Product Name: IRF1404 Large Chip N-Channel MOSFET Color: Black and Silver Material: Plastic and Metal MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a type of field-effect transistor that controls current flow by varying the width of a conductive channel using a gate voltage. Charge carriers enter the channel at the source and exit via the drain. The channel width is controlled by the voltage applied to the gate electrode, which is insulated from the channel by a thin layer of metal oxide. MOSFETs operate in two modes: depletion mode and enhancement mode. In depletion mode, the device conducts maximally with zero gate voltage, and conductivity decreases as gate voltage increases. In enhancement mode, no conduction occurs without gate voltage; a conductive channel forms only when sufficient gate voltage is applied. Higher gate voltage improves conduction. Package Contents: 5 x IRF1404 MOSFETs Note: Color appearance may vary slightly due to lighting conditions and screen settings. Measurement tolerance: ±1–3 cm.