The **BSO200N03S** (often confused with similar nomenclature like BSO2N60) is a specific type of N-channel enhancement mode MOSFET. Based on the technical specifications of the Infineon OptiMOS™ series, here is the breakdown of its electronic characteristics. --- ### ## Technical Specifications The following table summarizes the key electrical parameters for the **BSO200N03S**: | Parameter | Symbol | Value | Unit | | :--- | :--- | :--- | :--- | | Drain-Source Voltage | $V_{DS}$ | 30 | V | | Continuous Drain Current | $I_D$ | 8.9 | A | | Static Drain-Source On-Resistance | $R_{DS(on)}$ | 20 | mΩ | | Gate-Source Voltage | $V_{GS}$ | ±20 | V | | Total Gate Charge | $Q_g$ | 5.3 | nC | | Operating Temperature | $T_j$ | -55 to 150 | °C | --- ### ## Key Features * **Logic Level Drive:** This MOSFET is designed to be fully "turned on" by logic-level voltages (e.g., 4.5V), making it compatible with microcontrollers and digital logic circuits. * **Low On-Resistance:** The $R_{DS(on)}$ of 20 mΩ ensures minimal power dissipation during the conduction phase, enhancing efficiency. * **Fast Switching:** Due to low gate charge ($Q_g$), the device can switch states rapidly, reducing switching losses in high-frequency applications. * **Package Type:** Usually comes in an **SO-8** (Small Outline) surface-mount package, which is ideal for space-constrained PCB designs. --- ### ## Typical Applications 1. **DC-DC Converters:** Used in buck or boost converters for power management in laptops and mobile devices. 2. **Load Switching:** Acting as a digital switch to turn on/off peripheral components in an electronic system. 3. **Battery Management:** Utilized in protection circuits for Li-ion battery packs due to its low thermal footprint. --- ### ## Pin Configuration (SO-8 Package) The standard SO-8 pinout for an N-channel MOSFET is as follows: ```text Top View +-------+ S --| 1 8 |-- D S --| 2 7 |-- D S --| 3 6 |-- D G --| 4 5 |-- D +-------+ (S = Source, G = Gate, D = Drain) ```