Kingtronics Blog

Kingtronics high-energy tantalum capacitor is fully-sealed with polar radial leads and represents a new level of technology.
It's characterized by excellent electrical performance, high reliability, long usage life and high energy density in unit volume.

Application Construction:

NPO: Temperature compensation type, have little or no change in
capacitance with variation in temperature. Hence, they are used in
radio-frequency oscillators, precision timing circuits, ultra stable
amplifiers, etc.
X7R: Temperature stable type for by-pass and decoupling in radio
and television receivers, computers servo systems. Audio tone, and
coupling, etc., where moderate capacitance variations are permissible
and dissipation factor is not critical.
Z5U/Y5V: General type for by-pass and filtering applications.

Type: b, C1, , C2(inside kinked), C3...
standard LL:10mm+/-1mm. Max LL:25mm

As you know, general diode rectifier M7, 1N4007 and switching diode LL4148 are very common and popular in the market. This year, we win really good diode orders.

To support customers better, Kingtronics prepare stocks on offer. So the price and lead time are very attractive.

Pls note all the parts are NEW and Original. First come, first served. We will replenish stock once use out. Do you have any order plan now?

Stock status:

Axial Diode 1N4007 DO-41 T&R RoHS. 1,500,000pcs in stock (US$ 0.0057/pc)

SMD Diode M7 DO-214AC T&R RoHS. 550, 000pcs in stock

Switching Diode LL4148 LL-34 T&R RoHS. 2,000,000pcs in stock

Pls visit our website www.kingtronics.com for details.

In 1938, German scientist Walter Schottky developed a diode having a metal to semiconductor junction.

A Schottky diode, like other solid-state diodes, conducts electrical current in one direction.

It can operate at higher speeds than typical silicon diodes.

Advantages

Small pockets of electric charge build up in a typical silicon diode, slowing down its ability to turn current off.

A Schottky diode can operate hundreds of times faster since it avoids build up of electric charges.

It also has less than half the voltage drop conducting in the forward direction than a silicon diode.

Applications

Engineers use Schottky diodes in very high-frequency circuits, such as microwave transmitters.

Schottky diodes also see use in switching power supplies and solar battery charging systems.

Kingtronics produce and sell schottky diode 1N5817-1N5819, 1N5820-1N5822. if you have inquiry, pls send email to anna@kingtronics.cn.

Silicon diodes act as one-way valves for electrical current, allowing it to flow in only one direction. Like any electronic component,

diodes can fail from excessive voltage or current. Fortunately, diodes are simple to test, needing only a good multimeter to check them.

If you set the multimeter to read resistance and put the probes across the diode, you should read a low resistance one way and high resistance

with the probes reversed. A shorted diode will read low resistance both ways, and a blown diode will read high resistance both ways.

Instructions

1.Turn off the power to your circuit or equipment. Let the equipment sit for at least 30 minutes before removing the case or cover to allow the power supply to discharge。

2.Locate the diodes you want to test. They are typically small, two-lead parts with a stripe on the body to indicate the diode's cathode side.

3.Turn the multimeter on and turn the function knob so it points to the resistance setting. Hold the plastic body of the probes and are not touching the metal tips.

Touch the tip of the positive probe to one side of the diode and the negative probe to the other side. Read the resistance measurement and write it down.

Reverse the probes so they're touching the opposite sides of the diode. Write down the resistance you read . The higher resistance should be at least 10

times greater than the lower one. If it's less than five, the diode is very likely bad.

Kingtronics produce many types of diode rectifier,such as silicon diode, switching diodes, fast recovery diodes zener diodes.... Pls visit our updated website www.kingtronics.com for the details.

Any inquiry, pls send to anna@kingtronics.cn . Many thanks!

A tantalum capacitor is a type of capacitor with parts made out of the metal tantalum. Because they offer several advantages over older and more standard aluminum capacitors, tantalum capacitors are becoming increasingly popular and are often included in newer circuit designs.

IdentificationA capacitor is an electronic component made out of two conductive plates separated by an insulating material. It is used to store energy.

Tantalum

Tantalum is a rare, hard, heavy, blue-grey metal. It is highly resistant to corrosion and is mostly chemical inert, making it a durable

metal for electronic components. Tantalum capacitors are made from a small amount of mostly pure tantalum powder.

Uses

Tantalum capacitors are used in situations where the capacitor must hold power for a longer period of time.

They are also used with power supplies and in environments that operate at high temperature.

Durability

Because of the way tantalum capacitors are constructed and the natural resistance to corrosion of tantalum,

tantalum capacitors are exceptionally durable. They do not have any parts that wear out with use.

Polarity

One disadvantage to tantalum capacitors is that they are polar devices. They can only operate with power

flowing through them in one direction, unlike some other types of capacitors.

If you have inquiry about tantalum capacitor, pls send inquiry to anna@kingtronics.cn.

Moreovedr, our website is updated. Pls visit our new website www.kingtronics.com for our ISO 9001: 2008 certification, UL certification, SGS certification.

Finding a Bridge Rectifier? How to find the best Bridge Rectifier? Do nothing before you visit our site! We kingtronics is Specialty in design,manufacture of bridge rectifier! We are your best choice.

The bridge rectifier is the most commonly used full wave rectifier circuit for several reasons, one advantage of a bridge rectifier over a conventional full-wave rectifier is that with a given transformer the bridge rectifier produces a voltage output that is nearly twice that of the conventional full-wave circuit.

(1) It does not require the use of center-tapped transformer, and therefore can be coupled directly to the ac power line, if desired.
(2)Using a transformer with the same secondary voltage produces a peak output voltage that is nearly double the voltage of the full wave center-tapped rectifier. This results in the higher dc voltage from the supply.

Kingtronics have UL certification for bridge rectifier, pls see picture of our products, we are glad to get your inquiries!

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!

Zener diode transfers current forward and backward, while traditional diodes are only capable of transferring current forward.

Many different electronic systems use Zener diodes to control their circui's voltage levels.

While there are several ways of doing this, Zener diodes provide efficient voltage regulation without damaging the diode itself.

How Zener Diodes Work
Zener diode acts like a regular diode as current moves in a forward direction in its circuit.

However, when a large enough voltage is applied to the diode in the reverse direction, it travels against the current from the output to the input.

Zener diodes can limit the amount of current that passes through them so that the voltage going backward limits the voltage going forward.

Advantages
Zener diodes are very small and can be integrated into virtually any electronic device, especially small circuits that cannot accommodate other forms of voltage regulation technology.

Zener diodes are also relatively inexpensive and are compatible with most other systems, making them the preferred voltage regulation device.

Hi, dear, do you want to know what size bridge you need to use when replacing? Here I want to share with you my experience.

I get variations of this question quite often, such as: I don't see the bridge used in the Atari AC power "brick"....

My Tempest manual says I need a MDA3501 bridge & I can't find one....What's a suitable replacement for my T3501... and so on.

Like diodes & many other components, the key is usually in the part number. I have added more info on the Parts Page beside each one listed to better aid you.

But I will put a brief note here, as well. In both the examples cited above the bridge is ...from the part number.... a 35[amp]01[ 100 volt].

Generally speaking the first digit/s will refer to the amperage that the bridge is capable of handling & the ending digit/s the voltage it is capable of handling.

As Scotie would say...if you put a 2501 in place of the cited bridge, she's gonna blow!... since the bridge is only able to handle up to 25 amps of current even though the 100 volts is sufficient.

You could go to an "02" 200 volt, "04" 400 volt or higher & still end up with a blown bridge. You need to at least meet both amperage & voltage of the original when replacing.

A good replacement for the cited bridge would be a 3502... disregarding mrf's prefix or suffix.... for 35 amps & capable of handling 200 volts before popping a leg.

Much like sister components.... diodes, capacitors & resistors, you can safely go beyond specs, but not below.

1N4001 [1A50v] can be replaced by any in the series up to 1N4007 [1A1000V]
100uF 160V cap can be replaced by a 100uF 200V or better cap
220 ohm 1/4w resistor can be replaced by a 220 ohm 1/2w resistor

We Kingtronics are a professional bridge rectifier manufacturer. And we have got ISO9001:2008 Certification and UL certification.

If you have inquiry for our bridge rectifier, pls send email to info@kingtronics.com thanks!

There are a number of different electronic devices which tend to be called diodes.

Although they're made differently they all have three things in common.

They have two leads like a resistor.
The current they pass depends upon the voltage between the leads.
They do not obey Ohm's law!

As an example we will use a typical diode called a pn-junction. This allows us to explain behaviour of diodes.

The function of a diode is to allow current in one direction and to block current in the opposite direction.

The terminals of a diode are called the anode and cathode. There are two kinds of semiconductor diodes: a P-N junction diode, which forms an electrical barrier at the interface between N- and P-type semiconductor layers, and a Schottky diode, whose barrier is formed between metal and semiconductor regions.

Remember, however, that there are other sorts of diodes which are built differently but show the same general behaviour.