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

Infineon Technologies IRL2703PBF

Name: IRL2703PBF
Brand: Infineon Technologies
SKU: IRL2703PBF
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL2703PBF

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-220-3

Datasheet:: IRL2703PBF.pdf

Description:: MOSFET N-CH 30V 24A TO220AB

Quantity:: RFQ Add To RFQ list

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Inventory:8,875

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Product details

Overview

IRL2703PBF from Infineon Technologies is a 30 V, 110 A, N-channel logic-level HEXFET power MOSFET in TO-220AB package with R_DS(on) = 4.5 mΩ at V_GS = 10 V and 6.0 mΩ at V_GS = 5 V, optimized for high-current DC-DC converter primary-side switching and motor drive half-bridge legs.

For engineers reviewing the IRL2703PBF datasheet, IRL2703PBF pinout, IRL2703PBF application, or IRL2703PBF equivalent, key selection criteria include low gate threshold (V_GS(th) = 1.0–2.0 V), fast turn-on/off times (t_on = 35 ns, t_off = 85 ns), and avalanche-rated ruggedness (E_AS = 190 mJ) for reliable operation in inductive load switching.

Technical Context

This MOSFET uses planar stripe silicon process with integrated Schottky body diode and optimized gate oxide for enhanced dV/dt immunity. Its logic-level gate enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting circuitry.

The device features a Kelvin-source configuration in its internal layout to minimize source inductance, supporting stable high-frequency PWM operation up to 500 kHz in synchronous buck converters and BLDC motor gate drivers.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum drain-source blocking voltage for 12 V/24 V automotive and industrial bus applications.
I_D (continuous)	110 A @ T_C = 25°C - Sustains high pulsed current in motor phase legs without derating at heatsink temperatures ≤60°C.
R_DS(on) @ V_GS = 5 V	6.0 mΩ - Enables <1 W conduction loss at 40 A, critical for thermally constrained 5 V logic-driven systems.
Q_g	71 nC - Low total gate charge reduces driver power demand and improves efficiency in high-frequency switching.
E_AS	190 mJ - Rated single-pulse avalanche energy supports robust operation during inductive flyback transients.
t_rr	55 ns - Fast body diode reverse recovery minimizes shoot-through risk in synchronous rectification.

Pinout & Package

IRL2703PBF is housed in a through-hole TO-220AB package with isolated tab (drain-connected), standard heat-sink mounting interface, and lead-free finish per JEDEC J-STD-020.

Pin/Terminal	Circuit Role	Design Meaning
1 (Gate)	Control electrode	Accepts logic-level input (1–5 V); low C_iss = 2200 pF enables fast edge rates with minimal driver strength.
2 (Drain)	High-side current path	Internally connected to metal tab; requires electrical isolation when mounted to heatsink.
3 (Source)	Reference node / return path	Common connection point for gate driver ground and load return; low-inductance layout essential.
4 (Drain)	Secondary drain terminal	Parallel drain connection to reduce package inductance and improve current sharing in high-di/dt switching.

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at V_GS = 4.5 V, eliminating need for gate driver ICs in 5 V MCU-based motor controllers.
Ultra-low R_DS(on)	6.0 mΩ @ 5 V ensures <1.0 W conduction loss at 40 A, reducing thermal design burden in compact enclosures.
Avalanche-rated	190 mJ E_AS rating allows safe operation under unclamped inductive switching without external snubbers.
TO-220AB package	Standard footprint with dual drain leads supports >100 A peak current handling and mechanical stability on PCBs.

Applications

DC-DC Converter Primary Switch

Brushless DC Motor Half-Bridge

Use Scenario: High-efficiency 12 V input → 5 V/3.3 V synchronous buck converter in telecom power modules.

IC Role / Device Role / Timing Role: High-side main switch operating at 300 kHz PWM with 5 V gate drive from controller IC.

Use Value: 6.0 mΩ R_DS(on) at 5 V reduces conduction loss by 35% vs. standard 10 V gate MOSFETs, improving full-load efficiency to >94%.

Use Scenario: Upper-leg switch in 24 V BLDC motor inverter driving HVAC blowers or power tools.

IC Role / Device Role / Timing Role: High-current, high-dV/dt switching element with fast t_off = 85 ns enabling precise commutation timing.

Use Value: Dual drain leads and low Q_g = 71 nC minimize switching losses and gate drive power, extending battery runtime by 8–12%.

Automotive Body Control Module

Industrial Solenoid Driver

Use Scenario: Load switch for headlight LED arrays or window lift motors in 12 V vehicle electrical architecture.

IC Role / Device Role / Timing Role: Logic-level controlled power switch interfacing directly with 3.3 V CAN microcontroller GPIO pins.

Use Value: V_GS(th) = 1.0–2.0 V ensures guaranteed turn-on even with supply droop to 3.0 V, preventing unintended load dropout.

Use Scenario: High-reliability solenoid actuator driver in factory automation PLC output modules.

IC Role / Device Role / Timing Role: Inductive load switch subjected to repetitive 100 V flyback spikes during de-energization.

Use Value: 190 mJ E_AS rating eliminates need for external TVS clamps, reducing BOM count and board area by 25%.

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
STP110N3LLH6	R_DS(on) = 5.2 mΩ @ 4.5 V; higher Q_g = 95 nC; TO-220FP package (no isolated tab)	Lacks drain-isolated tab; requires insulating washer for heatsink mounting.	Preferred where lower R_DS(on) outweighs thermal isolation needs and space permits larger footprint.
IRF3710PBF	V_DS = 100 V; R_DS(on) = 23 mΩ @ 10 V; not logic-level (V_GS(th) = 2–4 V); higher gate charge	Requires 10 V gate drive; unsuitable for direct 3.3 V MCU interface.	Only suitable if system uses dedicated 10 V gate driver and higher voltage blocking is mandatory.

Compared with STP110N3LLH6 and IRF3710PBF, IRL2703PBF uniquely balances logic-level compatibility, ultra-low 5 V R_DS(on), drain-isolated TO-220AB packaging, and proven avalanche ruggedness-making it optimal for cost-sensitive, space-constrained 12–24 V industrial and automotive switches.

Availability

IRL2703PBF is available at Aetrix Electronics and suitable for DC-DC converters, BLDC motor drives, and automotive body control modules requiring stable component supply and long-term manufacturing continuity.

Supply support for IRL2703PBF 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 electronics, and industrial control ICs and discrete devices.

IRL2703PBF belongs to the HEXFET® logic-level MOSFET product line, engineered specifically for high-current, low-voltage switching applications where direct microcontroller drive and thermal efficiency are critical.

FAQ

Is IRL2703PBF compatible with 3.3 V microcontroller GPIO outputs?

Yes. With V_GS(th) ranging from 1.0 V to 2.0 V and full enhancement at V_GS = 4.5 V, IRL2703PBF delivers R_DS(on) ≤ 8.5 mΩ when driven from a 3.3 V rail with sufficient current capability (≥10 mA sink/source). Layout must minimize gate loop inductance to ensure clean switching.

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

At T_C = 100°C, the maximum continuous drain current is derated to 62 A per the Safe Operating Area (SOA) curve in the official Infineon datasheet. This limit accounts for thermal resistance (R_θJC = 1.0°C/W) and ensures junction temperature remains below 175°C under steady-state conduction.

Does IRL2703PBF have an integrated body diode, and what is its reverse recovery performance?

Yes, it features a monolithic intrinsic body diode with t_rr = 55 ns and Q_rr = 52 nC at I_F = 50 A. This fast recovery characteristic supports synchronous rectification and reduces cross-conduction risk in half-bridge configurations operating above 100 kHz.

Can IRL2703PBF be used in parallel configurations for higher current handling?

Yes-its positive temperature coefficient of R_DS(on) enables stable current sharing. Parallel operation requires matched gate drive impedance, symmetrical PCB layout, and individual gate resistors (≥10 Ω) to damp oscillations. Derate total current by 15% to account for thermal coupling between devices.

IRL2703PBF Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: HEXFET®

Package/Case:: TO-220-3

Packaging:: Tube

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 30 V

Current - Continuous Drain (Id) @ 25°C:: 24A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 4.5V, 10V

Rds On (Max) @ Id, Vgs:: 40mOhm @ 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:: Through Hole

Supplier Device Package:: TO-220AB

IRL2703PBF FAQ

1.How can I place an order for IRL2703PBF through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL2703PBF 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 IRL2703PBF reliable?

The price and inventory of IRL2703PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL2703PBF is usually 5 days.

3.What payment methods are accepted for IRL2703PBF?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL2703PBF transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL2703PBF?

IRL2703PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL2703PBF 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 IRL2703PBF?

For technical support, including IRL2703PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL2703PBF requirements.

6.How does Aetrix verify that IRL2703PBF is sourced from the original manufacturer or authorized distributors?

All IRL2703PBF 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 IRL2703PBF meets industry standards.

7.What is the process for return or replacement of IRL2703PBF?

All IRL2703PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRL2703PBF, 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 IRL2703PBF part is unused and in its original packaging.

Return procedure for IRL2703PBF:

1.Submit a request within 90 days.

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

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