Semiconductor Tutorial
Tutorial on Tunnel Diode and Back Diode
TUNNEL DIODE A tunnel diode is a semiconductor with a negative resistance region that results in very fast switching speeds, up to
Tutorial on Unijunction Transistor
The unijunction transistor(UJT) is a three terminal device with characteristics very different from the conventional 2 junction, bipolar transistor. It is a
Tutorial on Germanium Diodes
Early semiconductor developments used germanium as the commercial, semiconductor material. Due to its ease of processing and more stable temperature characteristics, silicon
Tutorial on Diode Arrays
Multiple diode packaging or diode arrays have been an important semiconductor product. They save assembly time and improve reliability over individually packaged
Tutorial on DIAC
The diac is a bidirectional trigger diode which is designed specifically to trigger a triac or SCR. Basically the diac does not
Tutorial on Zener Diode
Refer to the characteristic curve of a typical rectifier(diode) in the figure below. The forward characteristic of the curve we have previously
Tutorial on Varactor Diode
The varactor diode symbol is shown below with a diagram representation: When a reverse voltage is applied to a PN junction, the
Tutorial on Triac
The triac is a three terminal semiconductor for controlling current in either direction. Below is the schematic symbol for the triac. Notice
Tutorial on Transient Voltage Supressor
Transient Voltage Suppressors (TVS) are semiconductor devices designed to provide protection against voltage and current transients. The silicon TVS is designed to
Tutorial on SCR
The Silicon Controlled Rectifier (SCR) is simply a conventional rectifier controlled by a gate signal. The main circuit is a rectifier, however
Tutorial on MOSFETS
A FET with an oxide coating between gate and channel is called a MOSFET (metal- oxide semiconductor field effect transistor). The figure
Tutorial on Junction FET
The J-FET (Junction Field Effect Transistor ) and the MOS-FET (Metal-Oxide-Semiconductor FET) are voltage controlled devices: that is a small change in
Tutorial on ECG, SK, and NTE Type Semiconductor Components
ECG semiconductors were originally intended for the replacement, hobbyist, and experimental markets and in time found applications in industrial repair and maintenance
Tutorial on Diode – Rectifier
In this discussion the term diode and rectifier will be used interchangeably; however, the term diode usually implies a small signal device
Tutorial on Bipolar Transistor
Bipolar transistors, having 2 junctions, are 3 terminal semiconductor devices. The three terminals are emitter, collector, and base. A transistor can be