The **7N65G-TQ2-R** is a specific part number for a High Voltage Power MOSFET. Below is a detailed breakdown of its specifications, naming convention, and technical characteristics. ### 1. General Overview The 7N65 series is a N-Channel enhancement mode power field-effect transistor (MOSFET) produced using advanced planar stripe DMOS technology. It is designed to minimize on-state resistance and provide superior switching performance. --- ### 2. Technical Specifications The following table highlights the core electrical characteristics: | Parameter | Symbol | Typical Value | | :--- | :--- | :--- | | **Drain-Source Voltage** | $V_{DSS}$ | 650 V | | **Continuous Drain Current** | $I_D$ | 7.0 A | | **Pulsed Drain Current** | $I_{DM}$ | 28 A | | **Static Drain-Source On-Resistance** | $R_{DS(ON)}$ | 1.2 $\Omega$ (Max @ $V_{GS}=10V$) | | **Gate-Source Voltage** | $V_{GSS}$ | $\pm$ 30 V | | **Total Gate Charge** | $Q_g$ | 28 nC | --- ### 3. Part Number Decoder The suffix and prefix provide information about the manufacturing and packaging: * **7**: Represents the current rating (approx. 7 Amperes). * **N65**: Represents the polarity (N-Channel) and Voltage rating (650V). * **G**: Usually indicates **Halogen-Free** or "Green" compliance. * **TQ2**: Refers to the Package Type, typically **TO-263** (D2PAK), which is a surface-mount package. * **R**: Indicates the packing method, usually **Tape & Reel**. --- ### 4. Key Features * **Low Gate Charge:** Allows for fast switching speeds and reduces drive power requirements. * **Low $C_{rss}$ (Reverse Transfer Capacitance):** Improves efficiency in high-frequency applications. * **Avalanche Energy Rated:** 100% tested for avalanche ruggedness, ensuring stability against voltage spikes. * **High Speed Switching:** Optimized for SMPS (Switching Mode Power Supplies). --- ### 5. Common Applications This MOSFET is primarily used in high-efficiency switch-mode power supplies and electronic ballasts. * **PFC (Power Factor Correction):** Used in the input stages of power supplies. * **AC/DC Adapters:** Common in laptop chargers and industrial power bricks. * **LED Drivers:** Used for high-voltage DC conversion to drive LED strings. * **Uninterruptible Power Supplies (UPS):** Switching elements for power conversion. --- ### 6. Equivalent/Alternative Parts If this specific part is unavailable, the following are common equivalents (ensure you check the package type, as TO-220 vs TO-263 may differ): * **FQP7N65C** (Fairchild/ON Semi) * **STP7NK65Z** (STMicroelectronics) * **IRFBC40** (International Rectifier)