STP75NF75 80A/75V N CHANNEL MOSFET
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The STP75NF75 is a high-performance, Nchannel MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufactured by STMicroelectronics, primarily designed for use in power switching applications.
Key Specifications and Ratings
The part number STP75NF75 directly indicates its key characteristics:
75A (Amps): The approximate continuous drain current (I_D) the device can handle. The official datasheet rating is 80A at 25C.
75V (Volts): The maximum drain-to-source voltage (V_DS) the device can safely block.
| Parameter | Value | Description |
| Type | N-Channel MOSFET | A logic gate must apply a positive voltage to the gate to turn it on (switch it to the "on" state). |
| Continuous Drain Current (I_D) | 80A (at 25C) | The maximum current that can flow from drain to source. |
| Drain-Source Voltage (V_DS) | 75V | The maximum voltage the transistor can withstand when off. |
| On-Resistance (R_DSon) | Typically less than 0.0115ohms) | This extremely low resistance minimizes power loss and heat generation when the transistor is fully "on." |
| Package | TO-220 | A standard through-hole package for high-power applications, designed to be mounted on a heatsink. |
Common Applications
The combination of high current capacity, low on-resistance, and relatively low voltage rating makes the STP75NF75 suitable for applications where efficiency in power switching is critical:
Motor Control: Driving DC motors, particularly in robotics and electric vehicles.
High-Current DC - DC Converters: Used in power supplies and voltage regulation modules.
Switching Power Supplies (SMPS): Acting as the main switching element.
Lighting Systems: High-power LED drivers and pulse-width modulation (PWM) dimming circuits.