After some googling i found all i need is a parallel port plug and some 1n4148 diode. This 16bit io expander for the twoline bidirectional. The 1n4148, ph4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. Pricing and availability on millions of electronic components from digikey electronics. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed. Ph4148 datasheet, ph4148 pdf, ph4148 data sheet, ph4148 manual, ph4148 pdf, ph4148, datenblatt, electronics ph4148, alldatasheet, free, datasheet, datasheets, data. This diode is also available in other case styles including. Add a resistor in 10k to, sampling of vcs ph is performed at the end of conduction of t2. Q101 qualified and ppap capable these devices are pb. Hermetically sealed leaded glass sod27 do35 package 2. A simple zener diode voltage regulator in the voltage regulator the zener diode operates in the breakdown region, which ensures approximately constant voltage across it.
T4148 datasheet, t4148 pdf, t4148 data sheet, datasheet, data sheet, pdf. Dec 01, 2017 speciality of 1n4148 diode is its fast recovery time of 8ns at a forward current of 10ma, hence this diode is used in places where fast switching are involved. From the shockley ideal diode equation given above, it appears the voltage has a positive temperature coefficient at a constant currentbut depends on doping concentration and operating temperature. Silicon epitaxial planar diode fast switching diodes. The 1n4148 is a standard silicon switching signal diode. My pc game controller broke and since i have some old ps1 controllers i was thinking about converting one to pc. Cathode band mark package code 1n4148 black h48 do35 outline 1.
A specific diode s vf depends on what semiconductor material its made out of. Can any one please help me in knowing the specifications of a diode with this number on it. Glass and high temperature solder exemptions applied where applicable. General purpose, industrial, military and space applications. Protect your stuff from wrong polarity to protect your stompboxes or active guitar wirings from damages caused by wrong polarity, you only need a simple diode, eg. Write down all circuit equations and simplify as much as possible 2. The 1n4148 is useful in switching applications up to about 100 mhz with a reverserecovery time of no more than 4 ns.
Tstg 65 to 175 c mechanical data items materials package do35 case hermetically sealed. B21 of 21n4148 1n4448features1n4148 1n4448fast switching diodefast switching speed datasheet search, datasheets, datasheet search site for electronic components and semiconductors, integrated circuits, diodes and other semiconductors. The diode will only open and allow the power to flow in one the correct direction. A multimeter with a diode setting can be used to measure the minimum of a diode s forward voltage drop. The ideal diode will have zero resistance when forward biased, however real diodes require that the forward bias exceed a threshold voltage v f before forward conduction begins. Absolute maximum ratings stress ratings, consult datasheet for recommended ratings. Datasheet search engine for electronic components and semiconductors. Valid provided that device terminals are kept at ambient temperature. As it is a lowcost twolead part, hobbyists use it for building project circuits, including those for.
When the diode is in forward conduction, the voltage drop across the diode is. A diode is an electronic component that permits current flow in only one direction. Silicon epitaxial planar diode for various detector, modulator, demodulator ade208147c z rev. Buy online t4148 small signal silicon diode,download fairchild 1n4148 datasheet. The diode is said to be forward biased when the anode is more positive than the cathode. If a diode is fully conducting, it can usually be assumed that the voltage across it is the forward voltage rating. Hermetically sealed glass with a stud on either side of the glass passivated chip provides excellent stability. Ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier. In order to promote public education and public safety, equal justice for all, a better informed citizenry, the rule of law, world trade and world peace, this legal document is hereby made available on a noncommercial basis, as it is the right of all humans to know and speak the laws that govern them. Dl4148tp micro commercial co discrete semiconductor. A diode can be used as a temperature measuring device, since the forward voltage drop across the diode depends on temperature. The 1n4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. Recipe for solving diode circuits state of diode is unknown before solving the circuit 1. Dl4148tp diode standard 75v 150ma surface mount mini melf from micro commercial co.
I have a diode that has ph4148 written on it and one that has t4148. Use the diode equation for that state to solve the circuit equations and find i d and v d 3. It is one of the most popular and longlived switching diodes because of its dependable specifications and low cost. The 1n4148, ph4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed. Ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier, ph4148 pdf, ph4148 pinout, ph4148 equivalent, ph4148 replacement, ph4148 schematic, manual. Glass package version for high reliability a b a a. Silicon epitaxial planar diode for various detector. Diodes and diode circuits tlt8016 basic analog circuits 20052006 11 3. Aeg corp 17e d a ttillilfiyiklkiinl electronic creative technoogies 002t42b oqotaai 5 a 1 n41481 im 4149 1n 4446 1 n 4447 a.
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