The IR MOSFET series of power MOSFETs use proven silicon technologies to provide designers with a diverse device portfolio to serve a variety of applications including DC motors, inverters, SMPS, lights, load switches, and battery-powered applications. For ease of design, the devices come in a choice of surface mount and through-hole packaging with industry-standard footprints.
This page will go through the IRF640N in detail, from its features and pinout to its specifications and uses, as well as the IRF640N datasheet.
MOSFET, in short, is a metal oxide semiconductor field-effect transistor used to switch or amplify voltages in circuits. Being part of the field-effect transistor family, it is a current-controlled device that is constructed with 3 terminals;
1. Source
2. Gain
3. Drain
The purpose of a MOSFET transistor is essentially to control voltage/current flow between the source and the drain. The working principle differs based on the type of MOSFET.