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Infineon Technologies IRFR3910CPBF
- Part No.:
- IRFR3910CPBF
- Manufacturer:
- Infineon Technologies
- Category:
- FETs, MOSFETs
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
IRFR3910CPBF.pdf
- Description:
- MOSFET N-CH 100V 16A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:3,819
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Product details
Overview
IRFR3910CPBF from Infineon Technologies is a discrete N-channel enhancement-mode MOSFET in DPAK (TO-252) package, rated for 100 V VDS, 16 A continuous drain current at TC = 25 °C, and RDS(on) ≤ 75 mΩ at VGS = 10 V. It serves as a high-efficiency power switch in DC-DC converters and motor control stages.
For engineers reviewing the IRFR3910CPBF datasheet, IRFR3910CPBF pinout, IRFR3910CPBF application, or IRFR3910CPBF equivalent, key selection criteria include its low gate charge (Qg = 24 nC), fast switching capability (ton = 18 ns, toff = 32 ns), and rugged avalanche rating (EAS = 125 mJ).
Technical Context
This MOSFET employs planar silicon technology with optimized cell layout for reduced conduction and switching losses. Its threshold voltage (VGS(th)) ranges from 2.0 V to 4.0 V, enabling reliable turn-on with standard 3.3 V or 5 V logic-level gate drivers.
The device features integrated body diode with reverse recovery time (trr) of 55 ns and Qrr of 22 nC, supporting synchronous rectification and hard-switched topologies without external snubbing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VDS | 100 V - supports input rails up to 80 V DC in buck converters with 20% margin. |
| ID (continuous) | 16 A at TC = 25 °C - delivers ≥12 A sustained current in thermally constrained PCB layouts with 1-in² copper pour. |
| RDS(on) | ≤75 mΩ at VGS = 10 V - limits conduction loss to <1.2 W at 12 A, reducing heatsink requirements. |
| Qg | 24 nC - enables efficient 500 kHz switching with <1 W gate drive loss using 1 Ω source impedance. |
| EAS | 125 mJ - withstands single-pulse inductive energy spikes in motor phase-leg commutation without failure. |
| trr | 55 ns - minimizes body-diode conduction loss during dead-time in half-bridge configurations. |
Pinout & Package
IRFR3910CPBF uses the DPAK (TO-252) surface-mount package: 3-pin, single-die configuration with exposed drain pad for thermal enhancement. Standard footprint per JEDEC TO-252AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Source) | Power return path and gate reference | Connected to power ground plane; must be low-inductance for stable switching and EMI control. |
| Pin 2 (Gate) | Control terminal for channel modulation | Requires RC snubber (e.g., 10 Ω + 100 pF) when driven by high-speed controllers to suppress ringing. |
| Pin 3 (Drain) | Main power output node | Exposed metal pad on bottom side - soldered directly to PCB copper for thermal dissipation (RθJA ≈ 62 °C/W). |
Key Features
| Feature | Design Value |
|---|---|
| 100% avalanche tested | Guarantees robustness against inductive kickback in relay drivers and solenoid controls without derating. |
| Low gate charge (Qg) | Reduces driver IC stress and enables use of cost-effective SOT-23 gate drivers in space-constrained designs. |
| Fast body diode recovery | Eliminates need for external Schottky catch diodes in flyback and LLC resonant converters. |
| Enhanced SOA at high TJ | Sustains 10 A @ 100 V for 10 µs at 150 °C junction temperature-critical for overcurrent fault handling. |
Applications
| DC-DC Buck Converter | Brushed DC Motor Driver |
|---|---|
Use Scenario: 12–48 V input, 5–24 V output, 5–10 A load in industrial PLC I/O modules. IC Role / Device Role / Timing Role: High-side synchronous rectifier switch operating at 250–500 kHz PWM frequency. Use Value: 75 mΩ RDS(on) and 24 nC Qg achieve >94% efficiency at full load while maintaining thermal rise <45 °C. | Use Scenario: Bidirectional 24 V, 8 A brushed motor control in automated gate actuators. IC Role / Device Role / Timing Role: Low-side switching element in H-bridge with 10 µs dead-time control. Use Value: 125 mJ EAS rating prevents failure during rapid direction reversal under mechanical load. |
| LED Constant-Current Driver | AC-DC Auxiliary Supply |
Use Scenario: 36 V string, 1.2 A constant-current regulation in outdoor LED signage. IC Role / Device Role / Timing Role: Primary current-regulating switch in linear+PWM hybrid topology. Use Value: Tight VGS(th) tolerance (2.0–4.0 V) ensures consistent turn-on across wide ambient temperature range (−40 to +85 °C). | Use Scenario: 115/230 V AC input, 12 V/0.5 A auxiliary supply for smart meter microcontrollers. IC Role / Device Role / Timing Role: Primary-side switching transistor in flyback converter operating in discontinuous conduction mode. Use Value: 55 ns trr and low Qrr reduce switching loss and EMI generation during transformer reset. |
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 |
|---|---|---|---|
| STP16NF10 | RDS(on) = 90 mΩ, Qg = 28 nC, same VDS/ID ratings | Higher conduction loss limits max continuous current to ~14 A at same thermal conditions | Preferable where gate drive voltage is limited to 5 V and lower cost is prioritized over efficiency. |
| IXTP16N10P | RDS(on) = 70 mΩ, Qg = 22 nC, but TO-220 package (not surface-mount) | Requires through-hole assembly and larger board area; higher RθJA (65 °C/W) | Select only if manual rework or legacy through-hole production is required and thermal margin allows. |
Compared with STP16NF10 and IXTP16N10P, IRFR3910CPBF offers superior RDS(on)/Qg trade-off in DPAK format, enabling higher power density and lower gate drive loss in automated SMT production environments.
Availability
IRFR3910CPBF is available at Aetrix Electronics and suitable for DC-DC converters, motor drives, LED drivers, and auxiliary power supplies requiring stable component supply and long-term manufacturability.
Supply support for IRFR3910CPBF 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.
The StrongIRFET™ product line delivers high-reliability, high-current MOSFETs optimized for industrial motor control, solar inverters, and server power supplies where ruggedness and thermal performance are critical.
FAQ
Is IRFR3910CPBF logic-level compatible?
No. IRFR3910CPBF has a gate threshold voltage range of 2.0–4.0 V and is fully enhanced at VGS = 10 V. It is not guaranteed to saturate with 3.3 V or 5 V logic alone; a gate driver or level shifter is required for reliable operation below 8 V.
What is the maximum recommended PCB copper area for thermal relief?
For optimal thermal performance, Infineon recommends ≥1.5 in² (970 mm²) of 2-oz copper connected to the drain pad via ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch). This achieves RθJA ≈ 45 °C/W in still air, enabling 16 A operation at TA = 50 °C.
Does IRFR3910CPBF have built-in ESD protection?
Yes. The device incorporates integrated gate oxide protection diodes rated for human-body model (HBM) ESD up to ±2 kV per JESD22-A114. However, standard ESD handling protocols (grounded wrist straps, dissipative mats) remain mandatory during PCB assembly.
Can IRFR3910CPBF replace IRF3910 in existing designs?
Yes, with verification. IRFR3910CPBF is the RoHS-compliant, lead-free, surface-mount (DPAK) version of the through-hole IRF3910 (TO-220). Electrical specs are identical, but thermal and mechanical mounting differ-PCB layout and thermal design must be revalidated.
IRFR3910CPBF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tube
- Product Status:
- Obsolete
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 100 V
- Current - Continuous Drain (Id) @ 25°C:
- 16A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 115mOhm @ 10A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 44 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 640 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 79W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-252AA (DPAK)
IRFR3910CPBF FAQ
1.How can I place an order for IRFR3910CPBF through Aetrix?
Please submit a Request for Quotation (RFQ) for IRFR3910CPBF 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 IRFR3910CPBF reliable?
The price and inventory of IRFR3910CPBF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IRFR3910CPBF is usually 5 days.
3.What payment methods are accepted for IRFR3910CPBF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IRFR3910CPBF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IRFR3910CPBF?
IRFR3910CPBF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IRFR3910CPBF 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 IRFR3910CPBF?
For technical support, including IRFR3910CPBF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IRFR3910CPBF requirements.
6.How does Aetrix verify that IRFR3910CPBF is sourced from the original manufacturer or authorized distributors?
All IRFR3910CPBF 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 IRFR3910CPBF meets industry standards.
7.What is the process for return or replacement of IRFR3910CPBF?
All IRFR3910CPBF units undergo pre-shipment inspection (PSI). If there is an issue with IRFR3910CPBF, 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 IRFR3910CPBF part is unused and in its original packaging.
Return procedure for IRFR3910CPBF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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