Three Pin Diode

A pin diode is a diode with a wide undoped intrinsic semiconductor region between a p type semiconductor and an n type semiconductor region.

Three pin diode.

Mouser offers inventory pricing datasheets for sot 23 3 pin diodes. Integrated circuits are put into protective packages to allow easy handling and assembly onto printed circuit boards and to protect the devices from damage. Make offer 100 pcs bar64 05e6327 diode pin attenuator switch 150v 3 pin sot 23 t r. Please view our large selection of pin diodes below.

The diode in which the intrinsic layer of high resistivity is sandwiched between the p and n region of semiconductor material such type of diode is known as the pin diode. The wide intrinsic region is in contrast to an ordinary p n diode the wide intrinsic region makes the pin diode an inferior rectifier one typical. The pin diode is an alteration of the pn junction for particular applications. For a 1n4728a zener diode the value of v z is 3 3v and p z is 500mw as mentioned in specifications above now with supply voltage vs of 12v the value of rs will be.

The occurrence of an intrinsic layer can significantly increase the breakdown voltage for the application of high voltage. A standard sized 8 pin dual in line package dip containing a 555 ic. After the pn junction diode was developed in the year 1940s the diode was first exercised as a high power rectifier low frequency during the year 1952. The p type and n type regions are typically heavily doped because they are used for ohmic contacts.

Sot 23 3 pin diodes are available at mouser electronics. The pin diode comprises a semiconductor diode having three layers naming p type layer intrinsic layer and n type layer as shown in the figure below. Rs 12 3 3 iz iz pz vz 500mw 3 3v 151ma therefore rs 12 3 3 151 0 0576 57 ohms rs 60ohms approx applications of diode. Used in voltage protection circuits.

The high resistive layer of the intrinsic region provides the large electric field between the p and n region. 100 pcs bar64 05e6327 diode pin attenuator switch 150v 3 pin sot 23 t r. A very large number of different types of package exist. In general single diodes in 3 lead sm packages have no connection on the third pin.

I don t have a solid answer as to why they do this but will share a few possibilities for debate. Solid state inc mr756 standard diode 6a 600v used. The p and n regions are there and the region between them consists of the intrinsic material and the doping level is said to be very low in this region.