| |
| |
|
Hardware Information |
|
|
|
How to Read Zener Diode Code
Many technicians are confused on how to really read a zener diode code. There are many types of code number indicated on it's body. The look and shape of a zener diode sometimescan be mistaken to be a normal signal diode. To differentiate it, is by looking at the codenumber on it's body- whether it is a normal diode or zener diode. Thanks to the manufacturers where their main boards are printed with the word 'ZD' which referred to zener diode and 'D' means a diode. However, from my experienced some printed circuit board the marking of 'D' also can represent zener diode. This will misled a technician into believing a zener diode is actually a diode. We as a technician or engineer must know or be sensitive about the marking. The only way to find out is by referring the code number printed on the component's body from a semiconductor data book. Without data book it is quite difficult to know the actual zener diode voltage. If you do not have the data book you may go to google search engine and type the following code and hope you can find the answer there! A wrong substitution of zener diode may caused your equipment to malfunction and sometimes will even blow your equipment. Time and money are loss due to that we lack of knowledge of identify the right zener diode voltage. If you are unable to identify the code, do not worry as this newsletter are here to guide you to successfully on how to read the zener diode code. 5.1=5.1Volt zener diode 5V1=5.1Volt zener diode 12= 12 Volt zener diode 12V= 12 Volt zener diode BZX85C22=22Volt 1 watt zener diode (refer to ECG PHILIPS SEMICONDUCTORS MASTER REPLACEMENT GUIDE) BZY85C22=22Volt 1/2 watt zener diode (refer to ECG PHILIPS SEMICONDUCTORS MASTER REPLACEMENT GUIDE) Note: There is also part number such as BZVXXXXX where you have to find it from ECG SEMICONDUCTOR BOOK. 1N4746= 18 Volt 1 watt zener diode (refer to ECG PHILIPS SEMICONDUCTORS MASTER REPLACEMENT GUIDE) 6C2=6.2 Volt zener diode. (If you look at the zener diode code it is written as 6C2 READING FROM TOP TO BOTTOM) Don't read from bottom to top otherwise the value you get is 2C6 which you cannot find from data book! I believe many will ask how do I get the voltage for the code of 6C2. Still refer to ECG book, you have to search for HZ part number. That's mean instead of finding 6C2, search for HZ6C2 and you will get the answer! The lowest zener voltage that I came across was 2.4 volt and the highest was 200 Volt 5 watt. Conclusion- Be alert when checking the part number of a zener diode. Don't always assume that a small signal diode is always a zener diode. Carefully observe the marking on the main board and read the zener diode part number refer to the semiconductor book, preferably ECG SEMICONDUCTOR DATA BOOK which you can get from your local electronic distributor. With this knowledge in mind, you will be successfully find the right voltage of a zener diode. Jestine Yong is a electronic repairer and writer. For more information on electronic repair please visit his website at http://www.noahtec.com
MORE RESOURCES:
Hardware - Google News |
|
|
|
RELATED ARTICLES
Flash Your ATI Video Cards BIOS Flash your ATI video card BIOS.You will need the following:1. A Review of HP Laser Toners Hewlett-Packard is, along with Brother and Samsung, one of the most readily available brands of laser toner. This is due, in part, to the fact that HP was first to release a laser toner inexpensive enough to catch the attention of the average consumer, in 1984. How to Change, Upgade or Remove an IDE Hard Drive Hard drives - Hard drives are a little more complicated. First off, you have to know what you want to do with the hard drive. A Review of Brother Laser Toners Brother is right up there with HP and Samsung as one of the most sought-after brands of laser toner. The Japan-based Brother Industries was first famous for its sewing machines. The Making of Energy Efficient Datacenters The Crooked E: The Unshredded Truth About Enron is a wonderful movie to watch. It is based on the book, The anatomy of greed, written by a former employee of Enron, Brian Cruver. Do You Feel Used by Computers? Do You Feel Used by Computers?A look at second-user computer equipment.Let's dispense with the myths first. Selecting a Laptop Small Can Be BeautifulWhen purchasing a new computer, you may be better served by a laptop than a traditional desktop computer. Recently, laptops with capabilities similar to desktops can be purchased for a comparable price. Special Events Recording in DVD Players Age The proliferation of portable DVD players has dramatically changed the videography approach.Digital era prompted people to make critical choices. At War With The Internet When it comes to sales of technology products over the Internet, there are now two factors that potential buyers must consider as possibly 'too good to be true'. In the past, there was only price to worry about. Heliodisplay --Computer Video With No Screen Science-Fiction meets reality with this new video display technology.The Heliodisplay includes patented and patent pending technology to transform normal ambient air and display video images into free-space. Easy to Execute! Plug and play equipment or hardware solves the problem of driver installation, re-starting routines, and generally speaking, "hassle", for those who are not technically proficient.If your computer supports "Plug and Play", then, as the name suggests, you simply plug it in and play. 3 Easy Step To Locate A Real Bargain On Laptop Batteries Looking for a real bargain on laptop batteries? How do I know the batteries are running good as advertised? Which merchants are offering quality rechargeable cells? Where can I get the bargain? Where to buy?Many of you have some of these questions? Certainly!!. We surely want to saving our hard to earn $$ and only buy quality cells. Routing, Routed, and Non-Routable Protocols ROUTING PROTOCOLSA generic term that refers to a formula, or protocol, used by a router to determine the appropriate path over which data is transmitted. The routing protocol also specifies how routers in a network share information with each other and report changes. Preventing Tape Drive Failure Contrary to popular belief, tape drives are generally robust and reliable. However, there are three common mistakes that people make that dramatically increase the probability of tape drive failure. Ten Ways (plus 1) to Save on Printer Ink and Toner Cartridges Are you getting tired of the high cost of printing? You're not alone. Many consumers are up in arms. What Is A Fuse? And How To Test It. A fuse is a very thin wire, which either melts or vaporizes when too much current flows through it. The thin wire may be made of aluminum, tin-coated copper or nickel. Learn About The Three Basic Types Of Computer Mouse 1) Mechanical: This is a type of computer mouse that has a rubber or metal ball on its underside and it can roll in every direction. Sensors within the mouse, which are mechanical, detect the direction in which the ball is moving and moves the pointer on the screen in the same direction. Testing a Transformer- How To Accurately Test A Transformer There is two types of transformers in the market- linear transformer and switch mode power transformer. The transformers design is different. Thin Clients Benefits are Excellent Options for Computer Homeschools... Just a Suggestion Wireless Consulting and Solution Providers have always been important to african american small businesses and now after several years of having the most technologically advanced homes in our neighborhood, we are beginning to realize that our neighbors could benefit from the same technology in educating our children. With the future our african american children are facing being dependent on computers and broadband access it is critical to have the proper tools for our children to have the confidence necessary to face the future. How To Choose The Best Student Laptop? How To Choose the Best Student Laptop?Merchants are singing those three magic words again, 'Back to School' and the fallout is everywhere!Just as you're getting your deep dark pre-cancerous tan going -- you hear those words -- and it spells the end of summer. Once again we are bombarded with advertising, featuring the latest in 'teen ware' 'school ware' and 'metal detector ware'.
|
| home | index |site map |
| © 2006 |
