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Infineon Technologies AUIRFR4105ZTRL
- Part No.:
- AUIRFR4105ZTRL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AUIRFR4105ZTRL.pdf
- Description:
- MOSFET N-CH 55V 20A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:6,007
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Product details
Overview
AUIRFR4105ZTRL from Infineon is an automotive-grade N-channel D-Pak HEXFET® Power MOSFET with 55 V VDS, 24.5 mΩ max RDS(on) at VGS = 10 V and 18 A, 175 °C maximum junction temperature, and rated for repetitive avalanche operation. It serves as a high-efficiency main or synchronous rectifier switch in 12 V automotive power systems including DC-DC converters, motor drivers, and load switches.
For engineers reviewing the AUIRFR4105ZTRL datasheet, AUIRFR4105ZTRL pinout, AUIRFR4105ZTRL application, or AUIRFR4105ZTRL equivalent, key selection criteria include its 30 A continuous drain current at TC = 25 °C, 46 mJ tested single-pulse avalanche energy, 18 nC typical gate charge, and D-Pak thermal resistance of 3.12 °C/W (junction-to-case).
Technical Context
This MOSFET employs Infineon's advanced process technology to achieve ultra-low on-resistance per die area while maintaining robust avalanche capability. Its static characteristics include 2.0–4.0 V gate threshold voltage and 16 S forward transconductance at VDS = 15 V, enabling precise gate control in high-current switching.
The device supports fast switching with 10 ns turn-on delay, 40 ns rise time, and 24 ns fall time under defined test conditions (VDD = 28 V, ID = 18 A, RG = 24.5 Ω). Its body diode exhibits 19–29 ns reverse recovery time and 14–21 nC reverse recovery charge, critical for synchronous rectification efficiency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Maximum blocking voltage for 12 V automotive battery systems with load dump margin. |
| RDS(on) max | 24.5 mΩ @ VGS = 10 V, ID = 18 A - Enables ≤0.8 W conduction loss at 18 A, reducing heatsink requirements. |
| ID continuous | 30 A @ TC = 25 °C - Supports high-current loads such as HVAC blowers and EPS assist motors. |
| EAS tested | 46 mJ - Verified unclamped inductive switching capability under standardized test (L = 0.18 mH, IAS = 18 A). |
| Qg typ | 18 nC - Determines gate drive power and switching speed; compatible with standard 1-A peak gate drivers. |
| TJ max | +175 °C - Enables operation in under-hood environments without derating below ambient extremes. |
| RθJC | 3.12 °C/W - Allows direct thermal path to heatsink; enables >15 W steady-state power dissipation with 50 °C ΔT. |
Pinout & Package
Package: D-Pak (TO-252AA), surface-mount, single-die configuration with exposed drain pad for thermal and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | Main current-carrying terminal, connected to exposed metal tab | Primary heat transfer path; must be soldered to copper pour for thermal performance and current capacity. |
| Source (S) | Reference node for gate drive and current return path | Low-inductance source loop critical for EMI control; internal source inductance LS = 7.5 nH. |
| Gate (G) | Control electrode for channel formation | High-impedance input requiring <200 nA leakage; gate threshold 2.0–4.0 V enables compatibility with 3.3 V/5 V logic. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) | 19 mΩ typ @ 10 V - Reduces I²R losses by ≥25% vs. legacy automotive MOSFETs at same current density. |
| Repetitive avalanche rating | Rated per Fig. 12a–12b and AN-1005 - Enables reliable operation in inductive load switching without external snubbers. |
| 175 °C junction rating | Qualified per AEC-Q101 - Eliminates thermal derating in engine bay applications up to +125 °C ambient. |
| Fast switching with low Qgd/Qgs | Qgd = 7.0 nC, Qgs = 5.3 nC - Minimizes Miller plateau duration, improving hard-switching efficiency. |
| Automotive qualification | AEC-Q101 qualified - Meets stress testing requirements for vibration, temperature cycling, and HTRB. |
Applications
| Engine Control Unit (ECU) Power Switching | Automotive DC-DC Converter Primary Switch |
|---|---|
Use Scenario: High-side switching of fuel injector or ignition coil drivers in gasoline/diesel ECUs. IC Role / Device Role / Timing Role: Main power switch controlling 12 V battery-fed inductive loads with µs-level timing precision. Use Value: 175 °C rating ensures uninterrupted operation during extended engine runtime; 46 mJ avalanche energy absorbs inductive kickback without clamping diodes. |
Use Scenario: Primary-side switch in 12 V to 5 V/3.3 V buck converters powering ADAS sensors and infotainment modules. IC Role / Device Role / Timing Role: High-frequency (200–500 kHz) synchronous rectifier switch with low Qg and fast tr/tf. Use Value: 24.5 mΩ RDS(on) limits conduction loss to <0.8 W at 18 A, enabling compact thermally constrained PCB layouts. |
| Electric Power Steering (EPS) Motor Driver | Automotive Body Control Module (BCM) Load Switch |
Use Scenario: Half-bridge leg in 12 V EPS motor H-bridge driving brushed or BLDC assist motors. IC Role / Device Role / Timing Role: Low-side or high-side PWM-controlled power stage with bidirectional current handling via body diode. Use Value: 120 A pulsed drain current and 19 ns diode trr support high-torque transient response without shoot-through risk. |
Use Scenario: Solid-state replacement for mechanical relays controlling headlights, fog lamps, or cooling fans. IC Role / Device Role / Timing Role: Single-pole, high-current load switch with integrated overtemperature protection via TJ monitoring. Use Value: 30 A continuous rating at 25 °C case temperature allows direct replacement of 40 A relays with lower EMI and no contact bounce. |
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 |
|---|---|---|---|
| STL130N5LF6AG | 60 V VDS, 2.2 mΩ RDS(on) @ 10 V, 130 A ID, PowerFLAT 5x6 package | Lower RDS(on) but higher gate charge (42 nC); requires larger gate driver; not AEC-Q101 qualified | Select when ultra-low conduction loss dominates over gate drive complexity and qualification requirements. |
| IRF4905PBF | 55 V VDS, 20 mΩ RDS(on), TO-220 package, non-automotive grade, 150 °C TJ max | No repetitive avalanche rating; higher RθJA (62 °C/W); lacks AEC-Q101 validation and 175 °C rating | Select only for non-automotive industrial prototypes where cost outweighs reliability and thermal margin. |
Compared with STL130N5LF6AG and IRF4905PBF, AUIRFR4105ZTRL uniquely balances automotive qualification, 175 °C operation, verified avalanche ruggedness, and D-Pak thermal performance-making it optimal for production-grade under-hood switching where safety and longevity are mandated.
Availability
AUIRFR4105ZTRL is available at Aetrix Electronics and suitable for automotive power distribution, engine management systems, and electric power steering requiring stable component supply across multi-year vehicle production cycles.
Supply support for AUIRFR4105ZTRL 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.
AUIRFR4105ZTRL belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for high-reliability 12 V battery system switching where thermal robustness, avalanche tolerance, and AEC-Q101 compliance are mandatory.
FAQ
Is AUIRFR4105ZTRL pin-compatible with other D-Pak N-channel MOSFETs?
Yes - AUIRFR4105ZTRL uses standard D-Pak (TO-252AA) pinout: Drain (tab), Source (pin 1), Gate (pin 2). It shares footprint and thermal pad layout with industry-standard D-Pak devices like IRFZ44N and STP30NF20, enabling drop-in replacement where RDS(on), voltage rating, and qualification align.
What is the maximum recommended gate resistor value for hard-switching at 250 kHz?
For 250 kHz hard-switching with 18 A load, a 10 Ω gate resistor is recommended to limit peak current to ~1.5 A while maintaining 40 ns rise time. Values above 22 Ω increase switching losses significantly; values below 5 Ω risk ringing due to 7.5 nH source inductance and 4.5 nH drain inductance.
Does AUIRFR4105ZTRL require external avalanche protection in automotive inductive loads?
No - AUIRFR4105ZTRL is explicitly rated for repetitive avalanche operation per Figures 12a–12b and AN-1005. With 46 mJ tested single-pulse energy and validated performance up to 18 A avalanche current, it safely handles inductive kickback from solenoids, fuel injectors, and motors without external snubbers when operated within TJ ≤ 175 °C.
Can AUIRFR4105ZTRL be used in parallel configurations?
Yes - its positive RDS(on) temperature coefficient (normalized to 2.0 at 175 °C) ensures inherent current sharing. Parallel operation requires matched gate drive paths, symmetrical PCB layout, and individual gate resistors (≤10 Ω) to prevent oscillation; thermal coupling via shared heatsink improves balance.
AUIRFR4105ZTRL 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:
- Not For New Designs
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 20A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 24.5mOhm @ 18A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 27 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 740 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 48W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
AUIRFR4105ZTRL FAQ
1.How can I place an order for AUIRFR4105ZTRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRFR4105ZTRL 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 AUIRFR4105ZTRL reliable?
The price and inventory of AUIRFR4105ZTRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFR4105ZTRL is usually 5 days.
3.What payment methods are accepted for AUIRFR4105ZTRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFR4105ZTRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRFR4105ZTRL?
AUIRFR4105ZTRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRFR4105ZTRL 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 AUIRFR4105ZTRL?
For technical support, including AUIRFR4105ZTRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFR4105ZTRL requirements.
6.How does Aetrix verify that AUIRFR4105ZTRL is sourced from the original manufacturer or authorized distributors?
All AUIRFR4105ZTRL 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 AUIRFR4105ZTRL meets industry standards.
7.What is the process for return or replacement of AUIRFR4105ZTRL?
All AUIRFR4105ZTRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFR4105ZTRL, 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 AUIRFR4105ZTRL part is unused and in its original packaging.
Return procedure for AUIRFR4105ZTRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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