3N1012 N-channel Power MOSFET 100V 70A TO-263

3N1012 N-channel Power MOSFET 100V 70A TO-263 is a robust, high-current switching device specifically engineered for demanding power management applications. This N-channel MOSFET delivers an impressive 100V breakdown voltage and handles continuous drain current up to 70A, providing significant capacity for heavy loads. Consequently, design engineers widely use it in high-efficiency DC-DC conversion and motor control systems where fast switching speed and minimal conduction loss are essential. Housed in the surface-mount TO-263 (D2PAK) package, the 3N1012 efficiently dissipates heat, ensuring stable operation even under high-power conditions. Therefore, you can rely on this MOSFET to optimize power conversion and manage substantial current flow efficiently in your projects.

Key Features:

• High Current Capability: Handles a continuous drain current (I_D) of up to 70 A, suitable for powerful motor drives and high-power supplies.
• Low On-Resistance (R_DS(on)): Minimizes power loss and heat generation during the ‘on’ state, thereby improving overall system efficiency.
• Fast Switching Speed: Optimally designed for high-frequency PWM applications, enabling rapid turn-on and turn-off times.
• High Breakdown Voltage: Offers a Drain-Source Breakdown Voltage (V_DSS) of 100 V, providing ample margin for 48 V and 60 V systems.
• Surface Mount Package: The TO-263 (D2PAK) package facilitates efficient heat transfer to the PCB copper plane, enhancing thermal management.

Technical Specifications:

• Drain-Source Voltage (V_DSS): 100 V
• Continuous Drain Current (I_D): 70 A (@ T_C = 25°C)
• Gate-Source Voltage (V_GS): ±20 V
• Static Drain-Source On-Resistance (R_DS(on)): Typically ≤ 15 mΩ (@ V_GS = 10 V)
• Total Gate Charge (Q_g): Typically ≈ 70 nC
• Maximum Power Dissipation (P_D): 300 W (@ T_C = 25°C)
• Junction Temperature (T_J): −55°C to +150°C

Mechanical Specifications:

• Package Style: TO-263 (D2PAK), Surface Mount Device (SMD)
• Mounting: Solder to PCB pads; large tab serves as the Drain connection and thermal interface.
• Thermal Resistance (R_θJC): Low junction-to-case thermal resistance (typically 0.5 °C/W).
• Moisture Sensitivity Level (MSL): Suitable for standard industrial reflow processes.

Dimensions:

• Body Length: ≈ 10.16 mm
• Body Width: ≈ 9.91 mm
• Pad Length: ≈ 8.89 mm
• Lead Pitch: ≈ 2.54 mm
• Total Height (mounted): ≈ 4.40 mm

Pinout and Wiring:

• Pin 1 (Gate – G): Controls the conductivity of the channel. Connect to the PWM driver output (requires 10 V drive for specified R_DS(on)).
• Pin 2 (Drain – D): The current output terminal. Furthermore, this pin is internally connected to the large metal tab for heat sinking. Connect to the positive power supply or load input.
• Pin 3 (Source – S): The current input/return terminal. Connect to the circuit ground or low-side of the load.
• Wiring Note: Keep gate drive traces short and use a dedicated low-ESR ceramic capacitor near the Drain/Source connections to minimize switching noise and voltage spikes.

Datasheet Reference:

• Download 3N1012 N-Channel Power MOSFET Datasheet

Commonly Used in:

• Motor Controllers: It forms the crucial switching element in brushed and brushless DC (BLDC) motor driver stages.
• Switching Power Supplies: Utilized in the primary side of DC-DC converters, including buck, boost, and bridge topologies.
• Battery Management Systems (BMS): Employed for high-side or low-side battery protection and charging circuits.

Applications:

• High-Power LED Lighting: Drives high-current LED arrays in industrial and automotive lighting systems.
• Automotive Electronics: Controls solenoid valves, fuel injectors, and power distribution modules.
• Uninterruptible Power Supplies (UPS): Acts as the inverter switch to convert DC battery power to AC output power.
• Robotics: Powers actuator and locomotion systems requiring high torque and fast response times.

Equivalent Models:

• IRLZ44N (Infineon/Vishay): A popular 55V, 47A N-channel MOSFET, which serves a similar switching function in lower voltage applications.
• FDP8870 (ON Semiconductor): Offers comparable R_DS(on) and current handling in a different package (TO-220), however, the 3N1012’s surface mount form factor is often preferred.
• AOT470 (Alpha & Omega Semiconductor): A closely matched 100V device with similar specifications, commonly used as a functional replacement.

Package Includes:

• 1 x 3N1012 N-channel Power MOSFET 100V 70A TO-263