Kt Kingtronics How to Test Diodes: Silicon Diodes

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.


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!

Kt Kingtronics (King) Trimming potentiometer

Kingtronics B.I.(Beckman) Bourns Murata Tocos
RKT-3362P 25P 3362P PVC6A GF063P
RKT-3329P 62M,82M 3329P PV32P RJC06P
RKT-3329H 82P 3329H PV32H RJC06W
RKT-3006P 89P 3006P PV23P RJC097P
RKT-3386P 72P 3386P PV34P  
RKT-3296W 67W 3296W PV36W J9W
RKT-3296X 67X 3296X PV36X J9X

Kingtronics trimming potentiometers perform a variety of circuit adjustments in all types of electronic equipment. Trimmers are used in virtually every electronic market.Typical applications include measuring linear distance, angles or rotations in production equipment, industrial test and measurement equipment, and medical equipment.

Please check more Trimming Potentiometer on our website: www.kingtronics.com

Kt Kingtronics bridge rectifier

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!

Kt Kingtronics new website!

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

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!

Kt Kingtronics Zener diode

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.

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.

Kt Kingtronics 1N4007 M7 LL4148 Stock Offer

Diode Rectifier 1N4007 T&R Stock Offer US$0.0057/pc 1500Kpcs

Diode rectifier M7 DO-214AC T&R RoHS 550kpcs

LL4148 mini melf 500kpcs stock

We will begin to keep regular stock for diode rectifier M7, switching diode LL4148.......All stock are new parts.

Please check more diode and bridge rectifier on our website: www.kingtronics.com

Diode rectifier: Diode rectifier M7, S1M, LL4148, RS1M, SM4007 melf, BZV55C & ZMM55C, UF4007, 1N4001S-1N4007S, 1N4001-1N4007, 1N5391-1N5399, RL201-RL207, 1N5400-1N5408, 6A05-6A10, FR101-FR107, 1N4933-1N4937, FR151-FR157, FR201-FR207, 1N5817-1N5819, 1N5820-1N5822

Bridge rectifier: DB101-DB107,DB101S-DB107S,MB2S-MB10S,KBL4005-KBL410, KBU6005-KBU610, KBPC25005-KBPC2510, KBPC25005W-KBPC2510W, KBPC35005-KBPC3510,KBPC35005W-KBPC3510W

Kt Kingtronics Tantalum Capacitors

Tantalum Capacitors are used in electronic devices including portable telephones, pagers, personal computers, and automotive electronics.

When selecting between available tantalum capacitors, there are a number of key specifications to keep in mind when designing in a tantalum capacitor.

These include capacitance value, capacitance tolerance, dissipation factor, leakage current, and equivalent series resistance (ESR).

The designer must also consider the board interface requirements.  Tecate tantalum capacitors are available in radial leaded or surface mount configurations.

Capacitance is a measure of the energy storage ability of a tantalum capacitor, given as C = K A/D, where A is the area of the electrodes,

D is their separation, and K is a function of the dielectric between the electrodes. The formula yields a result in farads (F),

but a farad is so large that the most commonly used values are expressed in microfarads (µF = 10-6F).

Kingtronics are a professional tantalum capacitor manufacturer. We prouce dipped tantalum capacitor and SMD tantalum capacitor for 20 years.

With military level quality, short lead time, competitive price, we will be your excellent source for tantalum capacitor.

If you have inquiry, pls send email to anna@kingtronics.cn. So many thanks!

Kt Kingtronics -- ISO 9001: 2008 manufacturer

Dear Customer,

Kingtronics are ISO 9001: 2008 manufacturer for capacitor, Trimming Potentiometer, diode and bridge rectifier.

We got UL approval for bridge rectifier, the certificate No. is E347214.

SGS certification for dip tantalum capacitor and Trimming Potentiometer are available on the website.

For radial mlcc capacitor, we have unbeatable offer in the market.

Please visit www.kingtronics.com and send us inquiry.

Kingtronics International Company

Kt Kingtronics Bridge Rectifier

A bridge rectifier makes use of four diodes in a bridge arrangement to achieve full-wave rectification.

This is a widely used configuration, both with individual diodes wired as shown and with single component bridges where the diode bridge is wired internally.

For both positive and negative swings of the transformer, there is a forward path through the diode bridge.

Both conduction paths cause current to flow in the same direction through the load resistor, accomplishing full-wave rectification.

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.

Kingtronics Bridge rectifier: DB101-DB107,DB101S-DB107S,MB2S-MB10S,KBL4005-KBL410, KBU6005-KBU610, KBPC25005-KBPC2510, KBPC25005W-KBPC2510W, KBPC35005-KBPC3510,KBPC35005W-KBPC3510W.

Kt Kingtronics Strong offer 1/2W zener diode

BZX55C 5V6 1/2W zener diode, big lot price offer US$0.0053/pc

Kingtronics are ISO 9001: 2008 manufacturer and have two factories in China, Our UL certificate No. is E347214.

If you buy diodes, could you kindly send inquiry to me? Thanks one million.

1/2W BZV55C 2V7 - BZV55C 47 LL-34
1/2W BZX55C 2V7 - 8V2 DO-35
1/2W ZMM2V4 - ZMM47 LL-34
1W 1N4729A - 1N4756A DO-41
1W ZM4729A - ZM4756A LL-34

Look forward to your kind answer.