FDMS015N04B

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The FDMS015N04B is a Field Effect Transistor (FET) designed for switch mode or linear applications. It is part of a family of Metal Oxide SemiconductorField Effect Transistors (MOSFETs) introduced by Fairchild Semiconductor (now ON Semiconductor).

The single FDMS015N04B device provides a high input impedance, fast switching speed, low on-resistance, and low leakage current. It is packaged in a lead frame-based, surface mount package and has a power dissipation of 1W. The general electrical characteristics of the device include an on-resistance (RDS(ON)) of 15mΩ, a maximum gate-source voltage (Vgs) of ±20V, and a maximum junction temperature (Tj) of 150°C.

The FDMS015N04B has a variety of applications in the field of switch mode and linear electronics. These include inverters, power switching, radio frequency switching, high-speed switches, and ultra low-noise amplifiers. It is also suitable for use in analog and digital power conversion, such as DC-DC converters, AC-DC converters, and charge pumps.

The FDMS015N04B works on the principle of mobile charge carriers, whereby the gate-drain voltage applied to the gate terminal controls the number of mobile charge carriers available to flow between the source and drain terminals. This in turn affects the conduction of current between the source and drain terminals and consequently, the resistance between them.

The source terminal of the FDMS015N04B is connected to a positive voltage source, while the drain terminal is connected to the load. The gate terminal is connected to a voltage source, which is used to control the current flowing between the source and drain. When the gate-drain voltage increases, the number of mobile charge carriers available increases, causing a decrease in the resistance between the source and drain. Conversely, when the gate-drain voltage decreases, the number of mobile charge carriers decreases, causing an increase in the resistance between the source and drain.

In this way, the FDMS015N04B can be used to switch on or off an electronic circuit, depending on the gate-drain voltage applied to the gate terminal. The FDMS015N04B is essentially a voltage controlled switch and is suitable for applications requiring very high speed switching, low power consumption, and excellent reliability.

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