Quartz Crystals and Oscillator are widely used in wireless and timing device, in response to customer demand, Kingtronics has expanded production line to produce the following Quartz Crystals and Oscillator,

Welcome check our new on-line catalog for more informaiton. 😊

** New ** Kingtronics-Quartz Crystals & Oscillators on –line Leaflet:https://www.kingtronics.com/pdf/Kingtronics-Kt-Quartz-Crystals-and-Oscillators.pdf

Welcome to contact us with your inquiry today!
Email: info@kingtronics.com
Skype: kingtronics.sales2

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.

Tuning Fork Crystal:

Quartz Crystal:


And finally, for video demonstrations, tutorials, and insights into our products and their applications, be sure to visit our YouTube channel www.youtube.com/@Kingtronics.

Kingtronics new catalog for Quartz Crystals and Oscillator-- HC49SMD, 3225SMD, OSC5032, 3215SMD

   As a company committed to corporate social responsibility, Kingtronics International is always eager to hear the stories of those we support through our sponsorship programs. Recently, we received a heartfelt letter from one of the students we sponsor in the Guangxi Zhuang Autonomous Region in China, and his words truly resonated with us.

In his letter, a senior high student expressed his sincere gratitude for the financial support provided by Kingtronics International. He shared how, during the winter break, he was finally able to experience a sense of relaxation and relief from the pressures of his studies. Instead of spending his days solely focused on academic pursuits, he had the opportunity to spend quality time with his family, particularly his beloved grandmother.

Despite the sweltering heat of the midday sun, this young student found immense joy in simple activities like digging sweet potatoes with his grandmother and cooking home-cooked meals together. It was a chance to connect with his roots, embrace his cultural heritage, and strengthen the bonds of family love.

Reading his words, we were deeply moved by the profound impact that our sponsorship had on his life. Beyond just providing financial assistance, we had helped create moments of happiness, warmth, and togetherness that would be cherished for a lifetime. As we reflect on his story, we are inspired to redouble our efforts in our corporate social responsibility initiatives, fueled by the belief that together, we can create a brighter, more compassionate world for all.

The Kingtronics International Team

Kingtronics Angel Charity Social Activity in 2024 Spring

Welcome to send email to us at info@kingtronics.com We believe your participation will make this activity be more better!


With more than 30 years experience as leading manufacturer, Kingtronics has been always committed ourselves to improve our technique and revolutionizing our products to satisfy the market’s rapid changing demand.

With development of the surface mount welding technology, Kingtronics has developed reflow soldering newly to replace traditional wave soldering to fit small size trimpot like RKT-3269 and RKT-3361.The reflow soldering is more environmental friendly due to the soldering material not including lead. Additionally, it has more accurate control in the soldering process to increase the quality of trimpot.

Here are the product features for RKT-3269 and RKT-3361.

Welcome to contact with us for our best support!
Skype: kingtronics.sales2
Email: info@kingtronics.com

RKT-3269 SMD Square Trimming Potentiometer

*Multiturn / Cermet /Industrial
*Rotor designed for automatic machine adjust interface
*Vertical and horizontal adjust styles
*Compatible with surface mount manufacturing processes
*RoHS compliant

Data sheet: https://www.kingtronics.com/pdf/RKT-3269.pdf

RKT-3361 Single-Turn SMD Trimming Potentiometer

*Single-Turn / Cermet / Industrial
*Rotor designed for automatic machine adjust interface
*Compatible with surface mount manufacturing processes
*RoHS compliant

Data sheet: https://www.kingtronics.com/pdf/RKT-3361.pdf 

Kingtronics new technique “Reflow Soldering” for SMD Trimming Potentiometer (Trimpot)

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
E-mail: info@kingtronics.com
Skype: kingtronics.sales
MSN: kingtronics-sales@hotmail.com
Web: www.Kingtronics.com
YouTube: www.youtube.com/c/Kingtronicskt


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