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

Infineon Technologies IRFR120NCPBF

Name: IRFR120NCPBF
Brand: Infineon Technologies
SKU: IRFR120NCPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRFR120NCPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRFR120NCPBF.pdf

Description:: MOSFET N-CH 100V 9.4A DPAK

Quantity:: RFQ Add To RFQ list

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Product details

Overview

IRFR120NCPBF from Infineon Technologies (formerly International Rectifier) is a 100 V, 7.5 A, N-channel enhancement-mode MOSFET in the TO-252AA (DPAK) surface-mount package, featuring 0.27 Ω R_DS(on) at V_GS = 10 V and 140 °C junction temperature, optimized for DC-DC converters and motor control in industrial power supplies.

For engineers reviewing the IRFR120NCPBF datasheet, IRFR120NCPBF pinout, IRFR120NCPBF application, or IRFR120NCPBF equivalent, key selection criteria include its low gate charge (Q_g = 18 nC), fast switching speed (t_on = 15 ns, t_off = 35 ns), and lead-free RoHS-compliant construction per JEDEC J-STD-020.

Technical Context

This MOSFET employs planar silicon technology with a trench-enhanced gate structure to achieve stable threshold voltage (V_GS(th) = 2.0–4.0 V) and robust avalanche energy rating (E_AS = 115 mJ). It supports unclamped inductive switching and operates reliably across –55 °C to +175 °C junction range.

The device uses standard logic-level gate drive compatibility (V_GS = 4.5 V yields R_DS(on) ≤ 0.38 Ω), enabling direct interface with microcontroller GPIOs and PWM controllers without level-shifting circuitry.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	100 V - maximum drain-source blocking voltage for 24/48 V bus systems
I_D (continuous)	7.5 A @ T_C = 100 °C - sustained current capability with heatsink
R_DS(on)	0.27 Ω @ V_GS = 10 V, T_J = 140 °C - low conduction loss in high-efficiency SMPS
Q_g	18 nC - enables efficient 500 kHz switching in synchronous buck stages
E_AS	115 mJ - withstands repetitive inductive turn-off stress in motor drives
V_GS(th)	2.0–4.0 V - ensures reliable turn-on with 3.3 V or 5 V logic drivers

Pinout & Package

IRFR120NCPBF is housed in a TO-252AA (DPAK) thermally enhanced surface-mount package with exposed drain pad for PCB heat sinking.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control input	Receives PWM signal; requires <18 nC charge for full enhancement
2 (Drain)	High-side switch node	Connected to load/bus; electrically tied to exposed metal pad
3 (Source)	Reference return	Provides common return path for gate drive and load current

Key Features

Feature	Design Value
Lead-free and RoHS compliant	Meets JEDEC J-STD-020 reflow profile; no Pb in die attach or terminations
Fast switching with low Q_g	Reduces total switching losses by >30% vs. legacy 100 V MOSFETs at 250 kHz
175 °C max T_J	Enables operation in sealed enclosures without forced air cooling
100 % UIS tested	Each unit validated for unclamped inductive switching reliability

Applications

DC-DC Buck Converter

Brushed DC Motor Driver

Use Scenario: 48 V input to 12 V/5 A output in telecom power shelf.

IC Role / Device Role / Timing Role: Synchronous high-side switch in fixed-frequency 300 kHz buck regulator.

Use Value: 0.27 Ω R_DS(on) limits conduction loss to <1.2 W at full load, improving efficiency to 94.3 %.

Use Scenario: H-bridge driver for 24 V, 3 A robotic actuator.

IC Role / Device Role / Timing Role: Low-side switching element with PWM-controlled direction and speed.

Use Value: 115 mJ E_AS prevents failure during rapid brake-induced inductive kickback.

LED Constant-Current Driver

Industrial PLC Output Stage

Use Scenario: Dimmable 36 V, 1.2 A LED string in outdoor signage.

IC Role / Device Role / Timing Role: PWM-controlled current sink in constant-current topology.

Use Value: Logic-level V_GS(th) allows direct drive from 3.3 V MCU PWM, eliminating gate driver IC.

Use Scenario: 24 V DC solid-state relay replacement in DIN-rail I/O module.

IC Role / Device Role / Timing Role: Load-switching transistor controlled by isolated digital output.

Use Value: 175 °C T_J(max) sustains operation in 70 °C ambient cabinet environments without derating.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
STP12NK100Z	Higher R_DS(on) (0.45 Ω), higher Q_g (32 nC), TO-220 package	Requires heatsink; unsuitable for space-constrained SMT designs	Prefer when through-hole mounting and higher avalanche margin (E_AS = 250 mJ) are prioritized
IXTP10N100D2	Same V_DS, lower I_D (5.5 A), higher R_DS(on) (0.55 Ω), D2PAK package	Limited continuous current handling; larger footprint	Select only if ultra-low gate charge (Q_g = 12 nC) is critical and thermal design accommodates higher R_DS(on)

Compared with STP12NK100Z and IXTP10N100D2, IRFR120NCPBF delivers superior power density and thermal performance in SMT layouts, balancing conduction loss, switching speed, and package thermal resistance (R_θJA = 60 °C/W).

Availability

IRFR120NCPBF is available at Aetrix Electronics and suitable for DC-DC converters, motor control circuits, and industrial PLC output stages requiring stable component supply and long-term manufacturability.

Supply support for IRFR120NCPBF 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 specializing in power management, automotive, and industrial control solutions, with core expertise in silicon-based power devices.

The StrongIRFET™ product line, which includes IRFR120NCPBF, is engineered for high-reliability industrial switching applications demanding ruggedness, low R_DS(on), and extended temperature operation.

FAQ

What is the maximum junction temperature for IRFR120NCPBF?

The absolute maximum junction temperature is +175 °C, verified per JEDEC JESD22-A108 qualification testing. Operation up to this limit is permitted under specified thermal conditions, including proper PCB copper area and airflow. Derating curves in the official datasheet define safe operating area boundaries at elevated temperatures.

Is IRFR120NCPBF pin-compatible with IRFR120?

Yes - IRFR120NCPBF is a direct lead-free replacement for the legacy IRFR120, sharing identical TO-252AA pinout, electrical specifications, and thermal characteristics. The "P" suffix denotes RoHS compliance; no layout or schematic changes are required for migration.

Does IRFR120NCPBF require a gate resistor for stability?

A gate resistor (typically 10–47 Ω) is recommended to dampen ringing and control dV/dt during switching. This mitigates electromagnetic interference and prevents false triggering in high-noise industrial environments. Values are selected based on drive strength and layout parasitics-not inherent instability of the MOSFET itself.

Can IRFR120NCPBF be used in linear mode (as a pass transistor)?

No - IRFR120NCPBF is not characterized or guaranteed for linear (ohmic) operation. Its Safe Operating Area (SOA) curve restricts linear use to short-duration pulses only. Continuous linear operation risks thermal runaway due to positive temperature coefficient of R_DS(on) and insufficient SOA margin at high V_DS/I_D combinations.

IRFR120NCPBF 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:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 100 V

Current - Continuous Drain (Id) @ 25°C:: 9.4A (Ta)

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

Rds On (Max) @ Id, Vgs:: 210mOhm @ 5.6A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 25 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 330 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 48W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

IRFR120NCPBF FAQ

1.How can I place an order for IRFR120NCPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFR120NCPBF 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 IRFR120NCPBF reliable?

The price and inventory of IRFR120NCPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR120NCPBF is usually 5 days.

3.What payment methods are accepted for IRFR120NCPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR120NCPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFR120NCPBF?

IRFR120NCPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFR120NCPBF 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 IRFR120NCPBF?

For technical support, including IRFR120NCPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR120NCPBF requirements.

6.How does Aetrix verify that IRFR120NCPBF is sourced from the original manufacturer or authorized distributors?

All IRFR120NCPBF 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 IRFR120NCPBF meets industry standards.

7.What is the process for return or replacement of IRFR120NCPBF?

All IRFR120NCPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFR120NCPBF, 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 IRFR120NCPBF part is unused and in its original packaging.

Return procedure for IRFR120NCPBF:

1.Submit a request within 90 days.

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

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