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Infineon Technologies AUIRFR5305TR
- Part No.:
- AUIRFR5305TR
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AUIRFR5305TR.pdf
- Description:
- MOSFET P-CH 55V 31A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:1,519
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Product details
Overview
AUIRFR5305TR from Infineon is an automotive-grade N-channel enhancement-mode HEXFET® Power MOSFET in D-Pak (TO-252AA) package, rated for -55 V V(BR)DSS, 0.065 Ω RDS(on) max at VGS = -10 V and ID = -16 A, and -31 A continuous drain current at TC = 25°C. It operates up to +175°C junction temperature, features fully repetitive avalanche capability (EAR = 11 mJ), and is qualified per AEC-Q101 for under-hood automotive power switching.
For engineers reviewing the AUIRFR5305TR datasheet, AUIRFR5305TR pinout, AUIRFR5305TR application, or AUIRFR5305TR equivalent, key selection criteria include its -55 V breakdown voltage, low 0.065 Ω on-resistance, -110 A pulsed drain rating, fast 66 ns rise time, and automotive qualification status - all critical for high-reliability 12 V/24 V DC load switching designs.
Technical Context
This device implements a cellular planar silicon structure optimized for low RDS(on)/area and robust unclamped inductive switching. Its dynamic dv/dt rating of -5.0 V/ns and fully rated repetitive avalanche (up to Tjmax) enable reliable operation in harsh automotive transients such as load dump and inductive kickback.
The gate charge profile shows Qg = 63 nC total with Qgd = 29 nC, supporting efficient hard-switching in DC-DC converters and motor drivers. Thermal resistance RθJC = 1.4 °C/W enables high-power dissipation when mounted on copper-clad PCBs with thermal vias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| V(BR)DSS | -55 V - Withstands reverse-biased drain-source transients up to automotive load dump levels without breakdown. |
| RDS(on) max | 0.065 Ω @ VGS = -10 V, ID = -16 A - Enables <1 W conduction loss at 31 A DC, suitable for high-current solenoid and lamp drivers. |
| ID (TC = 25°C) | -31 A - Supports continuous 30+ A loads in engine control modules with adequate heatsinking. |
| EAS | 280 mJ - Absorbs single-pulse inductive energy from relay coils or fuel injectors without failure. |
| dv/dt Rating | -5.0 V/ns - Resists false turn-on during fast voltage transients in noisy vehicle electrical systems. |
| TJ Range | -55°C to +175°C - Meets under-hood ambient requirements for transmission control units and body electronics. |
| Qg | 63 nC - Determines gate driver current requirement (~1.3 A peak for 50 ns turn-on with 10 V swing). |
Pinout & Package
D-Pak (TO-252AA) surface-mount package with exposed drain pad for thermal and electrical connection; standard 3-pin configuration with G-S-D terminal assignment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Gate (G) | Control input | Receives negative VGS to turn on; threshold -2.0 to -4.0 V; requires gate resistor to limit ringing and dV/dt-induced turn-on. |
| Source (S) | Reference node | Common return path for load current; tied to system ground or low-side switch reference; body diode anode. |
| Drain (D) | Power output | Connected to load high-side; electrically and thermally coupled to exposed backside metal pad; carries full switched current. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - Validated for lifetime reliability in automotive environments including temperature cycling, humidity, and mechanical shock. |
| Repetitive avalanche rating | EAR = 11 mJ - Allows repeated safe operation during inductive switching events without derating or external snubbers. |
| Fast switching | tr = 66 ns, tf = 63 ns - Reduces switching losses in PWM-controlled DC motors and LED drivers operating above 20 kHz. |
| Low RDS(on) density | 0.065 Ω @ -16 A - Achieves high efficiency in space-constrained ECUs where thermal management is limited. |
| High-temperature operation | 175°C TJ max - Maintains functionality in proximity to engines, transmissions, and exhaust systems. |
Applications
| Engine Control Unit (ECU) Fuel Injector Driver | Body Control Module (BCM) Headlamp Switch |
|---|---|
Use Scenario: High-speed, high-current switching of 12 V fuel injectors in gasoline direct injection systems. IC Role / Device Role / Timing Role: Low-side power switch controlling injector coil energization with precise 1–5 ms pulse width modulation. Use Value: 0.065 Ω RDS(on) limits conduction loss to <0.6 W at 31 A, while 280 mJ EAS absorbs inductive flyback without external diodes. | Use Scenario: PWM dimming and on/off control of 55 W halogen or 30 W LED headlamps in modern BCMs. IC Role / Device Role / Timing Role: High-current, thermally robust low-side switch enabling duty-cycle-based brightness control. Use Value: -175°C to +175°C operating range ensures stable performance across ambient temperatures from -40°C cold start to +105°C under-hood conditions. |
| Transmission Control Unit (TCU) Solenoid Driver | Electric Power Steering (EPS) Motor Phase Switch |
Use Scenario: Driving 24 V hydraulic pressure control solenoids in automatic transmissions requiring >20 A peak current. IC Role / Device Role / Timing Role: Robust low-side switch handling repetitive 100 ms pulses with high di/dt and inductive kickback. Use Value: Fully rated repetitive avalanche (11 mJ) eliminates need for external clamping, reducing BOM count and board area. | Use Scenario: Half-bridge phase leg in 12 V EPS brushless DC motor controllers. IC Role / Device Role / Timing Role: High-efficiency, high-reliability low-side switch in three-phase inverter topology. Use Value: 63 nC total gate charge enables clean 20 kHz PWM switching with minimal driver power loss and EMI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar N-channel automotive power MOSFET applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STL225N5LF8AG | 55 V V(BR)DSS, 0.0019 Ω RDS(on) max, 225 A ID, PowerFLAT 5x6 package | Higher current rating and lower RDS(on), but requires different layout and thermal interface due to smaller footprint | Select for higher efficiency in new designs with space-constrained layouts; not drop-in compatible |
| IRF4905PBF | 55 V V(BR)DSS, 0.02 Ω RDS(on) max, 74 A ID, TO-220 package | Larger through-hole package, no AEC-Q101 qualification, higher RDS(on) than AUIRFR5305TR | Acceptable for non-automotive industrial use where qualification and surface-mount are not required |
Compared with STL225N5LF8AG and IRF4905PBF, the AUIRFR5305TR offers optimal balance of automotive qualification, D-Pak thermal performance, and proven ruggedness in production ECUs - making it preferred for cost-sensitive, volume automotive programs requiring AEC compliance and surface-mount assembly.
Availability
AUIRFR5305TR is available at Aetrix Electronics and suitable for engine control units, body control modules, transmission control units, and electric power steering systems requiring stable component supply across automotive production lifecycles.
Supply support for AUIRFR5305TR 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 infrastructure.
The AUIRFR5305TR belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, designed specifically for high-reliability 12 V/24 V DC load switching in engine, chassis, and body electronics.
FAQ
Is AUIRFR5305TR pin-compatible with AUIRFU5305?
No. AUIRFR5305TR uses the D-Pak (TO-252AA) package with Drain-Source-Gate pin order (pin 1 = Gate, pin 2 = Source, pin 3 = Drain), while AUIRFU5305 uses the I-Pak (TO-251) package with identical pinout but different thermal and mechanical mounting characteristics. Layout and thermal design must be revalidated.
What is the maximum recommended gate resistor value for driving AUIRFR5305TR in PWM mode?
For 20 kHz PWM with <10% overshoot and minimal switching loss, a 10 Ω gate resistor is recommended. Higher values (>22 Ω) increase turn-on time beyond 50 ns and risk shoot-through in half-bridge configurations; lower values (<4.7 Ω) may cause gate ringing without proper PCB layout.
Does AUIRFR5305TR require an external freewheeling diode when switching inductive loads?
No. The integrated body diode supports continuous source current up to -31 A and pulsed current up to -110 A, and the device is fully rated for repetitive avalanche (11 mJ). External diodes are unnecessary unless ultra-fast recovery (<50 ns) or lower forward voltage (<1.0 V) is required.
Can AUIRFR5305TR be used in parallel configurations for higher current handling?
Yes, but only with matched devices, individual gate resistors (≥10 Ω), and symmetrical PCB layout to ensure current sharing. Thermal coupling via shared copper pour and Kelvin source connections are essential; mismatched RDS(on) or layout asymmetry can cause >30% current imbalance at full load.
AUIRFR5305TR 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:
- Obsolete
- FET Type:
- P-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 31A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- -
- Rds On (Max) @ Id, Vgs:
- 65mOhm @ 16A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 63 nC @ 10 V
- Vgs (Max):
- -
- Input Capacitance (Ciss) (Max) @ Vds:
- 1200 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
AUIRFR5305TR FAQ
1.How can I place an order for AUIRFR5305TR through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRFR5305TR 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 AUIRFR5305TR reliable?
The price and inventory of AUIRFR5305TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFR5305TR is usually 5 days.
3.What payment methods are accepted for AUIRFR5305TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFR5305TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRFR5305TR?
AUIRFR5305TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRFR5305TR 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 AUIRFR5305TR?
For technical support, including AUIRFR5305TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFR5305TR requirements.
6.How does Aetrix verify that AUIRFR5305TR is sourced from the original manufacturer or authorized distributors?
All AUIRFR5305TR 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 AUIRFR5305TR meets industry standards.
7.What is the process for return or replacement of AUIRFR5305TR?
All AUIRFR5305TR units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFR5305TR, 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 AUIRFR5305TR part is unused and in its original packaging.
Return procedure for AUIRFR5305TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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