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Infineon Technologies AUIRFR2905ZTRL
- Part No.:
- AUIRFR2905ZTRL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AUIRFR2905ZTRL.pdf
- Description:
- MOSFET N-CH 55V 42A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:4,559
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Product details
Overview
AUIRFR2905ZTRL from Infineon is an automotive-grade N-channel D-Pak MOSFET with 55 V VDS, 11.1 mΩ RDS(on) (typ.), 42 A continuous drain current (package-limited), and 175 °C maximum junction temperature. It delivers ultra-low conduction loss and fast switching for high-efficiency DC-DC converters, motor control inverters, and load switch circuits in engine management and body electronics.
For engineers reviewing the AUIRFR2905ZTRL datasheet, AUIRFR2905ZTRL pinout, AUIRFR2905ZTRL application, or AUIRFR2905ZTRL equivalent, key selection criteria include its 14.5 mΩ max RDS(on) at 10 VGS, 29 nC total gate charge, 1.38 °C/W RθJC, repetitive avalanche rating up to Tjmax, and AEC-Q101 qualification.
Technical Context
This HEXFET® Power MOSFET uses advanced silicon processing to achieve low on-resistance per die area while maintaining robust thermal performance. Its 175 °C rated junction temperature and 1.38 °C/W junction-to-case thermal resistance enable high-power density operation under sustained load conditions in constrained automotive environments.
The device supports unclamped inductive switching with tested single-pulse avalanche energy of 82 mJ and validated repetitive avalanche capability up to Tjmax. Its dynamic parameters-including 14 ns turn-on delay, 66 ns rise time, and 12 nC Qgd-are optimized for hard-switched topologies operating at frequencies up to several hundred kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Withstands transient overvoltage spikes common in 12 V automotive systems without breakdown. |
| RDS(on) (typ.) | 11.1 mΩ @ VGS = 10 V, ID = 36 A - Enables <1.3 W conduction loss at 42 A, reducing heatsink requirements. |
| ID (cont.) | 42 A @ TC = 100 °C - Package-limited current defines safe continuous operation with standard PCB mounting. |
| Qg | 29 nC (max. 44 nC) - Determines gate drive power and switching speed in PWM applications. |
| EAS (tested) | 82 mJ - 100% production-tested avalanche energy ensures reliability during inductive load turn-off. |
| RθJC | 1.38 °C/W - Enables direct thermal coupling to heatsinks for high-power dissipation in compact modules. |
| TJ range | –55 to +175 °C - Supports operation in under-hood environments including transmission control and battery disconnect units. |
Pinout & Package
Package: D-Pak (TO-252AA), surface-mount, single-ended heat sink interface with exposed drain pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (D) | Main current path output terminal | Connected to exposed metal tab - must be soldered to large copper pour for thermal and electrical conduction. |
| Source (S) | Reference node for gate drive and current return | Provides low-inductance return path; internal source bond wires contribute to 7.5 nH LS. |
| Gate (G) | Control input for channel modulation | High-impedance MOS gate requiring <20 V absolute max; 2.0–4.0 V threshold enables 3.3 V/5 V logic compatibility with appropriate drive. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low RDS(on) | 11.1 mΩ typ. at 10 VGS reduces conduction losses by >35% vs. legacy automotive MOSFETs in 42 A loads. |
| 175 °C junction rating | Enables operation in high-ambient zones (e.g., near exhaust, transmission) without derating below 100 °C case temperature. |
| Repetitive avalanche capability | Validated per Fig. 12a–12b and AN-1005 - allows safe operation in unclamped inductive switching without external snubbers. |
| AEC-Q101 qualified | Meets stress test requirements for automotive electronics including temperature cycling, HTRB, and ESD (HBM >2 kV). |
| Fast switching with low Qgd/Qg | 12 nC Qgd / 29 nC Qg ratio minimizes Miller effect, enabling stable 200–500 kHz operation with standard gate drivers. |
Applications
| Engine Control Unit (ECU) Fuel Injector Driver | Automotive HVAC Blower Motor Inverter |
|---|---|
Use Scenario: High-speed, high-current switching of 12 V fuel injectors with peak currents up to 36 A and 1 ms pulse widths. IC Role / Device Role / Timing Role: Primary power switch controlling injector coil energization/de-energization; handles repetitive avalanche during coil flyback. Use Value: 82 mJ tested EAS and 175 °C TJ ensure reliable operation across –40 to +150 °C ambient without snubber networks. | Use Scenario: 3-phase inverter stage driving brushed DC blower motors in climate control systems. IC Role / Device Role / Timing Role: Low-side switch in half-bridge configuration; operates at 20–100 kHz PWM with 42 A RMS current. Use Value: 11.1 mΩ RDS(on) limits conduction loss to <2 W at full load, enabling natural convection cooling on standard FR-4 PCB. |
| 12 V Battery Disconnect Switch | Start-Stop System Solenoid Driver |
Use Scenario: Solid-state replacement for mechanical relays in battery isolation circuits handling 40 A continuous load. IC Role / Device Role / Timing Role: Single-pole, normally-open power switch activated via microcontroller GPIO; requires low leakage and high surge tolerance. Use Value: 20 µA IDSS at 55 V and 240 A pulsed IDM support fail-safe disconnection during fault events. | Use Scenario: Driving high-inertia solenoids in start-stop systems with 100 ms activation pulses and 200 A inrush peaks. IC Role / Device Role / Timing Role: High-current gate driver output stage; sustains short-duration overloads without thermal runaway. Use Value: 1.38 °C/W RθJC and 110 W PD allow 200 A pulses with <10 °C junction rise when mounted to chassis ground plane. |
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 |
|---|---|---|---|
| STL220N5LF8AG | 55 V, 1.7 mΩ RDS(on), 220 A package-limited ID, PowerFLAT 8x8 | Higher current capacity but larger footprint; requires multi-layer PCB for thermal management | Preferred for new designs needing higher peak current headroom and board space for thermal pads |
| IRF3205PbF | 55 V, 8.0 mΩ RDS(on), 110 A ID, TO-220AB; not AEC-Q101 qualified | Lacks automotive qualification and repetitive avalanche validation; higher RθJA (62 °C/W) | Acceptable only for non-safety-critical 12 V industrial applications with active cooling |
Compared with STL220N5LF8AG and IRF3205PbF, AUIRFR2905ZTRL offers optimal balance of D-Pak manufacturability, AEC-Q101 compliance, and verified 82 mJ avalanche robustness-making it the preferred choice for cost-sensitive, space-constrained automotive power stages where qualification and reliability are mandatory.
Availability
AUIRFR2905ZTRL is available at Aetrix Electronics and suitable for engine control units, HVAC motor inverters, battery disconnect switches, and start-stop solenoid drivers requiring stable component supply across automotive production lifecycles.
Supply support for AUIRFR2905ZTRL 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 qualification infrastructure.
AUIRFR2905ZTRL belongs to the HEXFET® Automotive Power MOSFET product line, engineered specifically for high-reliability 12 V vehicle subsystems demanding AEC-Q101 compliance, extended temperature operation, and robust unclamped inductive switching capability.
FAQ
What is the maximum continuous drain current for AUIRFR2905ZTRL at 100 °C case temperature?
The maximum continuous drain current is 42 A at TC = 100 °C, limited by package thermal resistance-not silicon capability. This value is confirmed in the Absolute Maximum Ratings table and reflects safe operation with standard PCB mounting and still-air conditions.
Does AUIRFR2905ZTRL require a gate resistor for automotive PWM applications?
Yes-a gate resistor (typically 5–15 Ω) is required to control dV/dt and prevent oscillation during switching. The device's 29 nC Qg and 12 nC Qgd make it sensitive to ringing; Infineon recommends RG = 15 Ω in the datasheet's switching time test circuit (Fig. 18a).
Is the body diode of AUIRFR2905ZTRL suitable for freewheeling in synchronous rectification?
No-the body diode has 1.3 V forward voltage and 23–35 ns reverse recovery time, making it unsuitable for high-frequency synchronous rectification. It is designed for unclamped inductive flyback, not continuous conduction mode freewheeling.
How is AUIRFR2905ZTRL marked on the package for traceability?
The top-side marking is "AUIRFR2905Z" followed by date code and lot traceability characters. The "TRL" suffix in the orderable part number indicates tape-and-reel packaging (3000 pcs/reel); the physical device does not include "TRL" in its marking.
AUIRFR2905ZTRL 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:
- 42A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 14.5mOhm @ 36A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 44 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1380 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 110W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
AUIRFR2905ZTRL FAQ
1.How can I place an order for AUIRFR2905ZTRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRFR2905ZTRL 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 AUIRFR2905ZTRL reliable?
The price and inventory of AUIRFR2905ZTRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFR2905ZTRL is usually 5 days.
3.What payment methods are accepted for AUIRFR2905ZTRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFR2905ZTRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRFR2905ZTRL?
AUIRFR2905ZTRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRFR2905ZTRL 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 AUIRFR2905ZTRL?
For technical support, including AUIRFR2905ZTRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFR2905ZTRL requirements.
6.How does Aetrix verify that AUIRFR2905ZTRL is sourced from the original manufacturer or authorized distributors?
All AUIRFR2905ZTRL 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 AUIRFR2905ZTRL meets industry standards.
7.What is the process for return or replacement of AUIRFR2905ZTRL?
All AUIRFR2905ZTRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFR2905ZTRL, 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 AUIRFR2905ZTRL part is unused and in its original packaging.
Return procedure for AUIRFR2905ZTRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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