Kingtronics Blog

Dear :

How are you? Do you buy and sell trimmer potentiometer and radial MLCC?

We are ISO manufacturer. With more than 20 years experience, we have mature technology for below radial MLCC and trimmer potentiometer.

Could you please share with your sales our cross reference? Please help me sell our trimmer and mono capacitors OK?

I will give you very good prices if you send me your inquiry! Looking forward to your inquiry and reply

Diode M7 is a general purpose rectifier, wildly used on surface mount boards. The market is very huge.

Here I would like strongly recommend our kingtronics best seller----diode rectifier M7 to you.

we are manufacturer with two factories of Trimming Potentometer, Radial multilayer ceramic capacitors and Diode rectifier.

Our kingtronics lead time is very fast, normally about 3-4 weeks, and we always keep regular stocks, high quality based on our own brand "Kingtronics".

Diode rectifier M7 can replace S1A-S1M , GS1A-GS1M, SMA, SMD 1N4007, some of our M7 features:

Flammability Classification 94V-0, for surface mounted applications, Low reverse leakage, High forward surge current capability, High temperature soldering guaranteed, you may trust our quality.

Also please kindly check our diode rectifier list on website in case you need other diode rectifier.

Kingtronics  diode bridge rectifier is a device for converting AC, or alternating current electricity into DC, or direct current. AC electricity goes from positive to negative constantly, whereas DC always flows in the same direction. AC electricity is more efficient to transmit and easier to convert into different voltages, so power is transmitted from the station to your house as AC. However, most appliances need DC current to run. A diode bridge rectifier is the most common type of power supply used to provide this current.

Kingtronics diode include: M7, 1N4001S-1N4007S, 1N4001-1N4007, 1N5391-1N5399, RL201-RL207, 1N5400-1N5408, 6A05-6A10, FR101-FR107, 1N4933-1N4937, FR151-FR157, FR201-FR207, 1N5817-1N5819, 1N5820-1N5822, LL4148, BZV55C & ZMM55C, RS1M, SM4007 melf, UF4007,1N4727A-1N4761A, BZX55C, 1N4148, 1N4148W, 1N4148WS, 1N4148WT.

If you have any inquiry, pls contact info@kingtronics.com, or go to our website: 
www.kingtronics.com .

Hello Sir,

It is a long time since last contact. I hope you are very well.

Kingtronics produce high quality diode and bridge and sell our registered brand "Kingtronics", trademark "Kt".

Above diode M7 LL4148 BZV55C S1M are our bestseller. M7 LL4148 have regular stock.

Could you please check if you have related inquiry on hand? Or, maybe you could tell me your purchaser of diodes? Many thanks!

I will be glad to talk with you via email or skype. Welcome to send me message. :-)

Waiting for your reply always and have a nice day!

Best wishes,
Selina Zhang
Sales Supervisor

Kingtronics International Company

• ISO 9001: 2008 manufacturer
• UL Approval ; SGS certified
• Tel: (852) 8106 7033
• Skype: kingtronics.sales
• www.kingtronics.com

- Diode Rectifier: S1M, RS1M, SM4007 melf, BZV55C, UF4007, 1N4007S, 1N4007, 1N5399, RL207, 1N5408, 6A10, FR107, 1N4937, FR157, FR207, 1N5822, etc...

- Bridge Rectifier: DB107, DB107S, MB10S, KBL410, KBU610, KBPC2510, KBPC3510, KBPC3510W, etc (UL Approval)...

Kingtronics manufacturer,  ISO, UL , SGS certified, since 1990.

HC49U 12.000M 20pF +/-30 PPM -10+60'C Bulk RoHS US$0.065/pc
HC49S 10.001M  20pF +/-30 PPM -10+60'C Bulk RoHS US$0.055/pc

Welcome to check our price for crystals, or diode & bridge rectifier.

Please note: diode M7 and LL4148 have stock offer.

You can vist below link to find more information about our Crystals:
http://www.kingtronics.com/quartz-crystals/QKT-HC49SMD.html

Bridge rectifiers and zener diodes are commonly used in electronic products such as computers and stereos. Bridge rectifiers are composed of a four-diode array.

These diodes convert alternating current into direct current. Bridge rectifiers have four leads, and are found in power supplies. Zener diodes are used to provide

regulated voltage for power supplies. A failure of either a bridge rectifier or zener diode prevents electronic devices from working properly.

Bridge Rectifier

• Unplug the device that contains the bridge rectifier. This ensures the bridge rectifier is without power.
• Set the digital multimeter, or DMM, to the "diode test" setting per the device's instructions.
• Test the bridge rectifier diodes. Place the DMM's two leads on two adjacent rectifier pins. The DMM will read either "OL," indicating an open circuit; or a voltage of 0.7 volts DC or less. Switch the DMM leads. An operational bridge rectifier diode shows a reading opposite of the previous reading. Perform this test on each adjacent pair of bridge rectifier pins. The bridge rectifier is faulty if the readings are the same for any of the individual diodes.

Zener Diode

• Unplug the device containing the zener diode. This ensures the zener diode has no power.
• Set the DMM to the "diode test" setting.
• Test the zener diode. Place the two DMM leads on the two zener diode leads. The DMM will read either "OL" or 0.7 volts DC. Switch the DMM leads. A working zener diode exhibits a second reading opposite of the first reading.

Do you buy Trimming Potentiometer? Come here!

Kingtronics are ISO 9001: 2008 maufacturer of Trimming Potentiometer 3296 3006 3386 3266 3590S 3329, we produce Trimming Potentiometer since 1990.

Please kindly visit our website: www.kingtronics.com, you will find our ISO certification and SGS certification on website, besides, we put Trimming Potentiometer cross guide on website.

We can provide equivalent Trimming Potentiometer of Bourns, Murata, BI Technoly, Tocos, and Vishay.

RKT-3296W        BI 67W        Murata PV36W        Tocos: J9X
RKT-3266W        BI 64W        Murata PV37W
RKT-3386P         BI 72P         Murata PV34P         Vishay 63P
RKT-3590S         Bourns 3590S

You can find complete cross list through http://www.kingtronics.com/pdf/cross-reference.pdf

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!

Since the voltage dropped across a Zener Diode is a known and fixed value, Zener diodes are typically used to regulate the voltage in electric circuits. Using a resistor to ensure that the current passing through the Zener diode is at least 5mA (0.005 Amps), the circuit designer knows that the voltage drop across the diode is exactly equal to the Zener voltage of the diode.

NEW Click here to visit Zener-Diode.co.uk for a site dedicated to zener diodes, their characteristics, usage, and other information.

Zener Diode Voltage Regulator Circuit

A zener diode can be used to make a simple voltage regulation circuit as pictured above. The output voltage is fixed at the zener voltage of the zener diode used and so can be used to power devices requiring a fixed voltage. Click here to find out more about the Zener Diode Voltage Regulator and how you go about selecting the resistor and zener diode.
NEW The above mentioned article on zener diode voltage regulators has now been updated and a handy calculator has been added to help you select the correct resistor and zener diode values and power ratings.

Zener Diodes in Series With Loads

If you have a regulated fixed voltage - say 12 Volts from a desktop PC power supply, and you want to power something requiring a lower voltage, it is possible to simply place a zener diode in series with the load device. You would choose a diode with a zener voltage equal to the supply voltage minus the voltage drop across the load.

For example, if you have a 1 Watt 6 Volt lightbulb to power from a 12 Watt regulated power supply, a 6.2V zener diode could be placed in series with the bulb giving the bulb 5.8V, or you could overpower the bulb a little using a 5.6V zener diode and dropping 6.4V across the bulb. Heat would be generated in the zener diode so it is essential to calculate the power lost in it so a suitably rated diode could be chosen.

Using a 5.6V zener diode, and knowing the bulb draws a current of around one-sixth of an Amp, we can calculate the power loss in the diode (with Ohm's Law) to be just under 1 Watt. Therefore a standard 1.3 Watt zener diode should be up to the job.

Circuits with Zener Diodes

Zener diodes are key components in the circuits presented in the following articles: Make a Simple Battery Status Monitor, LM741 Voltage Indicator, and High Capacity Alternative to 9V Battery.