Ladies and Gentlemen, please take your attention to the new year components competition, who will be the champion?

We will see soon!

Good quality, service, price, delivery time, package... Just please choose Kingtronics!  

Strong parts: 
Diode S1M, SM4007, M7, LL4148, BZV55C, Bridge MB2S-10S, DB107S, Transistor BC847, 846...
Radial MLCC capacitors and Tantalum CapacitorsPotentiometer 3296 3006 3386 3329 3540...

Trimmer potentiometers also known as semi-variable potentiometer, They are used to measure or divide voltages, and to protect or control circuits.

Classification by structure:
Lap, Multi-turn(Kt Trimming Potentiometer: RKT-3540S,RKT-3590), Single-Joint, Double, Multi-tap Type, With Switch, Locking, Non-Locking Type, SMD Potentiometer.

Kingtronics potentiometers (Kt trimming potentiometer) include following part number: 
RKT-3006, RKT-3266, RKT-3296, RKT-3323, RKT-3329, RKT-3362, RKT-3386, 
RKT-3318, RKT-3309, RKT-065, RKT-105H, RKT-C3305, RKT-3540S, RKT-3590.

For more information, please visit

Feb 7th, 2015 afternoon, our company organized colorful Annual Festive Dinner at the Yihao hotel.

Before dinner each department has prepared a variety of cultural programs. Sissy, May, Joyce, Olivia, Twiggy, Sunny from sales department brought a very wonderful Sketch comedy & Dancing< Running Apples > and won the best program Award again. Their show received mostly applause and laughter.

After dinner, ushered in the most exciting raffle, with the prize money of steadily rising, everyone's mood has become increasingly tense. Finally everyone get a red paper containing money as a gift.

Wish it will bring good luck to us at the beginning of 2015 ! Let's work harder and make better achievement in this new year!

In January 2015, in order to meet customers demands, we prepared new Quartz Crystals and Oscillators samples to SGS lab.
After two weeks, we get the updated new RoHS 2.0 Test Report .

Below is the full list of our Kingtronics RoHS report, please have a quick view.

Active Electronics Components
1. UL certification for bridge rectifiers
2. RoHS 2.0 for diode rectifier, and specially Reach 2.0 for diode M7 ( also called SMD 1N4007)

Passive Electronics Components
1, CKT---Chip Tantalum Capacitors RoHS 2.0 certificated
2, TKT---Dipped Tantalum Capacitors RoHS 2.0 certificated
3, QKT--- Quartz Crystals and Oscillators RoHS 2.0 certification 

4, MKTAKT --- Monolithic ceramic capacitors/Axial Monolithic Ceramic capacitors/ Axial Color Ring Capacitors/ SMD Multilayer Ceramic capacitors/ Ceramic Capacitors

Above products are tested not including 155 substances of very high concern(SVHC) under Regulation(EC) No 1907/2006 of Reach.

Kingtronics products are all with RoHS certifications. Please feel free to contact with us and test our samples.

Tantalum Capacitors enjoy low leakage current characteristics; Better filtering let the leakage current extremely low.

Nearly no failure mode to tantalum capacitors, as they have self-healing capability, life time is more stable compared with Aluminum electrolytic, which only has 1000-2000Hours.

Kingtronics produce and sell Radial and Chip Tantalum Capacitors, Please refer to the following table and link :







Radial Epoxy Dipped

0.1 - 330µF

6.3V - 50V

-55 ~ +125


Chip Tantalum Capacitors

0.1 - 470µF

4V - 50V

-55 ~ +125


Low ESR Chip Tantalum Capacitors

0.1 - 470µF

4V - 50V

-55 ~ +125

Hertz (Hz)
The basic unit of measurement of frequency. It is a measurement used to denote one complete occurrence of an event in one second.
The frequency of a crystal is measured in megahertz (MHz) or kilohertz (kHz). In Kingtronics we usually usd KHz.

Measured in Hertz (Hz), it is a periodic repetition of an event within a unit of time. 
In an electrical circuit, it is the number of times a resonator plate oscillates or vibrates in one second. The most common herts for Kingtroncis QKT is 32.768KHz

Frequency Tolerance
Often called Calibration Accuracy, it is the amount of frequency deviation from the specified nominal frequency at room temperature (25°C). 

This term is expressed as a minimum and maximum percent (%) or parts per million (ppm). Kingtronics can provide -20~+70, -40~+85, -10~+60

Load Capacitance
A capacitance, specified in picofarads (pF), presented to the crystal. 

The parallel load resonant frequency (FL) is a function of the load capacitance.

For more details, please refer to below link, thank you.

Hello dear,

Kingtronics will celebrate CNY(Chinese New Year) from 19th to 22th February, 2015.

Sorry for any inconvenience to you and pls feel free to contact us by email if you have any requests. Your email will be replied as soon as we return to work.

We would like to take this opportunity to wish you and your families all the best for a happy and healthy Chinese New Year!  O(∩_∩)O~

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
Skype: kingtronics.sales


Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.

Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download

Meet Kingtronics in Moscow soon
Convention and Exhibition Centre,HongKong
Date: 13-16 October, 2019
Booth No.: 5G-C26

Meet Kingtronics in Munich soon
New Munich Trade Fair Centre, Germany
Date: 10-13 November, 2020
Booth No.: To be advised