The **M3H61FDG-R** is a high-performance **N-Channel Enhancement Mode MOSFET** (Metal-Oxide-Semiconductor Field-Effect Transistor). It is primarily designed for power management applications where high efficiency and high current handling are required in a compact form factor. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical characteristics of the M3H61FDG-R: | Parameter | Symbol | Value (Typical/Max) | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 60V | | **Gate-Source Voltage** | $V_{GSS}$ | $\pm$20V | | **Continuous Drain Current** | $I_D$ | ~60A to 80A (Package dependent) | | **Static Drain-Source On-Resistance** | $R_{DS(on)}$ | ~6.0 m$\Omega$ @ $V_{GS}=10V$ | | **Total Gate Charge** | $Q_g$ | ~45 - 55 nC | | **Operating Temperature** | $T_j$ | -55°C to +150°C | | **Package Type** | - | PDFN 5x6 / DFN 5x6 | --- ### 2. Functional Features * **Low $R_{DS(on)}$:** The low resistance when the transistor is "on" minimizes power dissipation as heat, increasing overall system efficiency. * **High Speed Switching:** Designed for fast transition between states, which is critical for high-frequency DC-DC converters. * **Logic Level Compatibility:** It can often be driven by low-voltage gate signals, though $10V$ is optimal for minimum resistance. * **Trench Technology:** Utilizes advanced trench process technology to achieve high cell density. --- ### 3. Common Applications Due to its robust current handling and low thermal resistance, this MOSFET is commonly found in: 1. **Motor Drives:** Used in H-bridge circuits for controlling DC motors. 2. **DC-DC Converters:** Acts as a high-side or low-side switch in buck/boost regulators. 3. **Battery Protection:** Ideal for Battery Management Systems (BMS) to disconnect loads or chargers. 4. **Load Switching:** Used in power distribution networks to enable or disable specific rails. --- ### 4. Typical Pinout (PDFN 5x6) The device usually follows the standard DFN56 pin configuration: * **Pins 1, 2, 3:** Source (S) * **Pin 4:** Gate (G) * **Pins 5, 6, 7, 8 (and Thermal Pad):** Drain (D) ---