Discrete Packaging
Discrete Packaging
A discrete component is an electronic component with just one circuit element that performs a single function affecting the flow of electrical current. They can be classified as active (Transistors, Diodes) or passive (Capacitors, Resistors, Inductors). A discrete circuit is formed from a combination of several discrete devices and they are very much different from the Integrated Circuit (IC) and Hybrid Circuits that are built from several circuit elements in one package.
The most commonly used transistor device today is the MOSFET (Metal Oxide Semiconductor Field Effect Transistor) where the voltage applied to the gate determines whether the switch is on or off. Another commonly found discrete device is the Power Semiconductor Device intended for high current or high voltage applications.
Most of the Discrete devices are assembled on leadframe; Copper with Silver plated leadfingers, Bare Copper leadframes and Alloy 42 leadframes. The leadframe can be designed with individually separated package or in a panelized design consisting of high number of packages such as QFN (Quad Flat Non-Lead) or DFN (Dual Flat Non-Lead) format. Most commonly found packages outlines are SO, SOT, SOP, TSSOP, TO, DPAK, and D2PAK.
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