FDS6681Z P-Channel Power MOSFET (-30V, 3.8 mΩ, SO-8)

Simplify your high-side power switching and build bulletproof reverse polarity protection circuits with the FDS6681Z P-Channel MOSFET. While N-Channel MOSFETs are great for switching ground, switching the positive power rail (high-side) with an N-Channel requires complex bootstrap circuits or charge pumps. This premium P-Channel MOSFET solves that problem beautifully—it can be driven directly by a simple logic circuit or transistor pulling the gate to ground, making power distribution design significantly easier and more reliable.

What makes this specific IC truly stand out is its astonishingly low ON-resistance (RDS(on)) of just 3.8 mOhms. For a P-Channel device, this is incredibly low, allowing massive amounts of current to pass through with virtually zero voltage drop and minimal heat generation. Rated at -30V, it is the ultimate choice for building highly efficient "ideal diode" reverse-polarity protection circuits for 12V and 24V systems, drone Power Distribution Boards (PDBs), and custom power management modules housed in a standard, easy-to-solder SO-8 package.

Key Features:

• High-Side Switching Made Easy: P-Channel topology allows for direct switching of the positive voltage rail without the need for complex external gate drivers.

• Extreme Low Resistance: The phenomenal 3.8 mΩ RDS(on) guarantees maximum efficiency and eliminates the need for bulky heatsinks under heavy continuous loads.

• Reverse Polarity Protection: The absolute best component for designing loss-less reverse polarity protection circuits to safeguard expensive electronics from incorrectly connected batteries.

• -30V Voltage Rating: Provides a robust safety margin for 12V and 24V DC systems, as well as 3S, 4S, and 5S LiPo battery architectures.

Specifications:

• Part Number: FDS6681Z

• Transistor Type: P-Channel Power MOSFET

• Max Drain-Source Voltage (Vds): -30V

• Static Drain-Source On-Resistance (RDS(on)): 3.8 mΩ (Max)

• Package Type: SO-8 (SOIC-8, SMD/SMT)