How to Read Zener Diode Code

Many technicians are perplexed on tips on how to in reality learn a zener diode code. There are many kinds of code quantity indicated on it is physique. The glance and form of a zener diode sometimescan be improper to be a regular sign diode. To differentiate it, is through having a look on the codenumber on it is body- whether or not this is a commonplace diode or zener diode. Thanks to the producers the place their major forums are published with the phrase ‘ZD’ which referred to zener diode and ‘D’ way a diode.

However, from my skilled some published circuit board the marking of ‘D’ may constitute zener diode. This will misled a technician into believing a zener diode is in truth a diode. We as a technician or engineer should know or be delicate in regards to the marking. The most effective method to in finding out is through referring the code quantity imprinted on the element’s physique from a semiconductor information e book. Without information e book it’s slightly tricky to understand the true zener diode voltage. If you do not need the information e book you might cross to Google seek engine and sort the next code and hope you’ll be able to uncover the answer there! A incorrect substitution of zener diode might brought about your apparatus to malfunction and now and again can even blow your apparatus. Time and cash are loss because of that we lack of expertise of determine the appropriate zener diode voltage. If you might be not able to spot the code, don’t worry as this text are right here to steer you to effectively on tips on how to learn 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 (seek advice from ECG PHILIPS SEMICONDUCTORS MASTER REPLACEMENT GUIDE)

BZY85C22=22Volt 1/2 watt zener diode (seek advice from ECG PHILIPS SEMICONDUCTORS MASTER REPLACEMENT GUIDE)

Note: There could also be section quantity equivalent to BZVXXXXX the place you must in finding it from ECG SEMICONDUCTOR BOOK.

1N4746= 18 Volt 1 watt zener diode (seek advice from ECG PHILIPS SEMICONDUCTORS MASTER REPLACEMENT GUIDE)

6C2=6.2 Volt zener diode. (If you take a look at the zener diode code it’s written as 6C2 READING FROM TOP TO BOTTOM) Don’t learn from backside to best another way the price you get is 2C6 which you can’t in finding from information e book!

I imagine many will ask how do I am getting the voltage for the code of 6C2. Still seek advice from ECG e book, you must seek for HZ section quantity. That’s imply as an alternative of discovering 6C2, seek for HZ6C2 and you are going to get the solution! The lowest zener voltage that I got here throughout was once 2.four volt and the very best was once 200 Volt Five watt.

Conclusion- Be alert when checking the section choice of a zener diode. Don’t at all times think {that a} small sign diode is at all times a zener diode. Carefully practice the marking at the major board and browse the zener diode section quantity seek advice from the semiconductor e book, ideally ECG SEMICONDUCTOR DATA BOOK which you’ll be able to get out of your native digital distributor. With this information in thoughts, you are going to be effectively in finding the appropriate voltage of a zener diode.

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