Diode is a dual electrode electronic component with asymmetric conductivity. When conducting forward, there is an infinitesimal resistance between its two electrodes (anode and cathode), while in reverse, there is an infinitesimal resistance, meaning that current is only allowed to flow through the diode in a single direction.
In 1874, German physicist Karl Braun discovered the rectification ability of crystals. Therefore, the first generation diode developed in 1906, the "cat whisker diode," was made from mineral crystals such as galena. Early diodes also included vacuum tubes, which had two electrodes, an anode, and a thermal cathode. After the discovery of semiconductor performance, diodes became the world's first semiconductor device. Nowadays, most diodes are produced using silicon, and other semiconductor materials such as selenium or germanium are sometimes also used. The most common structure currently is a semiconductor performance junction chip connected to two electrical terminals through a PN junction.

Function
A diode has two terminals, anode and cathode, and current can only flow in a single direction. That is to say, current can flow from the anode to the cathode, but not from the cathode to the anode. The application of the unidirectional characteristic possessed by diodes is commonly referred to as the "rectification" function. In a vacuum tube, the voltage applied between the electrodes can allow hot electrons to travel from the cathode to the anode, thus having a rectifying effect. The conversion of alternating current to direct current, including the modulation of radio signals by radio receivers, is achieved through rectification.

Due to its characteristic of blocking forward and reverse flow, diodes can be thought of as electronic versions of check valves. However, in reality, diodes do not exhibit such perfect switching performance, but rather exhibit complex nonlinear electronic characteristics determined by specific types of diode technology. Generally speaking, the diode will only start working when the threshold voltage is reached in the forward direction (this state is called forward bias). The voltage drop at both ends of a forward biased diode is only slightly related to the current and is a function of temperature. Therefore, this feature can be used for temperature sensors or reference voltages.

The nonlinear current voltage characteristics of semiconductor diodes can be changed by selecting different semiconductor materials and doping different impurities to form impurity semiconductors. In addition to being used as a switch, diodes with changed characteristics also have many other functions, such as adjusting voltage (Zener diodes), limiting high voltage to protect circuits (avalanche diodes), radio tuning (varactor diodes), generating radio frequency oscillations (tunnel diodes, Gunn diodes, IMPATT diodes), and generating light (light-emitting diodes).

In semiconductor diodes, there are types that utilize the PN junction effect of P-type and N-type semiconductor interfaces, as well as the Schottky effect generated by metal semiconductor bonding to achieve rectification. If it is a PN junction diode, it is the anode on the P-type side and the cathode on the N-type side.

Kingtronics Hot product line【Diode Rectifier,Transistor】-1N4148W, BZX84C,ES2A, RS1A, SS12,SS22, US1A: https://www.youtube.com/watch?v=Si3wc4ZnXyE

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 Aluminum electrolytic and solid polymers, both have advantages and disadvantages when comparing to one another. Designers need to be aware of these differences when determining which capacitor type is best suited for use in their application.

The most notable difference between aluminum electrolytics and polymers is their electrolyte. Aluminum electrolytics have a liquid electrolyte while polymers have a solid electrolyte. These differences play a major role in the characteristics of each type of capacitor.

The solid polymer electrolyte gives the polymer capacitors advantageous characteristics over liquid aluminum electrolytic capacitors.

The advantages are as follows:
o Lower ESR at high frequency
o Lower D.F. / tan δ
o Higher ripple current ratings
o Stability over temperature
o Wider operating frequency range
o Long life

Following product list of Kingtronics Solid Polymer Electrolytic Capacitors for your reference.
We have very competitive price and fast lead time.
Welcome to contact us for your project inquiries. Let us do our utmost to provide the best offer to you.

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 Kingtronics Motor film capacitor could be widely used in applycation as Induction motors, Compressors, Freezers industry.

Following are our product list & Features of FKT-CBB60, FKT-CBB61, FKT-CBB65, if you have any inquiry for Motor capacitors, feel free to share your inquiry with Kingtronics, let us do best to fight and check best solution & offers for you!  J
Features:
1. Low D.F. (dissipation factor)
2. HIGH I.R. (insulation resistance)
3. High safety and high reliability
4. Anti-Striking current

Applications: Refrigerators, Freezers, Pumps, industrial , Air conditioners, Washing machines, Induction motors, Compressors, etc.

Film Capacitor product page: https://www.kingtronics.com/Film-Capacitors/index.html
Kingtronics Kt Film AC Motor Capacitors with ISO CE certificate: https://www.youtube.com/watch?v=iBCReKaTw-U

Contact us today for best offer:
E-mail: info@kingtronics.com
Skype: kingtronics.sales2

 In the realm of power supplies, supercapacitors have traditionally found their home in high-power and large-scale industrial applications. Their remarkable capacitance values, often reaching thousands of farads, and rapid charging and discharging rates have made them invaluable in providing bursts of energy when needed. However, the landscape is rapidly evolving, and supercapacitors are now making their mark in products of all sizes, particularly in the realm of portable devices.

The Battery Revolution: Supercapacitors are not your average capacitors; they are more akin to batteries due to their ability to store substantial amounts of electrical energy for extended periods. As technology continues to advance, it is becoming increasingly clear that supercapacitors are poised to replace rechargeable batteries in a multitude of consumer products. From computers and digital cameras to mobile phones and other handheld devices, the reign of traditional batteries is facing a formidable challenge.

Key Advantages of Supercapacitors

High Capacitance Values:

Supercapacitors boast capacitance values that can reach into the thousands of farads, providing a substantial reservoir for electrical energy storage.

Rapid Charging and Discharging Rates:

One of the standout features of supercapacitors is their ability to charge and discharge at remarkable speeds. This makes them ideal for applications where quick bursts of energy are crucial.

Battery-Like Behavior:

With their capacity to store large amounts of energy for extended periods, supercapacitors behave more like batteries than traditional capacitors. This characteristic is reshaping the landscape of energy storage in electronic devices.

Global Research and Development:

Across the globe, numerous countries are actively investing in research and development initiatives centered around supercapacitors. These efforts are aimed at unlocking new potentials and expanding the range of applications for this cutting-edge technology.

Some of the key players in this domain include:
1. MAXWELL and Ioxus (United States):

Pioneering research and development in the United States, these companies are at the forefront of supercapacitor innovation.
2. EL NA and PANASONIC (Japan):

Japanese manufacturers are making significant contributions to advancing supercapacitor technology, ensuring its integration into a wide array of products.
3. LS Mtron and Vina Technology (South Korea):

South Korea has emerged as a hub for supercapacitor development, with companies like LS Mtron and Vina Technology playing key roles.

4. Kingtronics (Hong Kong):

Positioned as a notable Hong Kong brand, Kingtronics is making strides in the field of supercapacitors, offering a promising alternative in this rapidly evolving landscape.

Kingtronics (Kt) Super Capacitors

The evolution of supercapacitors from being confined to high-power and industrial applications to becoming potential replacements for rechargeable batteries in everyday consumer devices is a testament to their versatility and power. As research and development initiatives continue to unfold across the globe, the future seems bright for supercapacitors, promising a paradigm shift in how we store and utilize electrical energy. With companies like Kingtronics making noteworthy contributions, the era of supercapacitors is on the horizon, ready to reshape the power supply landscape across industries and consumer products alike.

Contact us today for best offer: info@kingtronics.com Skype: kingtronics.sales2

Kingtronics provides stable supply and complete product line for Quartz Crystals and Oscillator as follows series products, welcome to contact us if any request. J

E-mail: info@kingtronics.com
Skype:kingtronics.sales2

Kingtronics Quartz Crystal QKT HC49S QKT HC49SMD QKT OSC7050: https://www.youtube.com/watch?v=c84yvjyOEbY

Kingtronics-Quartz Crystals & Oscillators Leaflet: https://www.kingtronics.com/pdf/Kingtronics-Kt-Quartz-Crystals-and-Oscillators.pdf

Application:
Bluetooth wireless communicaation sets, HDD, DSN, PDA,GPS,Digital Tuner, Wireless LAN and mobile phones.
NoteBook, Networking, GPS/Navigation, BlusTooth, Ethernet, ADSL, VDSL, Fiber chaneel hand-held electronics products.

Features:
Low cost
Wide frequency range
Good aging and temperature stability
PB – free & ROHS Compliance
Metal Models
Tight tolerance / stabilities available

To suppress radio frequency interference, you’ll have an extraordinary choice for film Capacitor! 

Kingtronics FKT-MX X2 Metallized Polypropylene Film Capacitor obtains VDE , ENEC and UL certificate, and also has received wide positive feedbacks from our global market!

Also, we can replace the below brands with better offer and lead time!

*Characteristic:
Rated capacitance: from 0.0047μF to 10.0μF
Rated voltage: AC 275/305/310 V
Capacitor class and subclass: X2
Climatic category: 40/110/56
Tolerance of rated capacitance: ±10% (K); ±20% (M)

*Kingtronics FKT MX X2 Metallized Polypropylene Film Capacitors with VDE, UL, ENEC certification: https://www.youtube.com/watch?v=iF7wfQhmB0M

Welcome to share inquiry with us!

E-mail: info@kingtronics.com 
Skype:kingtronics.sales2

Tact Switches have a small footprint and come in many sizes and gram forces, can be used in many consumers electronic devices.

Much appreciate received lots compliments from our worldwide valuable customers on Google Business!

★★★★★ Competitive Prices
★★★★★ Fast Delivery
★★★★★ High Quality
★★★★★ Customer Service Quick Feedback
 

Especially we are almost the most competitive supplier of SMD aluminum electrolytic capacitor in global market, come to us for enjoy more benefits earlier.

Kindly remind Kingtronics will have Easter holidays from 19th-22nd April. If you have any queries, please feel free to email us and enjoy the 5 stars service !

Kingtronics closes from 30^th June to 2^nd July for HK holiday, during these days, let’s YELL for FIFA 2018 with abandon. (づ｡◕ᴗᴗ◕｡)づ

Email us for any component demands, we respond at the earliest possible time after resuming work. (◕ᴗ◕✿)

The whole Kingtronics members feel much grateful for all customers' long-term support. Wish lasting prosperity and success.

Let's expect more communication on cooperation, never hesitate to seek timely support from us.