Before working with this device in switching circuits or digital control systems, it is essential to understand the 2N7000 pinout, as proper identification of the Source, Gate, and Drain leads ensures safe installation and reliable performance. The 2N7000 is a commonly used logic-level N-channel MOSFET known for its high input impedance, low gate drive requirement, and excellent switching efficiency, making it ideal for microcontroller interfaces, small DC loads, and low-power electronic applications.

Introduction to 2N7000 N-Channel MOSFET
The 2N7000 is a popular N-channel enhancement-mode MOSFET designed for low-power switching, signal processing, and logic-level control circuits. With a 60V drain-source voltage rating and low gate threshold, it interfaces easily with TTL, CMOS, and microcontroller outputs such as Arduino, ESP32, STM32, and Raspberry Pi. Due to its compact TO-92 package and stable performance, it is widely used in prototyping, small automation projects, and general-purpose switching applications.
2N7000 N-Channel MOSFET

Pinout of 2N7000

Pin Configuration of 2N7000 Pinout
| Pin# | Pin Name |
|---|---|
| 1 | Source |
| 2 | Gate |
| 3 | Drain |
Understanding the 2N7000 Pinout Configuration
In the TO-92 package, the 2N7000 pinout follows an S-G-D arrangement:
- Source (left pin)
- Gate (middle pin)
- Drain (right pin)
Understanding the correct pin configuration prevents accidental shorts, incorrect wiring, and device failure during switching operations.
Key Features of 2N7000 MOSFET
- Logic-level gate operation
- Very high input impedance
- Excellent switching speed
- Low gate drive current requirement
- Suitable for microcontroller interfacing
- Reliable performance in compact TO-92 designs
2N7000 MOSFET Datasheet and Specifications
- Type: N-Channel Enhancement MOSFET
- Drain-Source Voltage (VDS): 60V
- Continuous Drain Current (ID): 200mA
- Pulsed Drain Current: 500mA
- Total Power Dissipation (Ptot): 400mW
- Gate Threshold Voltage (VGS(th)): 3V
- Operating and Storage Temperature Range: -55 to 150 °C
- Package Type: TO-92
- Pin Configuration: Source – Gate – Drain
Working Principle of 2N7000 MOSFET
The 2N7000 operates by using voltage applied to the Gate to control current flow from Drain to Source. When the gate voltage exceeds the threshold level, a conductive channel forms, allowing current to pass. Its high input impedance makes it extremely easy to drive with low-power logic outputs, and its fast switching characteristics are ideal for digital control, pulse circuits, and small MOSFET-based driver stages.
More Circuit Layouts








Applications of 2N7000 MOSFET
- Microcontroller-controlled switching
- Low-power LED drivers
- Relay driver pre-stages
- Digital logic switching
- Battery-powered circuits
- Level shifting interfaces
- Small DC motor or solenoid control
Equivalent and Alternative MOSFETs
- BS170
- 2N7002 (SMD version)
- BSS138 (low-voltage alternative)
- IRLML6344 (logic-level SMD MOSFET)
Frequently Asked Questions (FAQ)
Q1: Is the 2N7000 a logic-level MOSFET?
Yes, it can be driven directly from TTL and 3.3V/5V microcontrollers.
Q2: Can the 2N7000 drive a relay?
Only very small relays; otherwise use a stronger MOSFET or BJT driver stage.
Q3: What is the pinout of the 2N7000?
Source – Gate – Drain in TO-92 packaging.
Q4: Is 2N7000 suitable for PWM?
Yes, its fast switching speed makes it good for PWM control of low-power loads.
Conclusion
The 2N7000 is a versatile, efficient, and easy-to-drive N-channel MOSFET suitable for a wide range of low-power switching and digital control applications. Its logic-level gate operation, compact size, and reliable performance make it a preferred choice for microcontroller-based projects, automation circuits, and general-purpose electronic designs.
Datasheet & Pinout of 2N7000 N-Channel MOSFET
Click the following Button to download the datasheet of 2N7000 MOSFET :
More projects:
- Video Transmitter DIY Homemade FM Radio Transmitter
- Adjustable Power Supply DIY Battery Charger
- 12V-220V 500 Watt inverter DIY Homemade
- MPPT Solar Charge Controller DIY Homemade
- DIY LA4440 bass amplifier homemade
For more project and circuit diagrams, you can go through the Schematics in the main menu where you can find many interesting projects and circuit diagrams like audio amplifier circuits, voltage booster circuit, battery charger circuit and timer circuits etc., which are all beginner circuit projects. Feel free to check them out!

Thank you for visiting the article.




















