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Infineon Technologies IRLR3105TRLPBF
- Part No.:
- IRLR3105TRLPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
IRLR3105TRLPBF.pdf
- Description:
- MOSFET N-CH 55V 25A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,061
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Product details
Overview
IRLR3105TRLPBF from Infineon Technologies is a logic-level N-channel enhancement-mode Power MOSFET in D-Pak (TO-252) package, rated for 55 V VDSS, 25 A continuous drain current at TC = 25°C, and 0.037 Ω RDS(on) at VGS = 10 V. It features 175°C maximum junction temperature, fast switching (tr = 57 ns, tf = 37 ns), and 94 mJ tested single-pulse avalanche energy - used in DC-DC synchronous rectification, motor drive half-bridges, and industrial power supplies.
For engineers reviewing the IRLR3105TRLPBF datasheet, IRLR3105TRLPBF pinout, IRLR3105TRLPBF application, or IRLR3105TRLPBF equivalent, key selection criteria include its logic-level gate drive compatibility (VGS(th) = 1.0–3.0 V), low RDS(on) at 5 V gate drive (35–43 mΩ), and validated repetitive avalanche capability up to Tjmax.
Technical Context
This HEXFET® device uses advanced planar processing to achieve ultra-low on-resistance per die area while maintaining robust avalanche performance. Its 7.5 nH internal source inductance (LS) and 4.5 nH drain inductance (LD) are optimized for high-frequency switching stability in hard-switched topologies.
The MOSFET supports gate drive voltages from ±16 V, with total gate charge of 20 nC (Qg) and Miller charge of 9.0 nC (Qgd) at VDS = 44 V - enabling efficient control with standard gate drivers. Its body diode exhibits 1.3 V forward voltage at 15 A and 52–78 ns reverse recovery time under defined test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDSS | 55 V - Maximum blocking voltage before avalanche onset; defines safe operating range in 48 V bus systems. |
| RDS(on) @ VGS = 10 V | 0.037 Ω - Enables <1 W conduction loss at 25 A, critical for thermally constrained PCB-mount designs. |
| ID @ TC = 25°C | 25 A - Continuous current rating with heatsink; derates linearly at 0.38 W/°C above 25°C case temperature. |
| Qg | 20 nC - Total gate charge determines driver power requirement and switching transition time in PWM circuits. |
| EAS (tested) | 94 mJ - Validated single-pulse avalanche energy ensures reliability during inductive load turn-off transients. |
| tr/tf | 57 ns / 37 ns - Fast rise/fall times reduce switching losses in >100 kHz DC-DC converters and motor drives. |
| TJ max | 175°C - High junction temperature rating allows operation in sealed enclosures or high-ambient industrial environments. |
Pinout & Package
IRLR3105TRLPBF is housed in a surface-mount D-Pak (TO-252) package with gull-wing leads, designed for vapor-phase, infrared, or wave soldering on FR-4 PCBs. Thermal resistance is 2.65°C/W junction-to-case and 50°C/W junction-to-ambient (PCB mount).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Power return path and gate reference node | Low-inductance connection point for source loop; ties directly to ground plane in high-di/dt layouts. |
| Pin 2 (Gate) | Control input for channel conduction | Logic-compatible input requiring ≤3.0 V threshold; sensitive to ESD (±16 V absolute max rating). |
| Pin 3 (Drain) | Main power output terminal | High-current path connected to load/bus; electrically isolated from tab; requires thermal pad anchoring. |
Key Features
| Feature | Design Value |
|---|---|
| Logic-level gate drive | Operates fully enhanced at 5 V gate voltage (RDS(on) = 35–43 mΩ), eliminating need for level-shifting in 3.3 V/5 V microcontroller interfaces. |
| Ultra-low RDS(on) | 0.037 Ω at 10 V enables <0.5 W conduction loss at 12 A - reduces thermal footprint in space-constrained power stages. |
| Repetitive avalanche rated | Validated for repeated unclamped inductive switching up to Tjmax, supporting robust motor control and relay driving without external snubbers. |
| 175°C junction rating | Supports extended operation in automotive under-hood or industrial ambient temperatures exceeding 105°C. |
| Lead-free and RoHS-compliant | Pb-free plating and halogen-free molding compound meet IPC/JEDEC J-STD-020 reflow profile requirements. |
Applications
| Brushless DC Motor Control | Industrial DC-DC Converters |
|---|---|
|
Use Scenario: Half-bridge leg in 24–48 V BLDC inverters driving fans, pumps, or compressors. IC Role / Device Role / Timing Role: Low-side switching element with fast turn-off to minimize shoot-through risk during PWM commutation. Use Value: 37 ns fall time and 9.0 nC Miller charge reduce dead-time uncertainty and improve efficiency at 20–50 kHz switching frequencies. |
Use Scenario: Synchronous rectifier in isolated 48 V input, 12 V output flyback or forward converter. IC Role / Device Role / Timing Role: Secondary-side power switch replacing Schottky diode to reduce conduction losses. Use Value: 0.037 Ω RDS(on) cuts rectifier loss by >60% vs. 40 V/15 A Schottky, improving full-load efficiency by 1.2–1.8%. |
| Automotive Body Control Modules | LED Driver Power Stages |
|
Use Scenario: Load switch for solenoids, relays, or heated mirrors in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: High-reliability power switch handling inrush and inductive kickback without external protection. Use Value: 94 mJ tested avalanche energy absorbs >10× typical relay coil energy, eliminating need for TVS clamping. |
Use Scenario: Constant-current switch in high-brightness LED string drivers for signage or lighting. IC Role / Device Role / Timing Role: PWM-controlled current regulator with low thermal resistance for stable brightness control. Use Value: 2.65°C/W RθJC enables direct heatsinking to metal chassis, sustaining 20 A pulsed current without derating. |
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 |
|---|---|---|---|
| IRLR3715TRLPBF | VDSS = 25 V, RDS(on) = 0.012 Ω @ 10 V, lower voltage rating | Better suited for 12 V systems where lower RDS(on) justifies reduced breakdown margin | Select when bus voltage ≤20 V and conduction loss dominates over voltage safety margin |
| STP55NF06L | VDSS = 60 V, RDS(on) = 0.018 Ω @ 10 V, TO-220 package | Higher thermal mass but through-hole mounting; lacks D-Pak's PCB thermal efficiency | Prefer for prototyping or legacy through-hole boards where D-Pak rework is impractical |
Compared with IRLR3105TRLPBF, IRLR3715TRLPBF offers lower on-resistance in low-voltage systems but sacrifices 30 V headroom, while STP55NF06L provides higher voltage margin and easier thermal management via TO-220 heatsinking - yet increases board area and assembly cost.
Availability
IRLR3105TRLPBF is available at Aetrix Electronics and suitable for industrial motor drives, automotive body electronics, and high-efficiency DC-DC converters requiring stable component supply across multi-year production cycles.
Supply support for IRLR3105TRLPBF 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, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.
This part belongs to Infineon's HEXFET® Power MOSFET product line, engineered for high-efficiency, high-reliability switching in demanding power conversion and load control applications - emphasizing low RDS(on), fast switching, and rugged avalanche performance.
FAQ
What is the maximum gate-source voltage rating for IRLR3105TRLPBF?
The absolute maximum gate-to-source voltage is ±16 V. Exceeding this risks permanent gate oxide damage. Designers must ensure gate drive circuits limit transient overshoot - especially during hot-plug or inductive coupling events - using series resistors or Zener clamps referenced to source.
Can IRLR3105TRLPBF be used without a heatsink in a 25 A application?
No. At 25 A and 0.037 Ω RDS(on), conduction loss is ~23 W. With RθJA = 50°C/W (PCB mount), junction temperature would exceed 175°C even at 25°C ambient. A minimum copper pour (≥1"²) plus optional heatsink is required to maintain safe Tj under continuous load.
How does the body diode performance affect synchronous rectifier use?
The body diode has VSD = 1.3 V at 15 A and trr = 52–78 ns. In synchronous rectification, this limits minimum duty cycle and increases reverse recovery loss if not actively commutated. Use gate timing that ensures MOSFET turn-on before body diode conduction ends to avoid cross-conduction.
Is IRLR3105TRLPBF suitable for automotive AEC-Q101 qualification?
No. While it meets industrial temperature range (–55°C to +175°C), IRLR3105TRLPBF is not AEC-Q101 qualified. For automotive applications requiring qualification, consider Infineon's AEC-Q101-compliant equivalents such as IPD95R1K2P7 or IPA60R190P7S, which undergo stress testing for humidity, temperature cycling, and ESD robustness.
IRLR3105TRLPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 25A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 5V, 10V
- Rds On (Max) @ Id, Vgs:
- 37mOhm @ 15A, 10V
- Vgs(th) (Max) @ Id:
- 3V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 20 nC @ 5 V
- Vgs (Max):
- ±16V
- Input Capacitance (Ciss) (Max) @ Vds:
- 710 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 57W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
IRLR3105TRLPBF FAQ
1.How can I place an order for IRLR3105TRLPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRLR3105TRLPBF 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 IRLR3105TRLPBF reliable?
The price and inventory of IRLR3105TRLPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRLR3105TRLPBF is usually 5 days.
3.What payment methods are accepted for IRLR3105TRLPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRLR3105TRLPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRLR3105TRLPBF?
IRLR3105TRLPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRLR3105TRLPBF 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 IRLR3105TRLPBF?
For technical support, including IRLR3105TRLPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRLR3105TRLPBF requirements.
6.How does Aetrix verify that IRLR3105TRLPBF is sourced from the original manufacturer or authorized distributors?
All IRLR3105TRLPBF 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 IRLR3105TRLPBF meets industry standards.
7.What is the process for return or replacement of IRLR3105TRLPBF?
All IRLR3105TRLPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRLR3105TRLPBF, 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 IRLR3105TRLPBF part is unused and in its original packaging.
Return procedure for IRLR3105TRLPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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