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Infineon Technologies IRLU2703
- Part No.:
- IRLU2703
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
IRLU2703.pdf
- Description:
- MOSFET N-CH 30V 23A I-PAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,466
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Product details
Overview
IRLU2703 from Infineon Technologies (formerly International Rectifier) is a logic-level N-channel enhancement-mode Power MOSFET in TO-251AA (I-Pak) package, rated for 30 V V(BR)DSS, 0.045 Ω RDS(on) at VGS = 10 V and ID = 14 A, and 23 A continuous drain current at TC = 25°C. It features ultra-low on-resistance, fast switching, and full avalanche rating - used in DC-DC converters, motor control stages, and high-efficiency power switches.
For engineers reviewing the IRLU2703 datasheet, IRLU2703 pinout, IRLU2703 application, or IRLU2703 equivalent, key selection criteria include gate threshold voltage (1.0–2.5 V), RDS(on) at 4.5 V (0.065 Ω), total gate charge (15 nC), thermal resistance RθJA (50 °C/W), and avalanche energy rating (77 mJ).
Technical Context
The IRLU2703 employs fifth-generation HEXFET process technology to achieve low conduction loss and high switching efficiency. Its logic-level gate drive enables direct interfacing with 3.3 V/5 V microcontrollers without level-shifting circuitry.
It integrates a robust body diode with 1.3 V forward voltage at 14 A and 65–97 ns reverse recovery time, supporting synchronous rectification and unclamped inductive switching. The device is fully avalanche-rated for 77 mJ single-pulse energy under defined test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)DSS | 30 V - maximum blocking voltage before avalanche onset; defines safe operating range in 24 V systems. |
| RDS(on) | 0.045 Ω @ VGS = 10 V, ID = 14 A - enables <1 W conduction loss at 15 A, critical for thermally constrained PCBs. |
| VGS(th) | 1.0–2.5 V - ensures reliable turn-on with standard logic outputs, eliminating need for gate drivers in low-power apps. |
| Qg | 15 nC - determines gate drive power and switching speed; compatible with low-current MCU GPIOs when driven via series resistor. |
| EAS | 77 mJ - supports robust operation in inductive load switching (e.g., solenoids, relay coils) without external snubbers. |
| RθJA | 50 °C/W - measured with PCB mount; sets thermal derating slope (0.30 W/°C) for sustained 45 W power dissipation at TC = 25°C. |
Pinout & Package
IRLU2703 uses the TO-251AA (I-Pak) surface-mount-compatible through-hole package with three leads and dual drain connections for enhanced current handling and thermal path. Lead assignment follows JEDEC standard: Pin 1 = Gate, Pin 2 = Drain, Pin 3 = Source, Pin 4 = Drain (common with Pin 2).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (GATE) | Control electrode | Accepts logic-level voltage (≥2.5 V) to fully enhance channel; requires <100 nA leakage current at ±16 V. |
| 2 & 4 (DRAIN) | High-side power terminal | Dual drain pins reduce current density and parasitic inductance (LD = 4.5 nH); connected internally to die drain metallization. |
| 3 (SOURCE) | Reference and return path | Serves as common node for gate drive reference and load return; internal source inductance LS = 7.5 nH affects di/dt capability. |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Turns on fully at VGS = 4.5 V (RDS(on) = 0.065 Ω), enabling direct MCU interface without level shifters. |
| Fully avalanche rated | Withstands 77 mJ single-pulse avalanche energy, allowing reliable operation in inductive switching without clamping circuits. |
| Ultra-low RDS(on) | 0.045 Ω at 10 V gate drive reduces conduction losses by >30% vs. legacy 30 V MOSFETs in same package. |
| Fast switching | 140 ns rise time and 20 ns fall time (RG = 12 Ω) support >500 kHz PWM in SMPS designs. |
Applications
| Brushless DC Motor Control | Automotive Body Control Module |
|---|---|
Use Scenario: Driving half-bridge leg in 12 V BLDC fan or pump controller with PWM up to 20 kHz. IC Role / Device Role / Timing Role: Low-side switch in 3-phase inverter; handles 15 A peak phase current with minimal heating. Use Value: Logic-level gate enables direct STM32 GPIO drive; 0.045 Ω RDS(on) limits junction temperature rise to <45°C at 15 A continuous. | Use Scenario: Load switching for interior lighting, window lift, or mirror adjustment in 12 V automotive systems. IC Role / Device Role / Timing Role: High-reliability power switch replacing electromechanical relays; controlled by CAN-linked microcontroller. Use Value: Avalanche rating absorbs inductive kickback from motor windings; -55°C to +175°C TJ range meets AEC-Q101 ambient requirements. |
| Industrial DC-DC Converter | Smart Home Power Outlet |
Use Scenario: Synchronous rectifier in 24 V input, 5 V/10 A isolated flyback converter. IC Role / Device Role / Timing Role: Secondary-side switch replacing Schottky diode; commutated at 100 kHz with zero-voltage switching. Use Value: 1.3 V body diode VF and 65 ns trr minimize reverse recovery loss; Qrr = 140 nC enables efficient synchronous control. | Use Scenario: Solid-state relay function in Wi-Fi-enabled smart plug controlling resistive and inductive loads up to 15 A. IC Role / Device Role / Timing Role: Main AC load switch using bridge rectifier + MOSFET topology; driven by ESP32 GPIO. Use Value: 23 A continuous rating and 96 A pulsed current handle surge currents from incandescent lamps and compressors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel logic-level MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IRLR2703 | Same die, D-Pak (TO-252AA) package; RθJA = 110 °C/W (vs. 50 °C/W for IRLU2703); surface-mount only. | Preferred where PCB space allows SMT assembly and thermal pad access is available. | Select IRLR2703 for higher-density layouts; choose IRLU2703 for through-hole reliability and easier prototyping. |
| FQP30N06L | 60 V V(BR)DSS, 0.028 Ω RDS(on) @ 10 V, but VGS(th) = 1.0–2.5 V - wider voltage margin but higher gate charge (27 nC). | Better suited for 48 V systems or where overvoltage headroom is critical. | Use FQP30N06L only if 60 V rating is required; IRLU2703 offers lower Qg and better thermal performance in 24–30 V designs. |
Compared with IRLR2703 and FQP30N06L, the IRLU2703 delivers optimal balance of low gate charge (15 nC), superior thermal resistance (50 °C/W), and proven avalanche ruggedness in 30 V industrial and automotive loads - making it preferred for cost-sensitive, thermally constrained through-hole designs.
Availability
IRLU2703 is available at Aetrix Electronics and suitable for brushless DC motor control, automotive body electronics, industrial DC-DC converters, and smart home power outlets requiring stable component supply across production lifecycles.
Supply support for IRLU2703 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, sensor, and automotive ICs, with heritage from International Rectifier's HEXFET innovation.
The IRLU2703 belongs to the fifth-generation HEXFET Power MOSFET product line, engineered for high-efficiency, logic-compatible switching in 12–30 V power conversion and motor drive applications.
FAQ
Is IRLU2703 suitable for 3.3 V microcontroller direct drive?
Yes. With VGS(th) as low as 1.0 V and guaranteed turn-on at VGS = 4.5 V (RDS(on) = 0.065 Ω), the IRLU2703 interfaces directly with 3.3 V GPIOs when series gate resistance is ≤10 Ω. Total gate charge is 15 nC, limiting required drive current to <1.5 mA for 100 ns edge rates.
What is the maximum continuous current at 70°C case temperature?
At TC = 70°C, linear derating (0.30 W/°C) reduces maximum power dissipation from 45 W to 36 W. Using RDS(on) = 0.045 Ω, the corresponding continuous current is √(36 W / 0.045 Ω) ≈ 28.3 A - but package-limited current is 20 A per datasheet note, so 20 A is the practical limit.
Does IRLU2703 have a built-in ESD protection diode?
No. The IRLU2703 does not integrate gate-oxide ESD protection. External 10 kΩ series resistor and 12 V Zener clamp between gate and source are recommended for handling >2 kV HBM events during board assembly and handling.
Can IRLU2703 replace IRLU120 in existing designs?
Yes, with validation. IRLU2703 offers lower RDS(on) (0.045 Ω vs. 0.12 Ω), higher ID (23 A vs. 12 A), and improved avalanche rating (77 mJ vs. 32 mJ). Pinout and package are identical (TO-251AA), but gate charge increases slightly (15 nC vs. 11 nC), requiring minor gate driver timing review.
IRLU2703 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-251-3 Short Leads, IPAK, TO-251AA
- 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:
- 23A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 4.5V, 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:
- Through Hole
- Supplier Device Package:
- IPAK
IRLU2703 FAQ
1.How can I place an order for IRLU2703 through Aetrix?
Please submit a Request for Quotation (RFQ) for IRLU2703 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 IRLU2703 reliable?
The price and inventory of IRLU2703 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLU2703 is usually 5 days.
3.What payment methods are accepted for IRLU2703?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLU2703 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRLU2703?
IRLU2703 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRLU2703 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 IRLU2703?
For technical support, including IRLU2703 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLU2703 requirements.
6.How does Aetrix verify that IRLU2703 is sourced from the original manufacturer or authorized distributors?
All IRLU2703 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 IRLU2703 meets industry standards.
7.What is the process for return or replacement of IRLU2703?
All IRLU2703 units undergo pre-shipment inspection (PSI). If there is an issue with IRLU2703, 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 IRLU2703 part is unused and in its original packaging.
Return procedure for IRLU2703:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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