Kingtronics Blog

A Zener diode is a special kind of diode which allows current to flow in the forward direction same as an ideal diode, but will also permit it to flow in the reverse direction when the voltage is above a certain value known as the breakdown voltage. A Zener diode exhibits almost the same properties, except the device is specially designed so as to have a greatly reduced breakdown voltage.

The Zener diode's operation depends on the heavy doping of its p-n junction allowing electrons to tunnel from the valence band of the p-type material to the conduction band of the n-type material.

All such diodes, regardless of breakdown voltage, are usually marketed under the umbrella term of "Zener diode".

Kingtronics have much better prices offer for below zener diode, especially BZX55C and BZV55C.

1/2W  BZV55C 2V7 - BZV55 C47    LL-34  Tape & Reel
1/2W  BZX55C 2V7 - 8V2    DO-35 Bulk or Ammo
1W   1N4729A - 1N4756A   DO-41 Bulk or Ammo
1/2W  ZMM2V4 - ZMM47    LL-34  Tape & Reel
1W   ZM4729A - ZM4756A   LL-34Tape & Reel

Please check our website www.kingtronics.com, you can download all PDF datasheet...

Zener diodes are used to maintain a fixed voltage. They are designed to 'breakdown' in a reliable and non-destructive way so that they can be used in reverse

to maintain a fixed voltage across their terminals. The diagram shows how they are connected, with a resistor in series to limit the current.

Zener diodes can be distinguished from ordinary diodes by their code and breakdown voltage which are printed on them. Zener diode codes begin BZX... or BZY...

Their breakdown voltage is printed with V in place of a decimal point, so 4V7 means 4.7V for example.
Zener diodes are rated by their breakdown voltage and maximum power:

• The minimum voltage available is 2.4V.
• Power ratings of 400mW and 1.3W are common.

We kingtronics always sell very good quality capacitors based on our own brand.

Now kingtronics updated website! You can find new pictures of our products! Pls go to http://www.kingtronics.com/products.html to view our all products.

Also we put our certifications below:

Kingtronics certifications

• ISO 9001:2008 certification (PDF: 693KB) ↓ Download
• Bridge rectifier UL certification (PDF: 350KB) ↓ Download
• Trimming potentiometer SGS certification (PDF: 374KB) ↓ Download
• Dipped tantalum capacitors SGS certification (PDF: 323KB) ↓ Download
• Diode rectifier M7 SGS certification

All certifications are available, if you need, pls visit our new web: www.kingtronics.com Or you can send emails to info@kingtronics.com

Welcome to your visit!

From Mar 28th - Apr 1st, Kingtronics exhibited successfully at FIEE (electronicAmericas 2011) in Saopaulo, Brazil. Our booth No. is N67.

Many customers comment our our beautiful booth and active sales. On the following, you could find our beautiful booth photos. :-)

"Kt" brand: diode M7 LL4148 BZV55C RS1M, Bridge rectifier, Quartz crystal
"Kingtronics" brand: radial mlcc capacitor, dipped tantalum capacitor,Trimming Potentiometer

This time, we win more new customers and some even place order at our booth!!!
To meet customers' requirments better, we prepare some common stock samples for urgent case, pls check below.
If you have inquiry, pls feel free to contact me, thank you!

Trimming Potentiometer

RKT-3296W-103-R    100pcs
RKT-3006P-103-R     100pcs
RKT-3386P-103-R       100pcs
RKT-3266W-103-R      100pcs
RKT-3329H-103-R      50pcs

MKT--Multilayer radial mlcc capacitor

1000pF 50v +/-5% NPO P: 2.54mm bulk RoHS.     50pcs
0.047uF 50V +/-10% X7R P: 5.08mm bulk RoHS.   50pcs
0.1uF 50V +/-10% X7R P: 5.08mm bulk RoHS.    50pcs
1uF 50V +/-10% X7R P: 5.08mm bulk RoHS.      50pcs
1uf 50v +/-20% Y5V P: 5.08mm bulk RoHS.         50pcs

Diode

M7 DO-214AC RoHS.               100pcs
BZV55C12 Minimelf RoHS.        200pcs .
1N4937                                    50pcs
SS16  SMA Tape/reel RoHS.      50pcs
6A10  R-6 Bulk RoHS.               50pcs
SS34 SMB Tape/reel RoHS        50pcs

A capacitor only has an effect with in a certain distance from the device. The more you move away from the capacitor, the less it does. The Inductance, and Resistance (of the Trace) tend to increase. This is the reason the App notes recommend placing capacitors on the reverse side off the board - over the (power) pin. It's a trade-off between the (low Pass) filter effects of passing through a via or an elongated trace. How ever these capacitors placed out across the board do have an effect in reducing the impedance of the board ~ the power and ground planes. Assuming most of the capacitors on the board are 0.1uF by-pass caps, then placing 2uF or 4uF around the board helps the impedance.

This is a measure of a capacitor's ability to store charge. A large capacitance means that more charge can be stored. Capacitance is measured in farads, symbol F. However 1F is very large, so prefixes are used to show the smaller values.

Three prefixes (multipliers) are used, ?? (micro), n (nano) and p (pico):

?? means 10-6 (millionth), so 1000000??F = 1F
n means 10-9 (thousand-millionth), so 1000nF = 1??F
p means 10-12 (million-millionth), so 1000pF = 1nF
Capacitor values can be very difficult to find because there are many types of capacitor with different labelling systems!

Kingtronics supply series kinds of Capacitors and Diodes .All this products are sighed in our Kt Trademark, For the Kt Kingtronics trademark, We can give you the first class service. Because Kt Kingtronics has the following Strength and Advantage:

Kt Kingtronis has High quality commitment
Well-known brand Kt Kingtronics
Kt Kingtronics can provide Competitive prices
Kt Kingtronics provide Fast lead time & stock
Kt Kingtronics has Strong sales support
Kt Kingtronics ‘s Sales response quickly
Kt Kingtronics has Strong technical support
Kt Kingtronics has Excellent customer service
Kt Kingtronics Exhibitions overseas

Prezados cliente,

A Kingtronics é um importante fabricante de capacitores, diodos retificadores e Trimming Potentiometer e, aproveita a oportunidade para convidá-los juntamente com os representantes de vossa empresa para visitar nosso Stand na feira FIEE - Electronics Americas 2011 que será realizada no parque de exposições do Anhembi em São Paulo entre os dias 28 de março e 01 de Abril de 2011.

Estaremos distribuindo catálogos e amostras para homologação e será um imenso prazer recebê-los em nosso Stand. Pedimos ainda a gentileza de confirmarem a presença para que possamos atendê-los de forma mais pessoal. Esperamos estabelecer relações comerciais de longo prazo fundamentadas em um suporte técnico e comercial ágil e no fornecimento de produtos de qualidade para sua empresa.

Local: Parque de exposições do Anhembi – São Paulo, SP – Brasil.
Stand número: N67.
Data: 28 de março a 01 de abril de 2011.
Horário: Das 13:00h às 21:00h.
Entrada Franca.

Atenciosamente

A Surge Arrestor is installed between communication equipment and coaxial cable connector or between two communication equipments to protect communication equipment from damage caused by transient state voltage formed by lightning induction. It adopts quarter-wave technology, is designed according to VSW theory and frequency spectrum of lightning wave. It has features of quick reaction, big current passing capacity, wide frequency band, low VSWR, low insertion loss, easy installation and free maintenance. It can be used to meet protection requirements of various communication equipments and lightning sensitivity.

Surge arrestor series

Kingtronics sell 2-Electrode arresters and 3-Electrode arresters. 2-Electrode arresters and 3-Electrode arresters have many different kinds of types, for the detailed information please link the following Data Sheet. They will take you to www.kingtronics.com.

Dear Customer:

Wish you good business !!

As you know Chinese Lunar New Year is coming soon, most of Chinese manufacturers will have a long holiday.

But please don’t worry on this holiday issue, we Kingtronics will work as normal during this Chinese Traditional  Spring Festival.

So, please feel free to contact with our sales department by email and keep sending us orders and inquiries. We will get feedback to you as fast as normal days.

Thanks a lot for your attentions.

Wish you all the best !!

Kingtronics International Company

info@kingtronics.com

www.kingtronics.com