FTP03N03N MOSFET 30V 150A N-Channel Power MOSFET | 03N03N MOSFET | 03N03 MOSFET.
The FTP03N03N MOSFET is a high-current N-Channel Power MOSFET designed for low-voltage, high-current switching applications. It is available in a TO-220 package and is commonly used in inverter circuits, UPS systems, DC motor controllers, automotive electronics, power supplies and other high-current switching applications.
The FTP03N03N is specified with a 30V Drain-Source voltage rating, up to 150A continuous drain current and 100W maximum power dissipation. The device also features very low drain-source ON resistance, with a maximum value of approximately 3mΩ, helping to reduce conduction losses when properly driven.
Key Features
- Part Number: FTP03N03N
- Common Search Name: 03N03 MOSFET
- MOSFET Type: N-Channel
- Operating Mode: Enhancement Mode
- Drain-Source Voltage (VDS): 30V
- Continuous Drain Current (ID): Up to 150A*
- Gate-Source Voltage (VGS): ±20V maximum
- Maximum Power Dissipation: 100W
- RDS(ON): ≤ 3mΩ
- Package: TO-220
- Number of Pins: 3
- Junction Temperature: Up to 150°C
- Fast Switching: Yes
- Avalanche Tested: Yes
- Application: Low-voltage, high-current switching
*The maximum current rating depends on operating conditions, case temperature, PCB/heat-sink arrangement and the manufacturer’s specified test conditions.
FTP03N03N MOSFET Pinout
When viewing the front/marking side of the TO-220 package with the leads pointing downward, the commonly specified pin arrangement is:
- Pin 1 – Gate (G)
- Pin 2 – Drain (D)
- Pin 3 – Source (S)
- Metal Tab – Drain (D)

Always verify the pin configuration against the datasheet of the exact device before installation, particularly when replacing a MOSFET from another manufacturer.
FTP03N03N MOSFET Watt Equivalent
The FTP03N03N is commonly listed with a maximum power dissipation of 100W. However, 100W should not be interpreted as a direct replacement requirement when selecting an equivalent MOSFET.
For a replacement, check the following specifications:
- VDS rating should be equal to or higher than 30V.
- Drain current rating should be suitable for the application.
- RDS(ON) should be equal to or lower than the original where possible.
- Gate-drive voltage and gate charge should be compatible.
- Package and pinout must match.
- Switching characteristics should be suitable for the circuit.
- Thermal performance must be adequate.
Important: There is no single universal “watt equivalent” for FTP03N03N. A MOSFET with a similar watt rating may still be unsuitable if its voltage, current, RDS(ON), gate characteristics or pinout are different.
FTP03N03N MOSFET Applications
FTP03N03N can be used in various low-voltage power electronics applications, including:
- 12V inverter circuits
- UPS systems
- DC-AC inverter boards
- Battery-powered equipment
- DC motor controllers
- Automotive electronics
- Power management circuits
- DC switching applications
- Synchronous rectification
- Class-D amplifier applications
- Low-voltage high-current power supplies
The datasheet information specifically identifies applications such as automotive/telecom equipment, DC motor control, Class-D amplifiers and UPS systems.
FTP03N03N New and Original MOSFET
ELCMART offers FTP03N03N MOSFET options for electronic repair and replacement requirements. Buyers should select the required condition—new/original or tested/used stock—according to the product listing.
For repair work, always inspect the MOSFET marking, package condition and electrical characteristics before installation. Do not assume that a visually similar TO-220 MOSFET is electrically interchangeable.
FTP03N03N MOSFET Price
The FTP03N03N MOSFET price can vary depending on quantity, condition, source and whether the device is new or tested stock. Online Indian listings show different prices for individual devices and multi-piece packs, so the current ELCMART product listing should be checked for the latest selling price.
Why Buy FTP03N03N MOSFET from ELCMART?
- Suitable for inverter and UPS repair applications
- High-current N-Channel MOSFET
- TO-220 package
- Low RDS(ON) specification
- Useful for electronic repair and replacement
- Suitable for various 12V/low-voltage switching circuits
- Product options available according to stock condition
- Convenient online ordering from ELCMART
Technical Specification Table
| Specification | Details |
|---|---|
| Part Number | FTP03N03N |
| Other Search Term | 03N03 MOSFET |
| Type | N-Channel Power MOSFET |
| VDS | 30V |
| ID | Up to 150A |
| VGS | ±20V Maximum |
| RDS(ON) | ≤ 3mΩ |
| Power Dissipation | 100W |
| Package | TO-220 |
| Pins | 3 |
| Pinout | G-D-S |
| Junction Temperature | 150°C |
| Switching | Fast Switching |
| Application | Inverter, UPS, Motor Control, Power Supply |
Product Summary
FTP03N03N is a 30V high-current N-Channel Power MOSFET in a TO-220 package, specified for up to 150A drain current, 100W power dissipation and low RDS(ON). It is widely suitable for low-voltage switching applications such as inverter, UPS, motor control and power electronics repair. Buy FTP03N03N MOSFET online from ELCMART for your electronic repair and replacement requirements.


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