Several technicians are baffled on how to really research a zener diode code. There are many types of code quantity indicated on it’s body. The appear and form 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. Many many thanks to the producers where their primary boards are printed with the word ‘ZD’ which referred to zener diode and ‘D’ indicates a diode.

However, from my skilled some printed circuit board the marking of ‘D’ also can signify zener diode. This will misled a technician into believing a zener diode is really a diode. We as a technician or engineer should know or be sensitive about the marking. The only way to find out is by referring the code quantity printed on the component’s body from a semiconductor info guide. With out info guide it is really difficult to know the actual zener diode voltage. If you do not have the info guide you might go to google lookup engine and kind the subsequent code and hope you can find the answer there! A incorrect substitution of zener diode might brought on your gear to malfunction and sometimes will even blow your gear. Time and money are loss simply because of to that we lack of understanding of figure out the right zener diode voltage. If you are unable to figure out the code, do not worry as this newsletter are here to manual you to successfully on how to research the zener diode code.

five.one=five.1Volt zener diode

5V1=five.1Volt zener diode

twelve= twelve Volt zener diode

12V= twelve Volt zener diode

BZX85C22=22Volt one watt zener diode (refer to ECG PHILIPS SEMICONDUCTORS Grasp Substitute Guide)

BZY85C22=22Volt one/2 watt zener diode (refer to ECG PHILIPS SEMICONDUCTORS Grasp Substitute Guide)

Discover: There is also component quantity this kind of as BZVXXXXX where you have to find it from ECG SEMICONDUCTOR Book.

1N4746= 18 Volt one watt zener diode (refer to ECG PHILIPS SEMICONDUCTORS Grasp Substitute Guide)

6C2=six.2 Volt zener diode. (If you appear at the zener diode code it is created as 6C2 Studying FROM Top TO BOTTOM) Do not research from bottom to leading otherwise the worth you get is 2C6 which you can’t find from info guide!

I think many will inquire how do I get the voltage for the code of 6C2. Nevertheless refer to ECG guide, you have to lookup for HZ component quantity. That is imply rather of finding 6C2, lookup for HZ6C2 and you will get the answer! The lowest zener voltage that I came across was 2.four volt and the greatest was 200 Volt five watt.

Conclusion- Be alert when checking the component quantity of a zener diode. Do not usually assume that a little signal diode is usually a zener diode. Cautiously observe the marking on the primary board and research the zener diode component quantity refer to the semiconductor guide, ideally ECG SEMICONDUCTOR Information Book which you can get from your nearby digital distributor. With this understanding in thoughts, you will be successfully find the right voltage of a zener diode.

Jestine Yong is a digital repairer and writer. For a lot much more info on digital fix make sure you go to his website at http://www.noahtec.com