When connected in parallel with a variable voltage source so that it is reverse biased, a zener diode conducts when the voltage reaches the diode s reverse breakdown voltage. Complete technical details can be found at the 1n4148 datasheet given at the end of this page. Zener diodes are heavily doped than ordinary diodes. Small signal diode, 1n4148 datasheet, 1n4148 circuito, 1n4148 data sheet. The 1n4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. From the iv characteristics curve above, we can see that the zener diode has a region in its reverse bias characteristics of almost a constant negative voltage regardless of the value of the current flowing through the diode. Microsemi manufactures a large portfolio of zener diodes, including low avalanche, zener voltage regulator diodes and temperature compensated zeners. Oct 16, 2019 silicon planar power zener diodes 1n4727a1n4761apdf. The 1n4148 is a standard silicon switching signal diode. General purpose, industrial, military and space applications. Zener diodes are normal pn junction diodes operating in a reversebiased condition. Limiting signals with zener diodes a varying analog signal can be constrained to a fairly narrow range of voltages with a single zener diode. Highspeed diodes, 1n4148 datasheet, 1n4148 circuit, 1n4148 data sheet. Features mechanical data maximum ratings diodes incorporated.
Zener diodes are in stock with sameday shipping at mouser electronics from industry leading manufacturers. Get same day shipping, find new products every month, and feel confident with our low price guarantee. Chanzon 1w zener diode assorted kit 30 values x 10pc 3v 3. Pricing and availability on millions of electronic components from digikey electronics. Diodes incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes. Silicon planar diodes, 1n4148 datasheet, 1n4148 circuit, 1n4148 data sheet. Diode crossreference guide continued 1n970a 1n970b 1n971 1n971a 1n971b 1n972 1n972a 1n972b 1n973 1n973a 1n973b 1n97a 1n98 1n98a 1n99 1n993 1n994 1n995. Let us learn about this exciting and unique kind of diode. The 1n4148, ph4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. We operate a zener diode in reverse biased conditions, and this diode does not get damaged even when the voltage across this exceeds the reverse breakdown voltage. A broad range of surfacemount and leadless packages enable zener diodes with a wide range of capabilities. When forwardbiased, zener diodes behave much the same as standard rectifying diodes. Philips highspeed diodes,alldatasheet, datasheet, datasheet search site for electronic.
Replace suffix c with b for 2 % tolerance aecq101 qualified material categorization. Mmsz5225 thru mmsz5267 vishay semiconductors formerly general semiconductor document number 88363. Philips, alldatasheet, datasheet, datasheet search site for electronic components and semiconductors, integrated circuits, diodes, triacs, and other semiconductors. Diotec, alldatasheet, datasheet, datasheet search site for electronic components and. Zener diodes features silicon planar power zener diodes for use in stabilizing and clipping circuits with high power rating the zener voltages are graded according to the international e 24 standard. Diodes generally are known as a device that allows the flow of current in one direction forward biased and offers resistance to the flow of current when used in reverse bias. Silicon epitaxial planar switching diode 1n4148 kingtronics. Zener diodes features high reliability voltage range 3. Ph4148 datasheet pdf 100v, 200ma, zener diode, rectifier. Marking type number marking code 1n4148 1n4148ph or 4148ph 1n4448 1n4448 fig. This item 1n4148 logic diode diode 1n4148 lot of 25 units, fl usa.
Diodes incorporated offers tight tolerance zener diodes. Zener who first explained its operational principles on the other hand, not only allow the flow of current when used. The 1n4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded. The zener diode working principles and its various applications. Diodes incorporated does not assume any liability arising out of the application or use of any product.
Zener diodes are widely used as voltage references and as shunt regulators to regulate the voltage across small circuits. Zener diodes electronic components from allied electronics. Silicon epitaxial planar diode for various detector. Diodes overview diodes are mostly used in practice for emitting light as light emitting diodes, leds or controlling voltages in various circuits. In reversebias mode, they do not conduct until the applied voltage reaches or exceeds the socalled zener voltage, at which point the diode is able to.
Hermetically sealed glass with a stud on either side of the glass passivated chip provides excellent stability. 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. Apr 12, 2019 the 1n4148, ph4148 and 1n4448 are highspeed switching diodes fabricated in planar technology, and encapsulated in hermetically sealed leaded glass sod27 do35 packages. Working of the zener diode is similar to a pn junction diode in forwarding biased condition, but the uniqueness lies in the fact that it can also conduct when it is connected in reverse bias above its thresholdbreakdown voltage. The zener diode is used in its reverse bias or reverse breakdown mode, i. A wide variety of st4148 zener diode options are available to you, there are 76 suppliers who sells st4148 zener diode on, mainly located in asia. An ionimplanted epitaxial wafer process allows tolerances as tight as 2.
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