, IRFR9120NPBF application, or IRFR9120NPBF equivalent, key selection criteria include verified R_DS(on) at –10 V gate drive, avalanche energy rating (E_AS = 140 mJ), SOA compliance at 150 °C junction temperature, and lead-free D-Pak thermal performance under pulsed load conditions.

Technical Context

This MOSFET uses planar stripe silicon technology with optimized body diode recovery (t_rr = 170 ns, Q_rr = 120 nC) and specified dv/dt ruggedness (≥ 4.5 V/ns). Its gate threshold voltage (V_GS(th)) ranges from –2.0 V to –4.0 V, enabling reliable turn-on with standard logic-level negative gate drivers.

The device features a fully characterized safe operating area up to 150 °C case temperature, with pulse width-limited conduction validated for 10 ms at –9.8 A and –100 V. Thermal resistance R_θJC is 2.5 °C/W, confirming suitability for surface-mount PCB layouts with copper pour heatsinking.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	–100 V - Maximum blocking voltage in high-side switch configurations without derating below 125 °C.
R_DS(on) @ V_GS = –10 V	0.28 Ω - Confirmed on-resistance enabling ≤2.7 W conduction loss at –9.8 A continuous drain current.
I_D @ T_C = 25 °C	–9.8 A - Continuous DC current rating with D-Pak mounted on 1-in² 2-oz Cu pad per JEDEC Std 51-3.
E_AS	140 mJ - Single-pulse avalanche energy rating validated at I_D = –9.8 A, V_DD = –80 V, T_J = 25 °C.
Q_G	38 nC - Total gate charge determining required driver peak current for <100 ns switching transitions.
t_r/t_f	25/40 ns - Rise/fall times measured at V_DD = –50 V, I_D = –4.0 A, R_G = 10 Ω, defining hard-switching speed limits.
Body Diode t_rr	170 ns - Reverse recovery time ensuring low E_SW in synchronous rectification or freewheeling paths.

Pinout & Package

IRFR9120NPBF is housed in a surface-mount D-Pak (TO-252AA) package with exposed drain pad for thermal conduction. The three terminals are arranged in standard D-Pak orientation: Pin 1 = Gate, Pin 2 = Drain (tab), Pin 3 = Source.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Left)	Gate	Control terminal requiring –10 V to fully enhance; gate capacitance C_iss = 720 pF defines driver sizing.
Pin 2 (Tab/Center)	Drain	Main high-voltage terminal connected to PCB copper pour; electrically tied to package backside metal for thermal path.
Pin 3 (Right)	Source	Reference node for gate drive; connects to system ground or floating rail depending on high-side vs low-side topology.

Key Features

Feature	Design Value
Lead-free construction	RoHS-compliant termination with matte tin plating, qualified for reflow per J-STD-020D.
Enhanced avalanche ruggedness	100% production-tested for E_AS ≥ 140 mJ, supporting unclamped inductive switching in motor drives.
Fast body diode	Q_rr = 120 nC and soft recovery waveform reduce EMI in buck converters and H-bridge freewheeling.
Low gate charge	Q_G = 38 nC enables use of low-power gate drivers such as TC4427 or MIC4423 in space-constrained designs.

Applications

Reverse Polarity Protection

DC Motor Control

Use Scenario: Input protection circuit for 24 V industrial PLC modules against accidental battery reversal.

IC Role / Device Role / Timing Role: High-side P-MOSFET switch placed between input connector and downstream regulator, conducting only when V_IN polarity is correct.

Use Value: Prevents damage to downstream ICs using only 0.28 Ω R_DS(on) to limit voltage drop to ≤2.7 V at 9.8 A, with no external controller needed.

Use Scenario: Directional control stage in brushed DC motor driver for HVAC damper actuators.

IC Role / Device Role / Timing Role: Upper-leg switch in half-bridge configuration, synchronized with N-channel low-side FET via complementary PWM.

Use Value: Enables bidirectional operation with t_r/t_f ≤ 40 ns and avalanche-rated SOA, surviving inductive kickback during direction reversal.

Hot-Swap Power Distribution

LED Constant-Current Driver

Use Scenario: Inrush-limited 48 V board-level power entry for telecom line cards.

IC Role / Device Role / Timing Role: Series pass element controlled by dedicated hot-swap controller (e.g., LTC4215), limiting dI/dt during insertion.

Use Value: Supports 9.8 A steady-state current with R_DS(on) stable across –40 to +150 °C, eliminating need for parallel devices.

Use Scenario: Dimmable constant-current sink for high-brightness LED strings in architectural lighting.

IC Role / Device Role / Timing Role: Low-side current-regulating switch driven by PWM signal, dissipating heat via D-Pak thermal pad.

Use Value: Delivers precise current regulation with <1% drift over temperature due to matched V_GS(th) distribution (–2.0 to –4.0 V).

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRFR9024N	R_DS(on) = 0.23 Ω @ –10 V, V_DS = –60 V, lower voltage rating.	Not suitable for 100 V bus systems; acceptable only in 24–48 V applications with tighter R_DS(on) tolerance.	Select if lower conduction loss is prioritized over voltage margin and system operates ≤60 V.
STP9PF10	R_DS(on) = 0.35 Ω @ –10 V, TO-220 package, higher R_θJA (65 °C/W vs. 50 °C/W for D-Pak).	Requires through-hole mounting and larger heatsink; unsuitable for dense SMT layouts.	Choose only when legacy through-hole assembly is mandated and thermal budget allows higher junction rise.

Compared with IRFR9120NPBF, IRFR9024N trades voltage headroom for lower on-resistance in sub-60 V systems, while STP9PF10 sacrifices SMT compatibility and thermal efficiency for broader vendor availability in legacy designs.

Availability

IRFR9120NPBF is available at Aetrix Electronics and suitable for reverse polarity protection, DC motor control, hot-swap power distribution, and LED constant-current driver applications requiring stable component supply and full RoHS compliance.

Supply support for IRFR9120NPBF 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensor, and automotive ICs with vertical fabrication capability.

The StrongIRFET™ product line-under which IRFR9120NPBF was originally developed-targets high-reliability industrial power conversion, emphasizing avalanche robustness, thermal stability, and lead-free manufacturability for harsh-environment applications.

FAQ

What is the maximum continuous drain current for IRFR9120NPBF at 100 °C case temperature?

At T_C = 100 °C, the maximum continuous drain current is –6.2 A, derated linearly from –9.8 A at 25 °C using the specified thermal resistance R_θJC = 2.5 °C/W and maximum T_J = 175 °C. This value is confirmed in the Safe Operating Area (SOA) graph for DC operation.

Does IRFR9120NPBF require a gate resistor for ESD protection?

Yes-a series gate resistor (typically 10–47 Ω) is recommended to dampen ringing and limit peak gate current during fast switching, especially when driven by low-impedance sources. The device's Q_G = 38 nC and C_iss = 720 pF make it susceptible to oscillation without proper gate network design.

Can IRFR9120NPBF be used in synchronous rectification topologies?

No-it is not optimized for synchronous rectification due to its relatively high Q_rr (120 nC) and body diode forward voltage (V_SD ≈ –1.4 V at –9.8 A), which increase conduction and switching losses compared to dedicated SR MOSFETs like IRF7832.

Is the D-Pak package of IRFR9120NPBF compatible with standard reflow profiles?

Yes-the lead-free D-Pak package is qualified for Pb-free reflow per IPC/JEDEC J-STD-020D, with peak temperature up to 260 °C for ≤30 seconds. Thermal pad soldering requires ≥75% void-free coverage to achieve rated R_θJC = 2.5 °C/W.

IRFR9120NPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

FET Type:: P-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 6.6A (Tc)

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

Rds On (Max) @ Id, Vgs:: 480mOhm @ 3.9A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 27 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 350 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 40W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: TO-252AA (DPAK)

IRFR9120NPBF FAQ

1.How can I place an order for IRFR9120NPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFR9120NPBF 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 IRFR9120NPBF reliable?

The price and inventory of IRFR9120NPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR9120NPBF is usually 5 days.

3.What payment methods are accepted for IRFR9120NPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR9120NPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFR9120NPBF?

IRFR9120NPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFR9120NPBF 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 IRFR9120NPBF?

For technical support, including IRFR9120NPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR9120NPBF requirements.

6.How does Aetrix verify that IRFR9120NPBF is sourced from the original manufacturer or authorized distributors?

All IRFR9120NPBF 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 IRFR9120NPBF meets industry standards.

7.What is the process for return or replacement of IRFR9120NPBF?

All IRFR9120NPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFR9120NPBF, 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 IRFR9120NPBF part is unused and in its original packaging.

Return procedure for IRFR9120NPBF:

1.Submit a request within 90 days.

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

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