Tstg 65 to 175 c mechanical data items materials package do35 case hermetically sealed. Zero voltage drop occurs across a forwardbiased ideal diode i. For more protection consider the following clipping circuit. The 1n4148 is useful in switching applications up to about 100 mhz with a reverserecovery time of no more than 4 ns. The cathode terminal can be identified by using a grey bar as shown in the picture above. If 10 ma 1n4148tr vf 1v if 100 ma 1n4448tr vf 1v reverse current vr 20 v ir 25 na vr 20 v, tj 150 c ir 50 a vr 75 v ir 5 a breakdown voltage ir 100 a, tpt 0. When the diode is negative biased, no current can flow in the r, so vout 0.
Valid provided that device terminals are kept at ambient temperature. Jun 10, 2017 good switching diode can be chosen by its maximum reverse recovery time and its power dissipation ranging from 80mw to 1kw. Diodes and diode circuits tlt8016 basic analog circuits 20052006 5 assumed states for analysis of ideal diode circuits example 3. T and a indicates axial tape and ammo packing 52mm tape spacing. It is basically a diode used for fast switching purposes. Ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier, ph4148 pdf. Vishay silicon epitaxial planar diodes,alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Pdf edition1978 ausgabe1978 bs3934 so26 ot114 ns371 apy12 bav77 ac176 byy32 aey26 af124 aey30b zener 9a2 5t acy23 ac188. Diodes general purpose, power, switching 75 vrrm 53vr 150 ma fast switch diode enlarge mfr. Diode circuits tutorial pdf 25p this note covers the following topics. Silicon planar diodes, 1n4148 datasheet, 1n4148 circuit, 1n4148 data sheet. The diode current at turnoff is the same as the current when on, as mike said above.
A diode is an electronic component that permits current flow in only one direction. Switching diodes are usually single pn diodes and their functionality is similar to that of normal switch. Apr 12, 2019 ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier, ph4148 pdf, ph4148 pinout, ph4148 equivalent, ph4148 replacement, ph4148 schematic, manual. In some circumstances this can cause arcing of the contacts as they are pulled apart too slowly. It is one of the most popular and longlived switching diodes because of its dependable specifications and low cost. The circuit schematic symbol of a diode is shown in figure 5.
Peak inverse voltage peak inverse voltage piv across the diode. Diode capacitance vr 0 v, f 1 mhz, vhf 50 mv cd 4pf rectification efficiency vhf 2 v, f 100 mhz. Ph4148 datasheet, ph4148 pdf, ph4148 data sheet, ph4148 manual, ph4148 pdf, ph4148, datenblatt, electronics ph4148, alldatasheet, free, datasheet, datasheets, data. That is the current should always flow from the anode to cathode. Characteristics kennwerte 1n4148 1n4150 1n4151 1n4448. A circuit that puts too much current through a diode will burn it up. Jun 11, 2018 1n4148ph datasheet high speed switching diode, pdf, pinout, equivalent, replacement, schematic, manual, data, circuit, parts, datasheet. Its ability to conduct current is limited by its size and construction. Hence comparing the schematic symbol to the pn junction in figure 4, we see the anode is the ptype semiconductor and the cathode is the ntype semiconductor. Small signal fast switching diodes vishay intertechnology. The 1n4148 has a maximum continuous current of 200 milliamps and a pulsed maximum current of 450 milliamps. Diode schematic symbol and actual picture of a common 1n914 diode the black stripe in the picture is the cathode.
Reverse voltage electrical characteristics tamb 25 c, unless otherwise specified parameter test condition part symbol min. Today, i am going to give an introduction to 1n4148. Cathode band mark package code 1n4148 black h48 do35 outline 1. Diodes and diode circuits tlt8016 basic analog circuits 20052006 8 half wave rectifier with smoothing capacitor figure 3. Diodes general purpose, power, switching 75 vrrm 53vr 150 ma fast switch diode. The 1n4148 is a standard silicon switching signal diode. Ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier, ph4148 pdf, ph4148 pinout, ph4148 equivalent, ph4148 replacement, ph4148 schematic, manual.
Can any one please help me in knowing the specifications of a diode with this number on it. A diode is a device which allows current flow through only one direction. The 1n4148, ph4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. Forward voltage durchlassspannung tj 25c if 5 ma 10 ma 50 ma 100 ma 200 ma vf. This current through the diode has the effect of continuing the relay magnetic field until the current finally drops to zero. For most circuits where a 1n4148 is needed, almost any other small silicon diode will just work. A diode conducts current in the forward direction, blocking it in the reverse direction. The 1n4148 is a generalpurpose discrete diode with high switching speed and modest maximum current and reverse voltage ratings. Determine the polarity of the voltage across the diode, then replace the diode with. Silicon epitaxial planar diode for various detector. Apr 27, 2009 the diode current at turnoff is the same as the current when on, as mike said above. For in4148 diode, the maximum current carrying capacity is 300ma it can withstand peaks up to 2a.
Zero current flows in a reversebiased ideal diode i. The pn junction and the diode effect, current in the diode, the pn diode as a circuit element, circuit applications of ordinary diodes, power supplies, power supply filtering, split power supply, diode gate, diode protection. Pdf on feb 1, 2017, debanjan mukherjee and others published comparative study of 1n4148 diode and tmp36gt9z in smart ventilation unit using solar power find, read and cite all the research you. Compare pricing for texas instruments 1n4148 across 9 distributors and discover alternative parts, cad models, technical specifications, datasheets, and more on octopart. Hermetically sealed leaded glass sod27 do35 package 2. Ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier. Diotec, alldatasheet, datasheet, datasheet search site for electronic components and. Absolute maximum ratings stress ratings, consult datasheet for recommended ratings. Ul flammability classification rating 94v0 moisture sensitivity. Silicon epitaxial planar diode for various detector, modulator, demodulator ade208147c z rev. Pdf comparative study of 1n4148 diode and tmp36gt9z in. Zener diode ph 4148 datasheet, cross reference, circuit and application notes in pdf format. Glass and high temperature solder exemptions applied where applicable. Diodes, 1n4148 datasheet, 1n4148 circuit, 1n4148 data sheet.
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