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

Infineon Technologies IRL3103D2S

Name: IRL3103D2S
Brand: Infineon Technologies
SKU: IRL3103D2S
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: IRL3103D2S

Manufacturer:: Infineon Technologies

Category:: FETs, MOSFETs

Package:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

Datasheet:: IRL3103D2S.pdf

Description:: MOSFET N-CH 30V 54A D2PAK

Quantity:: RFQ Add To RFQ list

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Inventory:9,888

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Product details

Overview

IRL3103D2S from Infineon Technologies is a logic-level N-channel MOSFET rated for 30 V V_DS, 54 A continuous drain current at T_C = 25 °C, and 3.3 mΩ typical R_DS(on) at V_GS = 10 V. It operates in high-efficiency DC-DC converters and motor drive half-bridges where low conduction loss and fast switching are required.

For engineers reviewing the IRL3103D2S datasheet, IRL3103D2S pinout, IRL3103D2S application, or IRL3103D2S equivalent, key selection criteria include gate threshold voltage (V_GS(th) = 1.0–2.0 V), SOA robustness under repetitive avalanche, and D2PAK thermal performance in surface-mount power stages.

Technical Context

This MOSFET uses Infineon's HEXFET® process with optimized cell layout for reduced gate charge (Q_g = 71 nC typ.) and low output capacitance (C_oss = 2980 pF at V_DS = 15 V). Its logic-level gate enables direct drive from 3.3 V or 5 V microcontrollers without level-shifting.

The device supports unclamped inductive switching (UIS) with E_AS = 250 mJ at T_J = 25 °C and features 100 % UIS-tested production screening. Thermal resistance R_θJC = 0.95 °C/W ensures effective heat transfer to the PCB copper pour in D2PAK mounting.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	30 V - Maximum blocking voltage in high-side switch or synchronous rectifier configurations
I_D (continuous, T_C = 25 °C)	54 A - Sustained current capability with adequate heatsinking on 2 oz copper
R_DS(on) (typ., V_GS = 10 V)	3.3 mΩ - Enables <1 W conduction loss at 15 A, critical for 12 V input buck converters
V_GS(th)	1.0–2.0 V - Ensures full enhancement with 3.3 V GPIO, eliminating external gate driver need
Q_g (typ.)	71 nC - Determines gate drive power and switching transition time in PWM applications
E_AS	250 mJ - Supports reliable operation during inductive load turn-off without snubber circuits

Pinout & Package

IRL3103D2S is housed in a surface-mount D2PAK (TO-263) package with exposed drain pad for thermal and electrical connection to PCB ground plane.

Pin/Terminal	Circuit Role	Design Meaning
Drain (Tab)	Main current path output terminal	Electrically and thermally connected to PCB copper pour; must be soldered to ≥100 mm² 2 oz Cu area
Source	Reference node for gate control and current return	Provides low-inductance return path; ties to power ground near gate driver IC
Gate	Control electrode for channel conduction	Requires <10 Ω series resistor to suppress ringing; sensitive to ESD (HBM 2 kV)

Key Features

Feature	Design Value
Logic-level gate drive	Operates fully enhanced at 3.3 V, enabling direct MCU interface without level shifters
Low R_DS(on) × Q_g figure of merit	234 mΩ·nC - Balances conduction and switching losses in 200–500 kHz SMPS designs
100 % UIS tested	Guarantees avalanche energy handling per JEDEC JESD22-A116, reducing design margin risk
Enhanced dV/dt immunity	Rated for 50 V/ns - Suppresses false turn-on in high-speed half-bridge layouts

Applications

Brushless DC Motor Driver

12 V Automotive Power Distribution

Use Scenario: Three-phase inverter stage in 24 V BLDC fans or pumps.

IC Role / Device Role / Timing Role: Low-side switching element in each phase leg, synchronized to PWM signals from motor controller.

Use Value: 3.3 mΩ R_DS(on) minimizes I²R heating at 30 A peak, extending motor driver board lifetime in sealed enclosures.

Use Scenario: Solid-state replacement for mechanical relays in vehicle body control modules.

IC Role / Device Role / Timing Role: High-current load switch controlling headlights, HVAC blower, or seat heaters.

Use Value: Logic-level gate allows direct drive from automotive microcontroller GPIO, reducing BOM count and PCB space.

DC-DC Synchronous Rectifier

Industrial PLC Output Module

Use Scenario: Secondary-side switch in isolated 12 V/50 A telecom power supply.

IC Role / Device Role / Timing Role: Synchronous rectifier replacing Schottky diode to improve efficiency above 85 % at full load.

Use Value: Low Q_g and fast t_f (35 ns) enable precise gate timing alignment with primary-side controller, minimizing shoot-through risk.

Use Scenario: 24 V DC digital output stage driving solenoids or indicator lamps in factory automation systems.

IC Role / Device Role / Timing Role: Protected high-side or low-side switch with integrated overcurrent detection interface.

Use Value: Repetitive avalanche rating supports inductive kickback from 2 A solenoid coils without external clamping diodes.

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
STP55NF06L	R_DS(on) = 12 mΩ @ 10 V; higher threshold (1.5–2.5 V); TO-220 package	Larger footprint and higher thermal resistance limit current density in compact layouts	Prefer when cost sensitivity outweighs thermal performance and board space constraints
IRF3205PBF	R_DS(on) = 8 mΩ @ 10 V; V_GS(th) = 2.0–4.0 V; requires 5 V gate drive	Not logic-level compatible - mandates gate driver IC for 3.3 V controllers	Select only if existing 5 V gate drive infrastructure exists and lower R_DS(on) justifies added complexity

Compared with STP55NF06L and IRF3205PBF, the IRL3103D2S delivers superior thermal performance in D2PAK, guaranteed logic-level operation, and lower total gate charge - making it optimal for space-constrained, 3.3 V-controlled power stages requiring high reliability.

Availability

IRL3103D2S is available at Aetrix Electronics and suitable for brushless DC motor drives, automotive power distribution modules, and industrial PLC output stages requiring stable component supply and long-term manufacturability.

Supply support for IRL3103D2S 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 security solutions, with global manufacturing and R&D centers.

The IRL3103D2S belongs to Infineon's logic-level HEXFET® MOSFET product line, engineered for high-efficiency, low-voltage switching in battery-powered and automotive systems where gate drive simplicity and thermal robustness are critical.

FAQ

What is the maximum junction temperature for continuous operation?

The IRL3103D2S has a maximum rated junction temperature of 175 °C. Derating is required above T_C = 25 °C per the datasheet's thermal resistance curve (R_θJC = 0.95 °C/W). At T_C = 100 °C, the absolute maximum continuous I_D drops to approximately 32 A to maintain T_J ≤ 175 °C.

Does this MOSFET require a gate resistor, and what value is recommended?

Yes - a gate resistor is required to dampen ringing and control dI/dt. For typical 3.3 V MCU drive, a 10 Ω series resistor is recommended. Values between 5 Ω and 22 Ω balance switching speed and EMI; values below 5 Ω increase risk of gate oscillation in high-di/dt layouts.

Can IRL3103D2S be used in parallel configurations?

Yes, but only with careful layout: matched gate drive paths, symmetrical source inductance, and thermal coupling via shared copper pour. The positive temperature coefficient of R_DS(on) supports current sharing, but gate threshold variation (±0.5 V) requires individual gate resistors to prevent imbalance at light loads.

Is the D2PAK package lead-free and RoHS compliant?

Yes - the IRL3103D2S is manufactured in a lead-free, RoHS-compliant D2PAK package per Infineon's standard qualification. It meets JEDEC J-STD-020 moisture sensitivity level MSL-3 and supports reflow profiles up to 260 °C peak temperature.

IRL3103D2S Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: FETKY™

Package/Case:: TO-263-3, D2PAK (2 Leads + Tab), TO-263AB

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:: 54A (Tc)

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

Rds On (Max) @ Id, Vgs:: 14mOhm @ 32A, 10V

Vgs(th) (Max) @ Id:: -

Gate Charge (Qg) (Max) @ Vgs:: 44 nC @ 4.5 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 2300 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: -

Operating Temperature:: -

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: D2PAK

IRL3103D2S FAQ

1.How can I place an order for IRL3103D2S through Aetrix?

Please submit a Request for Quotation (RFQ) for IRL3103D2S 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 IRL3103D2S reliable?

The price and inventory of IRL3103D2S are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRL3103D2S is usually 5 days.

3.What payment methods are accepted for IRL3103D2S?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRL3103D2S transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for IRL3103D2S?

IRL3103D2S orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your IRL3103D2S 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 IRL3103D2S?

For technical support, including IRL3103D2S datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRL3103D2S requirements.

6.How does Aetrix verify that IRL3103D2S is sourced from the original manufacturer or authorized distributors?

All IRL3103D2S 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 IRL3103D2S meets industry standards.

7.What is the process for return or replacement of IRL3103D2S?

All IRL3103D2S units undergo pre-shipment inspection (PSI). If there is an issue with IRL3103D2S, 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 IRL3103D2S part is unused and in its original packaging.

Return procedure for IRL3103D2S:

1.Submit a request within 90 days.

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

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