Infineon Technologies IRF3205PBF
- Part No.:
- IRF3205PBF
- Manufacturer:
- Infineon Technologies
- Category:
- N-Channel MOSFETs
- Package:
- TO-220-3
- Description:
- MOSFET N-CH 55V 75A TO220AB
- Quantity:
-
Unit Price:$0
Ext Price:$0
- Payment:
-
- Shipping:
-
IRF3205PBF Information
- Specifications
- Product Details
- Comparison
- Tags
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- HEXFET®
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- FET Type:
- N-Channel
- Technology:
- MOSFET (Metal Oxide)
- Drain to Source Voltage (Vdss):
- 55 V
- Current - Continuous Drain (Id) @ 25°C:
- 75A (Tc)
- Drive Voltage (Max Rds On, Min Rds On):
- 10V
- Rds On (Max) @ Id, Vgs:
- 6.5mOhm @ 66A, 10V
- Vgs(th) (Max) @ Id:
- 4V @ 250µA
- Gate Charge (Qg) (Max) @ Vgs:
- 110 nC @ 10 V
- Vgs (Max):
- ±20V
- Input Capacitance (Ciss) (Max) @ Vds:
- 3450 pF @ 25 V
- FET Feature:
- -
- Power Dissipation (Max):
- 170W (Tc)
- Operating Temperature:
- -55°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AB
IRF3205PBF - 55V/110A N-Channel HEXFET Power MOSFET from Infineon
The IRF3205PBF is Infineon's N-Channel HEXFET power MOSFET in a TO-220AB package. 55V drain-source, 110A continuous drain current, 8mΩ RDS(on) at 10V gate drive. That is one of the lowest on-resistances you will find in a TO-220 at this voltage class.
This is not a logic-level MOSFET. It needs 10V gate drive for full enhancement - the threshold is 2V–4V, but the RDS(on) is only guaranteed at VGS=10V. You need a gate driver IC or a 12V rail.
Position in the product line: This is the high-current workhorse. It is the bigger sibling of the IRFZ44NPBF (49A/17.5mΩ) and the standard-threshold counterpart to the IRLZ44NPBF (47A/22mΩ, logic-level).
What Are the Specifications of IRF3205PBF?
| Parameter | Value | Notes |
|---|---|---|
| Vdss | 55 V | Maximum rating |
| Id continuous @ 25°C | 110 A | - |
| Id continuous @ 100°C | 78 A | Real-world limit |
| RDS(on) @ VGS=10V | 8 mΩ (max) | Guaranteed at 10V only |
| Vgs(th) | 2.0V – 4.0V | Standard threshold |
| Qg | 146 nC (typ) @ 10V | Needs gate driver |
| Ciss | 3247 pF | - |
| Pd | 200 W | Requires substantial heatsink |
| Package | TO-220AB | 3-pin through-hole |
What Is IRF3205PBF Used For?
DC-AC Inverters
In a 50/60Hz H-bridge inverter, four IRF3205PBFs handle the switching. The 8mΩ RDS(on) means each transistor dissipates about 8W at 32A RMS.
Motor Control (Brushed DC)
For 12V–24V DC motors up to about 2kW, works as the low-side switch. Needs a gate driver (TC4427, IR2104) and freewheeling diode.
High-Current Load Switching
Power distribution, relay replacement, heating element control - anywhere you need to switch 30A–80A DC efficiently.
IRF3205PBF Cross-Reference and Alternatives
| Part | Manufacturer | Vds | Id | RDS(on) | Notes |
|---|---|---|---|---|---|
| IRF3205PBF | Infineon | 55V | 110A | 8mΩ | Reference |
| AUIRF3205Z | Infineon | 55V | 110A | 8mΩ | Automotive AEC-Q101 |
| STP80NF55-06 | STMicro | 55V | 80A | 6mΩ | Lower RDS(on) |
| IRF2807PBF | Infineon | 75V | 82A | 13mΩ | Higher voltage |
| IRFZ44NPBF | Infineon | 55V | 49A | 17.5mΩ | Lower current |
| IRLZ44NPBF | Infineon | 55V | 47A | 22mΩ | Logic-level |
Critical substitution warning:
- IRF3205 vs IRFZ44NPBF: IRF3205 is the upgrade (110A vs 49A). Both need 10V gate drive. Many engineers overspec and use IRF3205 when IRFZ44N would suffice.
- IRF3205 vs IRLZ44NPBF: Different gate drive. IRF3205 needs 10V. IRLZ44NPBF is logic-level (5V). Not interchangeable without circuit redesign. This is the most common substitution mistake.
Frequently Asked Questions About IRF3205PBF
Q1: Can I drive IRF3205PBF directly from an Arduino or ESP32?
A: No. It requires 10V gate drive. A 5V GPIO leaves it in the linear region, causing overheating. For direct MCU drive, use IRLZ44NPBF instead.
Q2: What is the difference between IRF3205PBF and IRFZ44NPBF?
A: IRF3205PBF: 110A/8mΩ/146nC. IRFZ44NPBF: 49A/17.5mΩ/42nC. Both need 10V. IRF3205 needs a stronger gate driver.
Q3: What is the difference between IRF3205PBF and IRLZ44NPBF?
A: Gate drive. IRF3205 needs 10V. IRLZ44NPBF is logic-level (5V). Not interchangeable - the most common mistake.
Q4: Does IRF3205PBF need a heatsink?
A: Yes. Without: 5-8A safe. With clip-on: 20-30A. For 50A+: forced air and large extruded heatsink.
Q5: What is the maximum switching frequency?
A: 20-50kHz, limited by 146nC gate charge and 3247pF input capacitance.
Q6: What causes IRF3205PBF to fail?
A: Inadequate gate drive (VGS under 10V), shoot-through in H-bridge, voltage spikes exceeding 55V, inadequate heatsinking.
Q7: Is IRF3205PBF suitable for 24V systems?
A: Yes, 55V gives 2.3× margin. For 48V systems, use IRF2807PBF (75V).
Q8: Is the TO-220 tab connected to drain?
A: Yes. Use a thermal pad and shoulder washer for heatsink isolation.
Pricing & Availability
| Quantity | Price per unit (USD) |
|---|---|
| 1+ | $1.65 |
| 10+ | $1.20 |
| 50+ | $0.85 |
| 100+ | $0.75 |
| 500+ | $0.65 |
| 1000+ | $0.55 |
| 5000+ | $0.48 |
Lead time: 3-5 business days. Bulk orders within 1 week.
| Image |
|
| Part Number | IRF3205PBF |
| Manufacturer | Infineon Technologies |
| Series | HEXFET® |
| Package/Case | TO-220-3 |
| Packaging | Tube |
| Product Status | Discontinued at Digi-Key |
| FET Type | N-Channel |
| Technology | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 55 V |
| Current - Continuous Drain (Id) @ 25°C | 75A (Tc) |
| Drive Voltage (Max Rds On, Min Rds On) | 10V |
| Rds On (Max) @ Id, Vgs | 6.5mOhm @ 66A, 10V |
| Vgs(th) (Max) @ Id | 4V @ 250µA |
| Gate Charge (Qg) (Max) @ Vgs | 110 nC @ 10 V |
| Vgs (Max) | ±20V |
| Input Capacitance (Ciss) (Max) @ Vds | 3450 pF @ 25 V |
| FET Feature | - |
| Power Dissipation (Max) | 170W (Tc) |
| Operating Temperature | -55°C ~ 175°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Supplier Device Package | TO-220AB |
User Guide
- Purchase & Inquiry
- Package
- Shipping Information
- Customer Review
You may place an order without registering to IC-MAX.COM
We strongly suggest you sign in before purchasing as you can track your order in real time.
For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and wire transfer.
RFQ (Request for Quotations)
It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.
1. You'll receive an order information email in your inbox. (Please remember to check the spam folder if you didn't hear from us).
2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.
-
- Step1：Prepare product
-
- Step2：Vacuum packaging
-
- Step3：Anti-static bag
-
- Step4：Individual package
-
- Step5：Packaging box
-
- Step6：Barcode shipping label
Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)
The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and country.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
Delivery TimeOnce the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
The following are some common countries' logistic time.
- Hot Sale
- Related Categories
- Include Parts
- Popular Search
The following parts include "IRF3205PBF" in Silicon Labs IRF3205PBF.
- Part Number
- Manufacturer
- Package
- Description
- BSZ180P03NS3EGATMA1 Infineon Technologies TO-220-3 MOSFET N-CH 55V 75A TO220AB
- SIRA14DP-T1-GE3 Vishay Siliconix TO-220-3 MOSFET N-CH 55V 75A TO220AB
- AO4419 Alpha & Omega Semiconductor Inc. TO-220-3 MOSFET N-CH 55V 75A TO220AB
- SISA14BDN-T1-GE3 Vishay Siliconix TO-220-3 MOSFET N-CH 55V 75A TO220AB
- PSMN9R5-30YLC,115 Nexperia USA Inc. TO-220-3 MOSFET N-CH 55V 75A TO220AB
- BUK9Y21-40E,115 Nexperia USA Inc. TO-220-3 MOSFET N-CH 55V 75A TO220AB
- RTQ035N03HZGTR Rohm Semiconductor TO-220-3 MOSFET N-CH 55V 75A TO220AB
- FDMS7680 onsemi TO-220-3 MOSFET N-CH 55V 75A TO220AB
- RQ3E180BNTB Rohm Semiconductor TO-220-3 MOSFET N-CH 55V 75A TO220AB
- STL6N2VH5 STMicroelectronics TO-220-3 MOSFET N-CH 55V 75A TO220AB
The following parts are popular search parts in Test and Measurement.
Inventory:6
Please send an inquiry. Send us your inquiry, and we will respond immediately.
- 1500+ Daily average RFQ Volume
- 20,000.000 Standard Product Unit
- 1800+ Worldwide Manufacturers
- 15,000+ In-stock Warehouse
