## 2N7002KG-AE2-R: Technical Overview The **2N7002KG-AE2-R** is an N-channel enhancement mode Field Effect Transistor (MOSFET) designed for high-density mounting and low-voltage logic applications. It is widely used in power management and signal switching. --- ### 1. Key Technical Specifications Below are the critical electrical parameters for this specific part number: | Parameter | Symbol | Maximum Rating | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 60 V | | **Gate-Source Voltage** | $V_{GSS}$ | ±20 V | | **Continuous Drain Current** | $I_D$ | 300 mA | | **Pulsed Drain Current** | $I_{DM}$ | 800 mA | | **Power Dissipation** | $P_D$ | 350 mW | | **Operating Temperature** | $T_j$ | -55°C to +150°C | --- ### 2. Part Number Breakdown The suffixing in the part number provides specific information about the package and protection: * **2N7002**: The base industry-standard part number for N-Channel MOSFETs. * **K**: Indicates **ESD Protection**. This version includes a Zener diode between the gate and source to protect against static discharge. * **G**: Denotes **Halogen-Free** and Green materials (Environmentally friendly). * **AE2**: Refers to the **SOT-23-3** package type (3-pin Small Outline Transistor). * **R**: Indicates **Tape and Reel** packaging for automated assembly. --- ### 3. Core Features 1. **Low On-Resistance ($R_{DS(ON)}$):** Typically around $2.0\Omega$ to $3.0\Omega$ at $V_{GS} = 10V$, ensuring low power loss during switching. 2. **Logic Level Drive:** The threshold voltage ($V_{GS(th)}$) is between $1.0V$ and $2.5V$, allowing it to be driven directly by microcontrollers and TTL logic. 3. **High-Speed Switching:** Very low input capacitance ($C_{iss}$), making it suitable for high-frequency pulse applications. 4. **ESD Robustness:** The internal gate-source protection allows for easier handling during the manufacturing process. --- ### 4. Typical Applications The 2N7002KG is frequently found in: * **Level Shifting:** Converting signals between different logic voltages (e.g., 3.3V to 5V). * **Small Signal Switching:** Driving LEDs, relays, or small DC motors. * **Power Management:** Used in battery-powered portable equipment. * **Load Switches:** Controlling power to specific subsystems on a PCB. ---