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Infineon Technologies IRFR2905ZTR
- Part No.:
- IRFR2905ZTR
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
IRFR2905ZTR.pdf
- Description:
- MOSFET N-CH 55V 42A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:9,895
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Product details
Overview
IRFR2905ZTR from Infineon Technologies (formerly International Rectifier) is an N-channel enhancement-mode automotive-grade HEXFET® Power MOSFET in D-Pak (TO-252) package, rated for 55 V VDS, 14.5 mΩ RDS(on) at VGS = 10 V, and 42 A continuous drain current at TC = 25°C. It features 175°C maximum junction temperature, fast switching (tr = 66 ns, tf = 35 ns), and rated repetitive avalanche capability - deployed in engine control modules, DC-DC converters, and motor drivers.
For engineers reviewing the IRFR2905ZTR datasheet, IRFR2905ZTR pinout, IRFR2905ZTR application, or IRFR2905ZTR equivalent, key selection criteria include its low RDS(on) at 10 V gate drive, robust 175°C thermal rating, unclamped inductive switching performance, and AEC-Q101 qualification status confirmed in official Infineon documentation.
Technical Context
This MOSFET employs advanced planar silicon processing to minimize on-resistance per die area while maintaining high avalanche ruggedness. Its body diode exhibits 1.3 V forward voltage at 36 A and 23–35 ns reverse recovery time (trr), enabling efficient synchronous rectification and freewheeling in hard-switched topologies.
The device operates with gate threshold voltage (VGS(th)) between 2.0 V and 4.0 V, total gate charge (Qg) of 29–44 nC, and Miller charge (Qgd) of 12 nC - supporting stable 10 V gate drive in automotive 12 V/24 V systems without requiring negative turn-off bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 55 V - Withstands peak transients up to 55 V in 12 V automotive battery systems with load dump margin. |
| RDS(on) | 14.5 mΩ max @ VGS = 10 V, TJ = 25°C - Enables <1.5 W conduction loss at 40 A, critical for thermally constrained ECUs. |
| ID (cont) | 42 A @ TC = 25°C - Supports high-current solenoid and pump drivers without external heatsinking at PCB mount. |
| TJ(max) | 175°C - Certified for under-hood operation per AEC-Q101, allowing sustained duty in engine bay environments. |
| EAS | 59 mJ (tested) - Rated for unclamped inductive switching in relay/motor control without snubber circuits. |
| Qg | 44 nC max - Determines gate driver power requirement; compatible with standard 1-A peak gate drivers (e.g., UCC27531). |
| tr/tf | 66 ns / 35 ns - Enables >100 kHz PWM operation in buck converters with minimal switching loss trade-off. |
Pinout & Package
IRFR2905ZTR uses the D-Pak (TO-252AA) surface-mount package with exposed drain pad for thermal conduction. The package measures 6.7 mm × 6.2 mm × 2.3 mm and is optimized for PCB copper pour heat spreading.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Source terminal (S) | Low-side return path; connects directly to ground plane; carries full load current and body diode reverse recovery current. |
| Pin 2 (Gate) | Control input (G) | High-impedance MOS gate; requires <44 nC charge for full enhancement; sensitive to ESD (±20 V absolute max). |
| Pin 3 (Drain) | Power output (D) | Exposed metal pad (Pin 3 equivalent); ties to high-side rail or inductive load; primary thermal path to PCB. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - Validated for temperature cycling, humidity, and mechanical shock per automotive reliability standards. |
| Repetitive avalanche rating | Rated for repeated unclamped inductive switching up to TJ(max) - Eliminates need for external avalanche protection in motor phase-legs. |
| Ultra-low RDS(on) | 11.1 mΩ typical @ 10 V - Reduces I²R losses by >30% vs. legacy 55 V MOSFETs, improving efficiency in 48 V mild-hybrid subsystems. |
| Fast body diode | trr = 23–35 ns, Qrr = 16–24 nC - Minimizes commutation loss and EMI in synchronous rectifiers and H-bridge freewheeling. |
| Thermal robustness | RθJC = 1.38 °C/W - Enables >50 W power dissipation with 2 oz copper + 20 cm² thermal pad, suitable for compact ECU designs. |
Applications
| Engine Control Unit (ECU) Fuel Injector Driver | Automotive DC-DC Converter Primary 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 N-channel switch controlling injector coil energization/de-energization with precise 1–5 ms pulse width. Use Value: 14.5 mΩ RDS(on) limits conduction loss to <2.5 W at 20 A peak, while 175°C rating ensures reliability during extended idle-stop operation. |
Use Scenario: Primary-side switch in 12 V to 5 V/3.3 V buck converter powering infotainment microcontrollers. IC Role / Device Role / Timing Role: Synchronous rectifier replacement in non-isolated buck stage operating at 250 kHz. Use Value: Fast 35 ns fall time and low Qgd enable clean zero-voltage switching transitions, reducing EMI and improving efficiency above 92%. |
| Electric Power Steering (EPS) Motor Phase Leg | Automotive HVAC Blower Motor Controller |
Use Scenario: Half-bridge leg in three-phase inverter driving 24 V EPS assist motor (≤500 W). IC Role / Device Role / Timing Role: High-current, high-reliability switching element handling bidirectional current and regenerative braking energy. Use Value: Repetitive avalanche rating allows safe clamping of inductive kickback during rapid PWM reversal, eliminating external TVS diodes. |
Use Scenario: PWM-controlled high-side switch regulating airflow in cabin HVAC blower assembly. IC Role / Device Role / Timing Role: Load switch interfacing microcontroller GPIO to 24 V blower motor with overcurrent and thermal shutdown support. Use Value: 42 A continuous rating supports 30 A surge during startup; 175°C junction rating prevents thermal shutdown during prolonged high-speed operation. |
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, 10.5 mΩ RDS(on), 130 A ID, PowerFLAT 5x6 package, no AEC-Q101 certification | Higher current capacity but larger footprint; lacks automotive qualification and avalanche rating | Select only for non-automotive industrial 24 V systems where space permits and qualification not required |
| ON Semiconductor NTMFS5C675NL | 60 V VDS, 11.5 mΩ RDS(on), 52 A ID, SO-8FL package, AEC-Q101 qualified, lower Qg (32 nC) | Smaller package, lower gate charge, but 1.38 °C/W RθJC not achievable due to smaller thermal pad | Prefer for space-constrained designs needing faster switching; verify thermal margin with 1 oz copper and limited copper area |
Compared with STL130N5LF6AG and NTMFS5C675NL, IRFR2905ZTR delivers optimal balance of automotive qualification, proven avalanche ruggedness, and thermal performance in D-Pak - making it preferred for under-hood applications where reliability under transient stress is non-negotiable.
Availability
IRFR2905ZTR is available at Aetrix Electronics and suitable for engine control units, electric power steering systems, and automotive DC-DC converters requiring stable component supply across multi-year vehicle production cycles.
Supply support for IRFR2905ZTR 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 aligned to ISO/TS 16949.
IRFR2905ZTR belongs to Infineon's automotive-qualified HEXFET® Power MOSFET product line, engineered specifically for high-reliability, high-temperature switching in engine, transmission, and chassis control systems.
FAQ
Is IRFR2905ZTR AEC-Q101 qualified?
Yes. IRFR2905ZTR is explicitly AEC-Q101 qualified per Infineon's official product change notice PCN-2019-002 and datasheet revision 1.5. Qualification includes temperature cycling (-40°C to +150°C), highly accelerated stress test (HAST), and mechanical shock testing - all performed on the final packaged device.
What is the maximum allowable gate-source voltage?
The absolute maximum VGS is ±20 V, as specified in the Absolute Maximum Ratings table. Operation beyond ±20 V risks permanent gate oxide damage. For reliable 10 V enhancement, gate drive circuits must clamp at ≤15 V and include series resistance to limit dv/dt-induced coupling during fast switching.
Can IRFR2905ZTR be used in parallel configurations?
Yes, but with strict layout and gate drive matching. The positive temperature coefficient of RDS(on) (see Fig. 10) enables inherent current sharing. Successful parallel operation requires matched gate resistors (<5% tolerance), symmetrical PCB trace lengths, and shared thermal vias to maintain ΔTJ < 5°C between devices.
Does IRFR2905ZTR include an integrated Schottky diode?
No. IRFR2905ZTR integrates a monolithic body diode formed by the MOSFET's p-n junction - not a discrete Schottky. This diode has VSD = 1.3 V at 36 A and trr = 23–35 ns. It is not optimized for ultra-fast switching like a Schottky but is rated for repetitive avalanche and soft recovery in motor control.
IRFR2905ZTR 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:
- 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)
IRFR2905ZTR FAQ
1.How can I place an order for IRFR2905ZTR through Aetrix?
Please submit a Request for Quotation (RFQ) for IRFR2905ZTR 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 IRFR2905ZTR reliable?
The price and inventory of IRFR2905ZTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR2905ZTR is usually 5 days.
3.What payment methods are accepted for IRFR2905ZTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR2905ZTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRFR2905ZTR?
IRFR2905ZTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRFR2905ZTR 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 IRFR2905ZTR?
For technical support, including IRFR2905ZTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR2905ZTR requirements.
6.How does Aetrix verify that IRFR2905ZTR is sourced from the original manufacturer or authorized distributors?
All IRFR2905ZTR 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 IRFR2905ZTR meets industry standards.
7.What is the process for return or replacement of IRFR2905ZTR?
All IRFR2905ZTR units undergo pre-shipment inspection (PSI). If there is an issue with IRFR2905ZTR, 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 IRFR2905ZTR part is unused and in its original packaging.
Return procedure for IRFR2905ZTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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