Infineon Technologies AUIRFR540ZTRL
- Part No.:
- AUIRFR540ZTRL
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
AUIRFR540ZTRL.pdf
- Description:
- MOSFET N-CH 100V 35A DPAK
- Quantity:
- Payment:

- Shipping:

Inventory:388
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Product details
Overview
AUIRFR540ZTRL from Infineon is an automotive-grade N-channel D-Pak Power MOSFET with 100 V VDS, 22.5 mΩ RDS(on) (typ.), 35 A continuous drain current at TC = 25°C, and 175°C maximum junction temperature. It serves as a high-efficiency switching element in low-power automotive loads including solenoid injection drivers and body control modules.
For engineers reviewing the AUIRFR540ZTRL datasheet, AUIRFR540ZTRL pinout, AUIRFR540ZTRL application, or AUIRFR540ZTRL equivalent, key selection criteria include its 1.64°C/W RθJC, 39 nC total gate charge, 75 mJ tested single-pulse avalanche energy, and AEC-Q101 qualification for under-hood reliability.
Technical Context
This HEXFET® device uses advanced silicon processing to minimize conduction loss while maintaining robust unclamped inductive switching capability. Its 175°C rated junction temperature and 75 mJ tested EAS support operation in thermally constrained automotive environments where transient overloads occur.
The MOSFET features fast switching (td(on) = 14 ns, tf = 34 ns), low output capacitance (Coss = 180 pF @ VDS = 25 V), and a body diode with 32–48 ns reverse recovery time - enabling efficient hard-switched DC-DC and load-switching topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - supports 12 V/24 V automotive systems with margin against load dump transients |
| RDS(on) | 22.5 mΩ (typ.) - enables <1 W conduction loss at 21 A, reducing heatsink requirements |
| ID (continuous) | 35 A @ TC = 25°C - suitable for high-current solenoid and motor drive stages |
| EAS (tested) | 75 mJ - validated avalanche robustness for inductive turn-off without external snubbers |
| Qg | 39 nC - balances gate drive power and switching speed in 100 kHz–500 kHz applications |
| TJ max | 175°C - meets AEC-Q101 thermal stress requirements for under-hood placement |
| RθJC | 1.64°C/W - allows direct heatsinking via D-Pak tab for compact thermal design |
Pinout & Package
Package: D-Pak (TO-252AA), surface-mount, isolated drain tab for thermal and electrical mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| G (Gate) | Control input | Receives 10 V logic-level drive; threshold voltage 2.0–4.0 V ensures compatibility with 3.3 V/5 V microcontrollers |
| D (Drain) | High-side switch node | Connected to load supply rail; tab is electrically tied to drain for low-inductance thermal path |
| S (Source) | Return path / reference | Common return for gate drive and load current; establishes local ground for driver ICs |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test standards including HTOL, TC, HTRB, and UHAST |
| Repetitive avalanche rated | Supports unclamped inductive switching up to 12 A at 100°C case temperature (Fig. 15) |
| Low Coss & Crss | 180 pF Coss and 100 pF Crss reduce switching losses and improve EMI behavior in hard-switched converters |
| Fast body diode | 32–48 ns trr and 40–60 nC Qrr enable synchronous rectification or freewheeling in buck and flyback topologies |
| 175°C TJ rating | Enables operation in engine bay environments without derating below full current at elevated ambient temperatures |
Applications
| Automatic Voltage Regulator (AVR) | Solenoid Injection |
|---|---|
Use Scenario: Regulating field current in alternators to maintain stable battery charging voltage across engine RPM range. IC Role / Device Role / Timing Role: High-side switch controlling excitation winding current with PWM duty cycle modulation. Use Value: 22.5 mΩ RDS(on) minimizes I²R loss during sustained 10–15 A field current, improving thermal stability. | Use Scenario: Driving fuel injector solenoids in gasoline direct injection (GDI) engines with precise pulse-width control. IC Role / Device Role / Timing Role: Low-inductance power switch delivering 35 A peak pulses with sub-50 ns fall time. Use Value: 34 ns fall time and 75 mJ avalanche rating prevent destructive voltage spikes during rapid de-energization. |
| Body Control Module (BCM) | Low-Power Automotive Loads |
Use Scenario: Controlling door lock actuators, window lift motors, and interior lighting relays in centralized vehicle body electronics. IC Role / Device Role / Timing Role: Load switch managing 5–20 A resistive/inductive loads with integrated diagnostics and short-circuit protection. Use Value: 175°C junction rating ensures reliable operation in sealed BCM enclosures with limited airflow. | Use Scenario: Powering auxiliary systems such as HVAC blower fans, seat heaters, and rear wiper motors in 12 V architectures. IC Role / Device Role / Timing Role: Robust main power switch handling intermittent 25–30 A surges with minimal voltage drop. Use Value: 28.5 mΩ max RDS(on) limits voltage drop to <0.85 V at 30 A, preserving load regulation under cold-cranking conditions. |
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 |
|---|---|---|---|
| STL100N10F7 | 100 V, 100 A, 7.5 mΩ RDS(on), PowerFLAT 5x6 package, no AEC-Q101 certification | Higher current capacity but lacks automotive qualification and has higher gate charge (65 nC) | Preferred for non-automotive industrial switching where higher current and lower RDS(on) outweigh qualification needs |
| IRF3205PbF | 55 V, 110 A, 8.0 mΩ RDS(on), TO-220 package, not AEC-Q101 qualified | Lower voltage rating limits use to 12 V only; larger footprint and higher thermal resistance (1.25°C/W) | Acceptable for cost-sensitive 12 V aftermarket modules where AEC-Q101 is not mandated |
Compared with STL100N10F7 and IRF3205PbF, AUIRFR540ZTRL trades off absolute current and RDS(on) for guaranteed automotive qualification, D-Pak thermal performance, and proven avalanche ruggedness - making it the sole choice for production-tier solenoid and BCM designs requiring AEC compliance.
Availability
AUIRFR540ZTRL is available at Aetrix Electronics and suitable for Automatic Voltage Regulator (AVR), Solenoid Injection, and Body Control Module (BCM) applications requiring stable component supply, long-term automotive lifecycle support, and traceable sourcing.
Supply support for AUIRFR540ZTRL 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.
AUIRFR540ZTRL belongs to the HEXFET® Automotive Power MOSFET product line, engineered specifically for AEC-Q101-compliant switching in engine control, chassis, and body electronics where reliability under thermal and electrical stress is critical.
FAQ
Is AUIRFR540ZTRL pin-compatible with standard D-Pak N-channel MOSFETs?
Yes - AUIRFR540ZTRL uses the industry-standard D-Pak (TO-252AA) footprint with Gate-Drain-Source pin order (G-D-S). Its mechanical dimensions, pad layout, and thermal tab alignment match JEDEC MO-238, enabling direct PCB replacement of other D-Pak MOSFETs without layout changes.
What is the maximum recommended gate drive voltage for AUIRFR540ZTRL?
The absolute maximum gate-to-source voltage is ±20 V, but the device is fully enhanced at VGS = 10 V and operates reliably within 8–15 V. Driving above 15 V provides no significant RDS(on) improvement and increases risk of gate oxide stress during transients.
Does AUIRFR540ZTRL require a gate resistor for automotive applications?
Yes - a 10–22 Ω series gate resistor is recommended to dampen ringing caused by PCB trace inductance and internal LS/LD (7.5 nH source, 4.5 nH drain). This prevents false turn-on during fast dv/dt events common in 12 V battery systems with load dump.
Can AUIRFR540ZTRL be used in synchronous rectification topologies?
It can be used, but not optimally - its body diode trr (32–48 ns) and Qrr (40–60 nC) are higher than dedicated synchronous rectifier MOSFETs. For high-frequency (>200 kHz) buck converters, a device with lower Qrr and faster trr would yield better efficiency.
AUIRFR540ZTRL 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:
- Active
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 35A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 28.5mOhm @ 21A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 50µA
- Gate Charge (Qg) (Max) @ Vgs:
- 59 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 1690 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 91W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DPAK
AUIRFR540ZTRL FAQ
1.How can I place an order for AUIRFR540ZTRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AUIRFR540ZTRL 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 AUIRFR540ZTRL reliable?
The price and inventory of AUIRFR540ZTRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AUIRFR540ZTRL is usually 5 days.
3.What payment methods are accepted for AUIRFR540ZTRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AUIRFR540ZTRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AUIRFR540ZTRL?
AUIRFR540ZTRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AUIRFR540ZTRL 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 AUIRFR540ZTRL?
For technical support, including AUIRFR540ZTRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AUIRFR540ZTRL requirements.
6.How does Aetrix verify that AUIRFR540ZTRL is sourced from the original manufacturer or authorized distributors?
All AUIRFR540ZTRL 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 AUIRFR540ZTRL meets industry standards.
7.What is the process for return or replacement of AUIRFR540ZTRL?
All AUIRFR540ZTRL units undergo pre-shipment inspection (PSI). If there is an issue with AUIRFR540ZTRL, 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 AUIRFR540ZTRL part is unused and in its original packaging.
Return procedure for AUIRFR540ZTRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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