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 IRLR2703PBF

Name: IRLR2703PBF
Brand: Infineon Technologies
SKU: IRLR2703PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: IRLR2703PBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

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

Datasheet:: IRLR2703PBF.pdf

Description:: MOSFET N-CH 30V 23A DPAK

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:9,702

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

Product details

Overview

IRLR2703PBF from Infineon Technologies (formerly International Rectifier) is a 30V N-channel logic-level Power MOSFET in D-Pak (TO-252AA) package, rated for 23A continuous drain current at 25°C, 0.045Ω R_DS(on) at V_GS = 10V, and fully avalanche-rated for robust switching in DC-DC converters, motor drives, and load switches.

For engineers reviewing the IRLR2703PBF datasheet, IRLR2703PBF pinout, IRLR2703PBF application, or IRLR2703PBF equivalent, key selection criteria include logic-level gate drive compatibility (V_GS(th) = 1.0–2.5V), low thermal resistance (R_θJC = 3.3°C/W), fast switching (t_r = 140ns, t_f = 20ns), and body diode recovery performance (t_rr = 65–97ns).

Technical Context

This fifth-generation HEXFET device uses advanced planar processing to achieve ultra-low on-resistance per die area while maintaining rugged avalanche capability (E_AS = 77mJ). Its gate threshold voltage range (1.0–2.5V) ensures reliable turn-on with 3.3V or 5V logic controllers without external level-shifting.

The integrated body diode supports synchronous rectification and freewheeling in buck converters and H-bridge motor drivers. Thermal design is enabled by validated junction-to-case resistance (3.3°C/W) and linear derating (0.30W/°C), supporting up to 45W power dissipation at T_C = 25°C.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DSS	30V - Maximum blocking voltage before avalanche; suitable for 24V rail systems with margin.
R_DS(on) @ V_GS = 10V	0.045Ω - Enables ≤15W conduction loss at 18A, critical for high-efficiency 12–24V power stages.
I_D @ T_C = 25°C	23A - Continuous current rating under ideal heatsinking; limited to 20A by package thermal constraint.
Q_g	15nC - Total gate charge determines driver strength requirement; compatible with standard logic-level gate drivers.
t_r/t_f	140ns/20ns - Fast edge rates reduce switching losses in PWM frequencies up to 500kHz.
E_AS	77mJ - Single-pulse avalanche energy rating validates robustness against inductive switching transients.
R_θJC	3.3°C/W - Confirmed junction-to-case thermal resistance enables accurate thermal modeling for PCB copper pour design.

Pinout & Package

D-Pak (TO-252AA) surface-mount package with exposed drain pad for thermal and electrical connection. Standard three-terminal configuration optimized for high-current PCB layout and vapor-phase reflow.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Source)	Power return path for channel current	Connected to ground or low-side reference; carries full load current and must be routed with low-inductance copper.
Pin 2 (Gate)	Control terminal for channel conduction	High-impedance input requiring <100nA leakage control; sensitive to ESD and requires RC snubbing in noisy environments.
Pin 3 (Drain)	Main power output terminal	Internally connected to exposed metal tab; serves as primary heat sink interface and high-side switching node.

Key Features

Feature	Design Value
Logic-level gate drive	V_GS(th) = 1.0–2.5V enables direct interfacing with 3.3V/5V microcontrollers and gate drivers without level shifters.
Ultra-low R_DS(on)	0.045Ω at 10V reduces conduction losses by >40% vs. legacy 30V MOSFETs in 12V battery-powered applications.
Fully avalanche-rated	77mJ single-pulse energy rating eliminates need for external clamping in unclamped inductive switching circuits.
Fast body diode recovery	t_rr = 65–97ns and Q_rr = 140–210nC minimize shoot-through risk and reverse recovery losses in synchronous rectifiers.
Lead-free and RoHS-compliant	"PBF" suffix confirms Pb-free termination and compliance with EU RoHS Directive 2011/65/EU and JEDEC J-STD-020.

Applications

DC-DC Buck Converter

Brushed DC Motor Driver

Use Scenario: High-efficiency 12V-to-5V/3.3V point-of-load conversion in industrial PLCs and embedded controllers.

IC Role / Device Role: Low-side synchronous rectifier switch replacing Schottky diodes to reduce conduction loss and improve thermal performance.

Use Value: Achieves >94% efficiency at 15A output due to 0.045Ω R_DS(on) and fast switching (t_f = 20ns), lowering system temperature rise by 12°C vs. diode-based designs.

Use Scenario: Bidirectional 24V brushed motor control in automated gate actuators and HVAC dampers.

IC Role / Device Role: Half-bridge low-side switch enabling PWM speed control and regenerative braking via body diode conduction.

Use Value: Withstands 14A avalanche current (I_AR) during motor flyback, eliminating need for external TVS and reducing BOM count by one component.

Hot-Swap Load Switch

LED Constant-Current Driver

Use Scenario: Inrush-limited 24V power distribution to field-replaceable modules in telecom shelf systems.

IC Role / Device Role: Main pass transistor controlled by dedicated hot-swap controller to limit dV/dt and peak current during insertion.

Use Value: Low 1.0V gate threshold ensures reliable turn-on with controller's 2.8V gate drive, while 0.045Ω R_DS(on) limits steady-state drop to <1.1V at 20A.

Use Scenario: Dimmable 24V LED string driver in architectural lighting with analog/PWM dimming.

IC Role / Device Role: High-side current sink switch modulating LED current through sense resistor feedback loop.

Use Value: 23A continuous rating supports parallel LED strings up to 18A, and 175°C max junction temperature allows operation in enclosed luminaires without forced air cooling.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
IRLR3705ZPBF	R_DS(on) = 0.018Ω @ 10V (lower), but higher Q_g = 32nC and larger D-Pak variant (TO-252-3L).	Better for high-current, low-loss applications where gate drive strength permits higher charge handling.	Select when conduction loss dominates and gate driver can supply ≥2A peak current.
DMN3025LFG-7	R_DS(on) = 0.025Ω @ 4.5V, smaller SOT-23-3 package, lower I_D = 4.5A continuous.	Suitable for space-constrained, lower-power (<10W) loads like sensor biasing or small solenoid control.	Choose for compact PCB footprints where current demand is ≤5A and thermal mass is limited.

Compared with IRLR2703PBF, IRLR3705ZPBF offers significantly lower conduction loss but demands stronger gate drive, while DMN3025LFG-7 trades current capacity and thermal robustness for miniaturization-making IRLR2703PBF the balanced choice for 10–20A industrial switching with logic-level compatibility and proven avalanche ruggedness.

Availability

IRLR2703PBF is available at Aetrix Electronics and suitable for DC-DC converters, motor drivers, hot-swap load switches, and LED constant-current drivers requiring stable component supply across industrial, automation, and embedded power applications.

Supply support for IRLR2703PBF 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 its legacy of high-performance power semiconductors with rigorous qualification and automotive-grade reliability testing.

The IRLR2703PBF belongs to the HEXFET® logic-level MOSFET product line, engineered for efficient, robust switching in 12–24V industrial and consumer power systems where gate drive simplicity and thermal resilience are critical.

FAQ

Is IRLR2703PBF suitable for 3.3V microcontroller gate drive?

Yes. With a gate threshold voltage range of 1.0–2.5V and guaranteed turn-on at V_GS = 4.5V (R_DS(on) = 0.065Ω), the IRLR2703PBF reliably switches at 3.3V logic levels. Its low gate charge (15nC) also minimizes driver loading, making it compatible with most GPIO pins and dedicated low-voltage gate drivers without external level shifting.

What is the maximum safe operating temperature for continuous use?

The IRLR2703PBF has a maximum junction temperature of +175°C and a storage temperature range of −55°C to +175°C. For continuous operation, thermal design must ensure T_J remains below this limit-achievable with proper PCB copper area, airflow, or heatsinking given its R_θJC = 3.3°C/W and R_θJA = 50°C/W (PCB mount).

Does the body diode support synchronous rectification?

Yes. The integrated body diode has characterized reverse recovery time (t_rr = 65–97ns) and charge (Q_rr = 140–210nC), enabling use in synchronous buck topologies. However, for optimal efficiency, external Schottky or GaN FETs may outperform it at very high frequencies (>1MHz) due to lower Q_rr.

How does the "PBF" suffix affect soldering and compliance?

The "PBF" suffix indicates lead-free (Pb-free) terminations compliant with RoHS Directive 2011/65/EU. It requires peak reflow temperatures up to 260°C (per JEDEC J-STD-020), and the device is qualified for standard vapor-phase, infrared, and wave soldering processes used for D-Pak packages-no special process adjustments are needed beyond standard Pb-free profiles.

IRLR2703PBF 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:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

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

Drive Voltage (Max Rds On, Min Rds On):: 4V, 10V

Rds On (Max) @ Id, Vgs:: 45mOhm @ 14A, 10V

Vgs(th) (Max) @ Id:: 1V @ 250µA

Gate Charge (Qg) (Max) @ Vgs:: 15 nC @ 4.5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 450 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 45W (Tc)

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

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

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

IRLR2703PBF FAQ

1.How can I place an order for IRLR2703PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRLR2703PBF 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 IRLR2703PBF reliable?

The price and inventory of IRLR2703PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLR2703PBF is usually 5 days.

3.What payment methods are accepted for IRLR2703PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLR2703PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRLR2703PBF?

IRLR2703PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRLR2703PBF 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 IRLR2703PBF?

For technical support, including IRLR2703PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLR2703PBF requirements.

6.How does Aetrix verify that IRLR2703PBF is sourced from the original manufacturer or authorized distributors?

All IRLR2703PBF 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 IRLR2703PBF meets industry standards.

7.What is the process for return or replacement of IRLR2703PBF?

All IRLR2703PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLR2703PBF, 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 IRLR2703PBF part is unused and in its original packaging.

Return procedure for IRLR2703PBF:

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…