FDN335N

The FDN335N is a N-channel MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) manufactured by ON Semiconductor. It is designed for low-voltage applications and is particularly suitable for use in power management and switching applications. Here’s a detailed description of its key features and specifications:

Physical Characteristics:

• Package Type: The FDN335N typically comes in a small, surface-mount package, such as the SOT-23, which allows for efficient use of board space and is suitable for automated assembly processes.
• Dimensions: The SOT-23 package has compact dimensions, making it ideal for applications where space is a constraint.

Electrical Characteristics:

• Type: N-channel MOSFET, which means it conducts when a positive voltage is applied to the gate relative to the source.
• Drain-Source Voltage (V_DS): The maximum voltage that can be applied between the drain and source terminals is typically around 30V, making it suitable for low to moderate voltage applications.
• Gate-Source Voltage (V_GS): The maximum gate-source voltage is usually around ±20V, allowing for flexibility in control signal levels.
• Continuous Drain Current (I_D): The FDN335N can handle a continuous drain current of up to 1.5A, depending on the thermal conditions and the PCB layout.
• R_DS(on): The on-resistance (R_DS(on)) is low, typically in the range of a few milliohms, which minimizes power loss during operation and improves efficiency.

Performance Characteristics:

• Switching Speed: The FDN335N features fast switching capabilities, making it suitable for high-frequency applications. This is particularly important in power supply circuits and motor control applications.
• Thermal Resistance: The device has a low thermal resistance, which helps in managing heat dissipation during operation, allowing for higher efficiency and reliability.

Applications:

• Power Management: Ideal for use in DC-DC converters, battery management systems, and power distribution applications.
• Switching Applications: Commonly used in load switching, signal switching, and as a high-side or low-side switch in various electronic circuits.
• Consumer Electronics: Suitable for applications in smartphones, tablets, and other portable devices where space and efficiency are critical.

Additional Features:

• Gate Threshold Voltage (V_GS(th)): The gate threshold voltage is typically low, allowing the MOSFET to turn on with lower control voltages, which is advantageous in battery-operated devices.
• Robustness: The FDN335N is designed to withstand various environmental conditions, making it reliable for long-term use in diverse applications.

In summary, the FDN335N from ON Semiconductor is a versatile and efficient N-channel MOSFET that is well-suited for a variety of low-voltage applications, offering excellent performance in terms of switching speed, power efficiency, and thermal management. Its compact size and robust electrical characteristics make it a popular choice among engineers and designers in the electronics industry.