Zener diode specification sheet is also available here as well as zener diode voltage list. Other voltage tolerances and higher zener voltages upon request. Zener voltage z 1 10 100 1,000 1 10 100 v, zener voltage v fig. Write down all circuit equations and simplify as much as possible 2. Zener diodes when we first talked about practical diodes, it was mentioned that a parameter associated with the diode in the reverse bias region was the breakdown voltage, v br, also known as the peakinverse voltage piv. Features, specifications, alternative product, product training modules, and datasheets are all available. In this tutorial, we will examine the use of zener diode in pspice and learn about editing the properties of devices this tutorial is written with the assumption that you know how to do all of the basic things in. The datasheet is printed for reference information only. Diode types datasheets state a variety of different parameters or specifications for zener diodes these parameters define the performance of the diode within certain limits and investigating them forms an integral part of any design process. Understand zener diode datasheet specifications electronics.
These devices are designed to provide voltage regulation with minimum space requirement. The zener impedance is derived from the 60 hz ac voltage which results when an ac current having an rms value equal to 10% of the zener current i. The diode consists of a special, heavily doped pn junction, designed to conduct in the reverse direction when a certain specified voltage is reached. April 7, 20 introduction a zener diode is a pn junction that has been specially made to have a reverse voltage breakdown at a specific voltage. The zener diode working principles and its various. Sdz9v1g zener diode small signal zener diode features and benefits silicon planar power zener diode low zener impedance and low leakage current high reliability and very high stability green device and rohs compliant device applications sod123 constant voltage regulation, 40 20 500 1. Datasheet identification product status definition advance information preliminary no. Silicon planar power zener diodes for use in stabilizing and clipping circuits with high power rating. Lowpower voltage regulator diodes in small hermetically sealed glass sod80c surfacemounted device smd packages. Bzx84bxxxlt1g, bzx84cxxxlt1g series, szbzx84bxxxlt1g. Zener diodes or voltage reference diodes are used in a variety of circuits to enable them to provide a voltage reference. Dec 16, 2015 a zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction.
Its characteristics are otherwise very similar to common diodes. The zener diode has a welldefined reversebreakdown voltage, at which it. Recipe for solving diode circuits state of diode is unknown before solving the circuit 1. A zener diode is a semi diode with great properties. This was a bad thing before the whole avalanche breakdown, large current. Orders placed on our website will ship the same business day if ordered by 3pm mst. They can also be used in other circuits apart from just providing a voltage reference. Edgar zuim pagina 5 1n988 400 mw 1n4739 9,1 1 w 1n5365 36 5 w 1n989 150 400 mw 1n4740 10 1 w 1n5366 39 5 w. Bzx85c series silicon zener diodes datasheet catalog. The diodes are available in the normalized e24 2 % bzv55b and approximately 5 % bzv55c tolerance range. Transient thermal impedance from junction to am bient as a function of pulse duration. This graph from the diodes datasheet enlarges the curvy, forward. A zener diode is a silicon semiconductor device that permits current to flow in either a forward or reverse direction. A tutorial on zener diodes and how to use them as voltage clamps, voltage regulators, and how to create audio distortion circuits.
A datasheet might even present you with a very familiar looking currentvoltage graph, to further detail how the diode behaves. 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. Absolute maximum ratings t a 25 1 symbols values units zener current see table characteristics. Zener temperature zeners 1n746a 1n759a continued disclaimer fairchild semiconductor reserves the right to make changes without further. Use the diode equation for that state to solve the circuit equations and find i d and v d 3. The series consists of 37 types with nominal working voltages from 2. Zener diode definition a zener diode is a type of diode that permits current to flow in the forward direction like a normal diode, but also in the reverse direction if the voltage is larger than the breakdown voltage known as zener knee voltage or zener voltage. Zener diodes are normal pn junction diodes operating in a reversebiased condition. Use the diode equation for that state to solve the circuit equations and find i. D1june 2007bzx55c2v4 bzx55c56zener diodesabsolute maximum ratings ta 25c unless otherwise noted these ratings are limiting values above which the serviceability of the diode may be impaired. Edgar zuim pagina 5 1n988 400 mw 1n4739 9,1 1 w 1n5365 36 5 w 1n989 150 400 mw 1n4740 10 1 w 1n5366 39 5 w 1n990 160 400 mw 1n4742 12 1 w 1n5367 43 5 w 1n991 180 400 mw 1n4743 1 w 1n5368 47 5 w 1n992 200 400 mw 1n4744 15 1 w 1n5369 51 5 w 1n5221 2,4 500 mw 1n4745 16 1 w 1n5370 56 5 w.
In breakdown the voltage across the zener diode is close to. Basics currentvoltage characteristic of a zener diode with a breakdown voltage of 17 volt. Eic discrete semiconductors bzx85c5v1 datasheet pdf. Zener diodes with specification sheets little diode. Bzx84bxxxlt1g, bzx84cxxxlt1g series, szbzx84bxxxlt1g, szbzx84cxxxlt1g series zener voltage regulators 250 mw sot. The zener diode working principles and its various applications.
651 1419 98 59 1058 957 923 76 1278 476 564 14 231 169 369 1254 184 84 1293 116 1058 866 563 84 1079 1381 846 1452 1326 196 575 96 125 180 616 732 865 799 398 830 1456