Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

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

Infineon Technologies IRFL024NPBF

Name: IRFL024NPBF
Brand: Infineon Technologies
SKU: IRFL024NPBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: IRFL024NPBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-261-4, TO-261AA

Datasheet:: IRFL024NPBF.pdf

Description:: MOSFET N-CH 55V 2.8A SOT223

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,762

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

IRFL024NPBF from Infineon (formerly International Rectifier) is a 55V, 2.8A N-channel enhancement-mode power MOSFET in SOT-223 package, featuring 0.075Ω R_DS(on) at V_GS = 10V, 100% avalanche-rated operation, and fast 13.4ns rise time. It serves as a low-side switching element in DC-DC converters, LED drivers, and load-switching circuits where thermal efficiency and ruggedness are critical.

For engineers reviewing the IRFL024NPBF datasheet, IRFL024NPBF pinout, IRFL024NPBF application, or IRFL024NPBF equivalent, key selection criteria include its 55V V_DSS, 0.075Ω on-resistance, SOT-223 thermal performance (R_θJA = 90°C/W on FR-4), 214mJ single-pulse avalanche energy, and gate charge profile (Q_g = 18.3nC).

Technical Context

This HEXFET® fifth-generation device uses advanced silicon processing to minimize conduction loss per unit area while maintaining robust dv/dt immunity (5.0V/ns) and full unclamped inductive switching capability. Its body diode exhibits 35–53ns reverse recovery time and 50–75nC Q_rr, enabling efficient synchronous rectification in medium-frequency SMPS topologies.

The MOSFET operates across –55°C to +150°C junction temperature range with ±20V gate voltage tolerance and 0.056V/°C breakdown voltage temperature coefficient. Its SOA is defined by R_DS(on) limitation at low V_DS and thermal constraints at high pulse widths, validated up to 10ms pulses at 150°C case temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	55V - Maximum drain-source blocking voltage before avalanche onset; sets upper limit for input voltage in buck converters or motor drive half-bridges.
R_DS(on)	0.075Ω @ V_GS = 10V, I_D = 2.8A - Enables ≤210mW conduction loss at rated current, reducing heatsink requirements in space-constrained SMT designs.
I_D (continuous)	2.8A @ T_A = 25°C - Sustained current capability on standard FR-4 PCB with minimum footprint; derates to 2.3A at 70°C ambient.
E_AS	214mJ - Single-pulse avalanche energy rating confirms reliability under inductive turn-off stress without external snubbers.
Q_g	18.3nC - Total gate charge determines driver strength requirement; enables <25ns switching transitions with 24Ω gate resistor.
R_θJA	90°C/W (FR-4) - Thermal resistance defines maximum power dissipation (1.0W) before exceeding 150°C junction temperature.
t_r/t_f	13.4ns / 17.7ns - Fast edge rates support >500kHz switching frequencies while minimizing overlap loss in hard-switched topologies.

Pinout & Package

SOT-223 package features three leads plus an exposed thermal tab (Drain-connected) for enhanced PCB heat spreading. The molded plastic body measures 7.55 × 6.90 × 1.85 mm and supports vapor-phase, infrared, and wave soldering.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Source terminal of N-channel MOSFET	Reference node for gate drive; connects to ground or low-side return path; carries full load current.
Pin 2 (Gate)	Control electrode	High-impedance input requiring ≥2.0V threshold; driven by logic-level or dedicated gate driver ICs.
Pin 3 (Drain)	Power output terminal	Connected to load or supply rail; electrically tied to exposed thermal pad for improved thermal conduction.
Tab (Drain)	Thermal and electrical connection	Exposed copper pad soldered to large PCB copper area; provides primary heat path and reduces R_θJA by ~40% vs. standard SOT-23.

Key Features

Feature	Design Value
Ultra-low R_DS(on)	0.075Ω enables <210mW conduction loss at 2.8A, reducing thermal stress in compact power stages.
Fully avalanche-rated	214mJ E_AS ensures reliable operation during inductive switching transients without derating or snubber circuits.
Fast switching	13.4ns rise time and 17.7ns fall time support high-frequency PWM control with minimal switching loss.
Lead-free SOT-223	RoHS-compliant package with enlarged thermal tab improves thermal resistance by 30–40% over standard SOT-23 equivalents.
Dynamic dv/dt immunity	Rated for 5.0V/ns, preventing false turn-on in noisy high-speed switching environments like motor drives.

Applications

DC-DC Buck Converter

LED Constant-Current Driver

Use Scenario: Step-down regulation from 12–48V input to 3.3–24V output in industrial IoT sensors and programmable logic controllers.

IC Role / Device Role / Timing Role: Low-side synchronous rectifier controlled by PWM controller; switches at 200–500kHz with duty cycle modulation.

Use Value: 0.075Ω R_DS(on) minimizes conduction loss in high-duty-cycle operation, improving efficiency by ≥1.2% over 0.1Ω alternatives at 2A load.

Use Scenario: Constant-current dimming of high-brightness white LEDs in architectural lighting and signage systems.

IC Role / Device Role / Timing Role: Current-sense switch in linear or PWM-controlled LED string drivers; handles pulsed currents up to 11.2A peak.

Use Value: 214mJ avalanche rating absorbs inductive kickback from LED inductor during PWM off-time, eliminating need for external flyback diodes.

Load Switch for 24V Systems

Motor Control (Small DC Brushed)

Use Scenario: Hot-swap protection and power sequencing in 24V industrial control modules and fieldbus interface cards.

IC Role / Device Role / Timing Role: High-side or low-side load switch controlled by microcontroller GPIO; activated/deactivated on demand.

Use Value: ±20V gate rating allows direct 3.3V/5V logic drive with series resistor; 2.8A continuous rating supports typical PLC I/O module loads.

Use Scenario: H-bridge half-bridge leg in battery-powered portable tools and small actuators (e.g., valve positioners).

IC Role / Device Role / Timing Role: Low-side switch in dual-MOSFET bridge configuration; commutated at ≤20kHz with dead-time control.

Use Value: 55V V_DSS accommodates 24V nominal bus with 100% margin for back-EMF spikes; 13.4ns t_r enables precise PWM timing resolution.

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
DMN3020LSD-13	R_DS(on) = 0.03Ω @ 4.5V, but V_DSS = 30V; smaller SOT-23 package limits thermal handling.	Better for 3.3V logic-driven 5V–12V systems; unsuitable for 24V+ bus voltages due to lower breakdown rating.	Select when gate drive is limited to 4.5V and V_DS never exceeds 25V; avoid in 24V industrial environments.
IPD220N06N3G	R_DS(on) = 0.0022Ω @ 10V, TO-252 package; higher current (60A) but larger footprint and cost.	Targeted at high-power motor drives; overqualified for sub-3A loads where SOT-223 size and cost matter.	Choose only if >5A continuous current or <2mΩ R_DS(on) is required; otherwise IRFL024NPBF offers optimal size/performance balance.

Compared with DMN3020LSD-13 and IPD220N06N3G, IRFL024NPBF uniquely balances 55V robustness, SOT-223 thermal performance, and 0.075Ω on-resistance in a cost-sensitive, space-limited 2–3A switching application.

Availability

IRFL024NPBF is available at Aetrix Electronics and suitable for DC-DC buck converters, LED constant-current drivers, and 24V load-switching applications requiring stable component supply and long-term industrial availability.

Supply support for IRFL024NPBF 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 acquired International Rectifier in 2015 and continues to develop and manufacture its HEXFET® power MOSFET portfolio with focus on efficiency, ruggedness, and automotive-grade reliability.

The IRFL024NPBF belongs to the fifth-generation HEXFET® family, engineered for high-efficiency, surface-mount power switching in industrial automation, lighting, and embedded power supplies where thermal density and transient robustness are critical.

FAQ

What is the maximum continuous drain current at 70°C ambient temperature?

The IRFL024NPBF delivers 2.3A continuous drain current at T_A = 70°C with V_GS = 10V, based on thermal derating from its 2.8A rating at 25°C ambient. This value assumes use of the minimum recommended FR-4 footprint and accounts for R_θJA = 90°C/W and 150°C maximum junction temperature.

Is the SOT-223 thermal tab electrically isolated?

No, the exposed thermal tab on the IRFL024NPBF is internally connected to the Drain terminal. When soldered to a PCB copper pour, it must be routed to the same net as the Drain pin to avoid short circuits or unintended voltage coupling to other layers.

Can IRFL024NPBF be driven directly from a 3.3V microcontroller GPIO?

Driving the IRFL024NPBF directly from a 3.3V GPIO is not recommended: its V_GS(th) ranges from 2.0–4.0V, and R_DS(on) is specified at 10V. At 3.3V, the device operates in linear region with significantly higher on-resistance (>0.5Ω), causing excessive heating and unreliable switching.

What is the significance of the "PbF" suffix in the part number?

The "PbF" suffix indicates that the IRFL024NPBF is a lead-free, RoHS-compliant product. It confirms compliance with EU Directive 2011/65/EU and uses matte tin plating on terminals, with no lead content in die attach, mold compound, or finish-verified per JEDEC J-STD-020 moisture sensitivity level 1.

IRFL024NPBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-261-4, TO-261AA

Packaging:: Tube

Product Status:: Discontinued at Digi-Key

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 2.8A (Ta)

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

Rds On (Max) @ Id, Vgs:: 75mOhm @ 2.8A, 10V

Vgs(th) (Max) @ Id:: 4V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 18.3 nC @ 10 V

Vgs (Max):: ±20V

Input Capacitance (Ciss) (Max) @ Vds:: 400 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 1W (Ta)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-223

IRFL024NPBF FAQ

1.How can I place an order for IRFL024NPBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRFL024NPBF 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 IRFL024NPBF reliable?

The price and inventory of IRFL024NPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFL024NPBF is usually 5 days.

3.What payment methods are accepted for IRFL024NPBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFL024NPBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRFL024NPBF?

IRFL024NPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRFL024NPBF 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 IRFL024NPBF?

For technical support, including IRFL024NPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFL024NPBF requirements.

6.How does Aetrix verify that IRFL024NPBF is sourced from the original manufacturer or authorized distributors?

All IRFL024NPBF 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 IRFL024NPBF meets industry standards.

7.What is the process for return or replacement of IRFL024NPBF?

All IRFL024NPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFL024NPBF, 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 IRFL024NPBF part is unused and in its original packaging.

Return procedure for IRFL024NPBF:

1.Submit a request within 90 days.

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

Tech Hub

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…

2026-07-17 Raspberry Pi Alternatives: Chip-Level Comparison, Compatibility and Replacement Guide

Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…

2026-07-13 How to Test Dynamic Load Response in Low-Voltage High-Current Buck Converters

Engineering guide to dynamic load response testing for high-current buck converters, covering load step setup, slew rate, Vcore undershoot, overshoot, recovery time, probe location, output capacitors a…

2026-07-08 Output Capacitor Selection for High-Current ASIC Vcore Rails

Engineering guide to output capacitor selection for ASIC Vcore rails, covering bulk capacitors, polymer capacitors, MLCC decoupling, DC bias, ESR, ESL, placement, transient response and substitution ri…

2026-07-07 High-Current ASIC Core Power Supply Design: 12-Phase Buck, PMBus and Dynamic Load Response

Engineering guide to high-current ASIC Vcore rails, covering 12-phase buck architecture, PMBus control, dynamic load testing, output capacitor networks, smart power stage selection, thermal design and …

2026-07-06 Voltage Regulator: Types, Circuits, Testing and Selection Guide

Voltage regulator guide covering linear, LDO, 7805, Zener, adjustable, buck, VRM and alternator regulators, with design checks, testing methods, troubleshooting and datasheet-based selection.

2026-06-30 Amplifiers Explained: Types, Circuits, Gain, Classes and Applications

Amplifier guide covering voltage, current and power amplification, gain, feedback, amplifier classes, audio and RF applications, op-amp circuits, transimpedance amplifiers, datasheet selection and trou…