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Infineon Technologies IRLU2703PBF
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- Part No.:
- IRLU2703PBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-251-3 Short Leads, IPAK, TO-251AA
- Datasheet:
-
IRLU2703PBF.pdf
- Description:
- MOSFET N-CH 30V 23A IPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,965
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Product details
Overview
IRLU2703PBF 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, 23 A continuous drain current at 25°C, and 0.045 Ω RDS(on) at VGS = 10 V. It features ultra-low on-resistance, fast switching, full avalanche rating, and is optimized for DC-DC converters, motor control, and load switching in industrial power supplies.
For engineers reviewing the IRLU2703PBF datasheet, IRLU2703PBF pinout, IRLU2703PBF application, or IRLU2703PBF equivalent, key selection criteria include gate threshold voltage (1.0–2.5 V), thermal resistance (RθJA = 110 °C/W), body diode recovery performance (trr = 65–97 ns), and lead-free compliance per JEDEC J-STD-020.
Technical Context
This MOSFET employs fifth-generation HEXFET process technology to minimize conduction losses while maintaining robust avalanche energy handling (EAS = 77 mJ). Its logic-level gate drive enables direct interface with 3.3 V and 5 V microcontrollers without level-shifting circuitry.
The device integrates a low-Qrr (140–210 nC) body diode with controlled reverse recovery (dv/dt = 5.0 V/ns), supporting high-frequency synchronous rectification and reducing switching losses in buck and half-bridge topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)DSS | 30 V - Maximum blocking voltage before avalanche onset; sets upper limit for input rail in 24 V systems. |
| RDS(on) | 0.045 Ω @ VGS = 10 V - Enables <1.1 W conduction loss at 23 A, critical for thermally constrained PCB layouts. |
| ID (TC = 25°C) | 23 A - Continuous current capability limited by package thermal resistance, not silicon. |
| VGS(th) | 1.0–2.5 V - Ensures reliable turn-on with standard logic outputs; avoids marginal biasing near threshold. |
| Qg / Qgd | 15 nC / 9.3 nC - Miller charge dominates switching behavior; dictates gate driver strength requirement for <20 ns fall time. |
| trr / Qrr | 65–97 ns / 140–210 nC - Low reverse recovery charge minimizes shoot-through risk and EMI in hard-switched converters. |
| EAS | 77 mJ - Supports unclamped inductive switching up to 14 A without failure; eliminates need for external snubbers in relay drivers. |
Pinout & Package
IRLU2703PBF uses the TO-251AA (I-Pak) surface-mount-compatible through-hole package with three leads: Drain (D), Source (S), and Gate (G). The package features isolated tab (Drain-connected) and straight leads for wave-solder compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Lead 1 (Left) | Gate (G) | High-impedance control terminal; requires <100 nA leakage budget and <15 nC total charge for 100 kHz switching. |
| Lead 2 (Center) | Drain (D) | Main power output node; electrically connected to metal tab; must be isolated from heatsink unless referenced to system ground. |
| Lead 3 (Right) | Source (S) | Power return path and gate reference; forms common node with driver IC ground; carries full load current and body diode reverse recovery current. |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced at VGS ≥ 4.5 V, enabling direct drive from ARM Cortex-M GPIOs without external level shifters. |
| Fully avalanche-rated | Withstands 77 mJ single-pulse avalanche energy, eliminating derating for inductive load transients in solenoid drivers. |
| Ultra-low RDS(on) | 0.045 Ω at 10 V ensures <0.5 W conduction loss at 10 A, reducing thermal pad area requirements on 2-layer PCBs. |
| Fast body diode recovery | trr ≤ 97 ns and Qrr ≤ 210 nC allow operation up to 500 kHz in synchronous buck converters without cross-conduction penalties. |
| Lead-free and RoHS-compliant | Meets JEDEC J-STD-020 reflow profile; compatible with Pb-free assembly lines and exempt from EU ELV restrictions. |
Applications
| DC-DC Converter Switch | Brushed DC Motor Driver |
|---|---|
Use Scenario: High-efficiency 12 V to 5 V/3.3 V buck converter in programmable logic controllers. IC Role / Device Role / Timing Role: Primary high-side switch operating at 300–500 kHz with synchronous rectification. Use Value: 0.045 Ω RDS(on) reduces conduction loss by 40% vs. legacy 0.075 Ω MOSFETs, improving full-load efficiency from 89% to 92%. | Use Scenario: H-bridge driver for 24 V brushed motors in automated gate actuators. IC Role / Device Role / Timing Role: Low-side switch controlling motor direction and PWM speed regulation. Use Value: 77 mJ EAS rating absorbs back-EMF spikes during abrupt stop commands, eliminating need for external TVS clamps. |
| Industrial Load Switch | LED Constant-Current Driver |
Use Scenario: Solid-state relay replacement for 20 A resistive heating elements in HVAC control panels. IC Role / Device Role / Timing Role: On/off power switch with soft-start via gate resistor limiting dV/dt. Use Value: 23 A continuous rating at 25°C and 16 A at 100°C allows derated operation without heatsink in sealed enclosures. | Use Scenario: Dimmable constant-current LED driver for architectural lighting with 0–10 V analog dimming. IC Role / Device Role / Timing Role: Current-sense FET in linear regulator topology with feedback loop compensation. Use Value: Low VGS(th) tolerance (1.0–2.5 V) ensures consistent turn-on across temperature, maintaining ±2% LED current accuracy. |
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 |
|---|---|---|---|
| IRLR2703PBF | Same die, D-Pak (TO-252AA) package; RθJA = 50 °C/W vs. 110 °C/W; higher power dissipation (45 W vs. 1.5 W). | Suitable for surface-mount designs requiring higher thermal headroom; not interchangeable mechanically. | Select when board space permits SMT mounting and >2 W continuous power is needed. |
| STP36NF06L | 60 V V(BR)DSS, 0.035 Ω RDS(on), 36 A ID; higher voltage rating but larger Qg (42 nC) and slower switching. | Better for 48 V systems; less suitable for high-frequency (>200 kHz) or low-voltage logic-drive applications. | Choose only if 60 V blocking and higher current are required; avoid where gate drive strength is limited. |
Compared with IRLR2703PBF, the IRLU2703PBF trades lower thermal performance for through-hole assembly compatibility and smaller footprint; versus STP36NF06L, it offers superior switching speed and logic-level drive at the cost of reduced voltage margin and current rating.
Availability
IRLU2703PBF is available at Aetrix Electronics and suitable for industrial motor control, DC-DC conversion, and solid-state relay replacement requiring stable component supply and long-term lifecycle support.
Supply support for IRLU2703PBF 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 AG is a German semiconductor manufacturer specializing in power management, automotive electronics, and industrial control ICs and discrete devices.
The IRLUxx series belongs to Infineon's legacy HEXFET logic-level MOSFET product line, designed specifically for low-voltage, high-efficiency switching in cost-sensitive industrial and consumer power systems.
FAQ
Is IRLU2703PBF pin-compatible with IRLR2703PBF?
No. IRLU2703PBF uses TO-251AA (I-Pak) with straight leads for through-hole mounting, while IRLR2703PBF uses TO-252AA (D-Pak) for surface mounting. Pin functions match (G-D-S), but mechanical layout, thermal path, and soldering method differ fundamentally.
What is the maximum safe operating temperature for continuous 23 A drain current?
Continuous 23 A is rated only at TC = 25°C. At TJ = 175°C max, derating yields 16 A at TC = 100°C. For sustained 23 A operation, case temperature must remain ≤25°C-achievable only with active cooling or large copper pours due to RθJA = 110 °C/W.
Does the body diode support synchronous rectification in buck converters?
Yes-the body diode has trr = 65–97 ns and Qrr = 140–210 nC, enabling use in synchronous rectification up to ~500 kHz. However, its VSD = 1.3 V at 14 A increases conduction loss versus Schottky alternatives; best suited for cost-optimized mid-frequency designs.
Can IRLU2703PBF replace IRFU2703 in existing designs?
Yes-IRLU2703PBF and IRFU2703 share identical electrical specifications, TO-251AA package, and lead-free construction. The "PBF" suffix confirms Pb-free compliance matching IRFU2703's final revision; no layout or firmware changes are required for drop-in replacement.
IRLU2703PBF 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 (TO-251AA)
IRLU2703PBF FAQ
1.How can I place an order for IRLU2703PBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRLU2703PBF 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 IRLU2703PBF reliable?
The price and inventory of IRLU2703PBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLU2703PBF is usually 5 days.
3.What payment methods are accepted for IRLU2703PBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLU2703PBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRLU2703PBF?
IRLU2703PBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRLU2703PBF 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 IRLU2703PBF?
For technical support, including IRLU2703PBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLU2703PBF requirements.
6.How does Aetrix verify that IRLU2703PBF is sourced from the original manufacturer or authorized distributors?
All IRLU2703PBF 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 IRLU2703PBF meets industry standards.
7.What is the process for return or replacement of IRLU2703PBF?
All IRLU2703PBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLU2703PBF, 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 IRLU2703PBF part is unused and in its original packaging.
Return procedure for IRLU2703PBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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