The **2N80G-TM3-R** is a specific type of N-Channel Power MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufactured by **UTC (Unisonic Technologies)**. It is designed primarily for high-voltage and high-speed switching applications. --- ## 1. Technical Specifications The part number encodes specific characteristics. Below is a breakdown of its primary electrical properties: | Feature | Specification | Description | | :--- | :--- | :--- | | **Transistor Type** | N-Channel | Requires a positive gate voltage to conduct. | | **Drain-Source Voltage ($V_{DSS}$)** | 800V | The maximum voltage it can handle across the Drain and Source. | | **Continuous Drain Current ($I_D$)** | 2.0A | The maximum continuous current the device can carry. | | **Gate-Source Voltage ($V_{GS}$)** | $\pm$30V | The maximum voltage range for the gate control signal. | | **On-Resistance ($R_{DS(on)}$)** | ~6.3$\Omega$ (Max) | Resistance when the transistor is fully turned on. | | **Package Type** | TO-251 (TM3) | Through-hole package, often referred to as "IPAK". | --- ## 2. Key Features * **High Voltage Capability:** With an 800V rating, it is suitable for power supplies connected to high-voltage AC mains. * **Fast Switching:** Optimized for high-frequency operation, reducing energy loss during state transitions. * **Low Gate Charge:** Requires minimal energy to trigger the gate, allowing for simpler driver circuits. * **Avalanche Ruggedness:** Designed to withstand brief voltage spikes beyond its breakdown voltage. --- ## 3. Part Number Breakdown The suffixing follows UTC’s nomenclature standard: * **2N80:** 2 Amps current rating / 800 Volts voltage rating. * **G:** Halogen-free and RoHS compliant (Green). * **TM3:** Refers to the **TO-251** (IPAK) package style. * **R:** Tape and Reel (though for TO-251, this often implies specific tube or box packaging depending on manufacturer updates). --- ## 4. Common Applications Due to its high voltage rating and relatively low current, this MOSFET is typically used in: 1. **Switch Mode Power Supplies (SMPS):** Used in the primary side of small power adapters. 2. **LED Lighting:** Constant current drivers for high-voltage LED strings. 3. **DC-DC Converters:** High-efficiency voltage step-down or step-up modules. 4. **Electronic Ballasts:** Used in fluorescent lighting control. ---