To our honored customers:

Kingtronics quartz crystal HC49S is on promotion. one month valid. The price is pretty competitive for following items. Welcome to send us your inquiry!. 

HC49S, HC49U & HC49SMD datasheet can be downloaded here http://www.kingtronics.com/quartz-crystals/

Quartz Crystal Application:

Quartz-Crystal-Application

kingtronics-Quartz-Crystal

Dear Valued customer,

How are you ?

I am Sunny coming from kingtronics, we are HK based ISO manufacturer with 2 factories since 1990.

Our products enjoy very good reputation in the market, may i know below price is attractive for you ?

Kingtronics keep regular stock for diode M7 SMA, do you have interest to buy 1 reel or 1 carton for a try ?

BAV70 SOT-23 T&R RoHS  US$0.006/pc  1kkpcs

BAV99 SOT-23 T&R RoHS  US$0.006/pc  1kkpcs

M7 SMA Diode pack info:  5kpcs per reel, 80kpcs per carton, 14kg per carton, carton size: 35*35*35cm

Kindly pls share with us your comments then we can support you better, thank you!

Kingtronics offers leaded quartz crystal HC49U, HC49S and SMD quartz crystal HC49SMD. The quartz crystal market, in general, requires hands on customer service.

Kingtronics rapid response and in depth technical support is exceptional. You will find our highly skilled, experienced sales representatives satisfactory.

More information please visit: http://www.kingtronics.com/quartz-crystals/

Quartz Crystals General Information

Quartz Crystals

Kingtronics P/N

Quartz Crystal

Size

Frequency Range

Datasheet

QKT-HC49U

Leaded Quartz Crystal

11.05x4.65x13.46mm

1.8432MHz to 200.000MHz

↓ Download PDF

QKT-HC49S

Leaded Quartz Crystal

11.05x4.65mx3.7mm

3.200MHz to 90.000 MHz

↓ Download PDF

QKT-HC49SMD

SMD Quartz Crystal

11.35x4.7x3.8mm

3.200MHz to 90.000 MHz

↓ Download PDF

1. Wishing you a sparkling Christmas and bright happy New Year! May the season bring much pleasure to you. 愿你的圣诞光彩夺目,愿你的新年灿烂辉煌!佳节快乐
 
2. At Christmas and always, may peace and love fill your heart, beauty fill your world,and contentment and joy fill your days.圣诞的祝福,平日的希冀,愿你心境祥和、充满爱意,愿你的世界全是美满,愿你一切称心如意,快乐无比。
 
3. Much joy to you in the up coming year.May the warmest wishes, happy thoughts and friendly greetings come at Christmas and stay with you all the year through.让温馨的祝愿、幸福的思念和友好的祝福,在圣诞佳节来到你身边,伴你左右。

4. Wishing you a blessed Christmas and a New Year filled with happy surprises. 祝圣诞平安,新年中有意想不到的收获!

5. It seems that Christmas time is here once again, and it is time again to bring in the New Year. We wish the merriest of Christmas to you and your loved ones, and we wish you happiness and prosperity in the year ahead.圣诞节转眼又到,又该迎接新的一年了。我们向你及你的亲人们致以最美好的圣诞祝福,愿你在新的一年里事业兴旺,幸福美满!

6. With the old wish that is ever new, may the greeting do its share toward making your Christmas a pleasant one.老的祝福,却又常新,原此祝福,使你的圣诞更加愉快圆满。

7. A wish for a truly merry Christmas and may the joy of Christmas linger in your heart all the year! 圣诞快乐!愿圣诞的喜悦整年萦绕你心间。

8. Wishing you every happiness when Christmas is near, and expressing appreciation for your cares andconcerns during the year.圣诞即将来临,祝你快乐幸福,对你一年来的关心和照顾表示衷心的感谢。

9. Christmas should be a time of banked-up fines, the scent of flowers and wine, good talk, good memories andloyalties renewed. But if all else is lacking – love will do.圣诞是这样美好的时光:炉火熊熊,花儿芬芳,醇酒飘香,殷殷祝福,美好回忆,恩爱日新。即便没有一切,只要有爱便足矣。

10. May your Christmas be filled with special moment, warmth, peace and happiness, the joy of covered ones near, and wishing you all the joys of Christmas and a year of happiness.愿你的圣诞充满温馨,祥和,与亲人团聚的快乐,祝圣诞乐陶陶,新年乐无限。

11. May the bright and festive glow of Christmas candle warm the days all the year through. Hoping you will have a wonderful time enjoying Christmas Day and wishing you a New Year that is happy in every way.愿明亮喜庆的圣诞烛光温暖一年中的每个日日夜夜,祝你欢欢喜喜度圣诞,高高兴兴过新年!

12. Warm hearted wishes for an old fashioned Christmas and a happy New Year filled with all your favorite things.传统佳节之际,献上圣诞的殷殷祝福,祝新年万事如意!

 Kingtronics International Company is a manufacturer since 1990 based in HK with ISO 9001: 2008.
 
Kingtronics with 2 factories produce trimming potentiometers, diode & bridge rectifiers, radial mlcc and radial tantalum capacitors.
 
Now we offer leaded quartz crystal HC49U, HC49S and SMD quartz crystal HC49SMD. Competitive price and short lead time.
In the new year, we hope to expand our cooperation or start our business relationship. Do you have interest?

Our quartz crystal are equivalent to ECM Electronics, Saronix-eCera (pericom), Raltron, Bomar, Citizen, AEL Crystals, ECS, CTS, Abracon...
 
Please tell me your P/N, our view our website for detail: http://www.kingtronics.com/quartz-crystals/QKT-HC49SMD.html

 

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

Crystal oscillators are used in a variety of applications. In some instances crystal oscillators may be used to provide a cheap clock signal for use in a digital or logic circuit. In other instances they may used to provide an RF signal source. In view of the fact that quartz crystals offer a very high level of Q and they are stable, crystal oscillators are often used in oscillator circuits to provide stable, accurate radio frequency signals.

There is a great number of different types of circuit that can be used for crystal oscillators, each one having its own advantages and disadvantages. One of the most common circuits used for crystal oscillators is the Colpitts configuration as shown below.

In this configuration, the crystal operates in a parallel mode. When running in this mode, the crystal should be presented with a load capacitance to operate on its correct frequency. This load capacitance is specified with the crystal and is typically 20 or 30 pF. The crystal oscillator circuit will be designed to present this capacitance to the crystal. Most of this will be made up by the two capacitors C1 and C2, although the remaining elements of the circuit will provide some capacitance.

Imagine a perfectly innocent quartz crystal that has grown to considerable size. It is lying there, at the bottom of a shallow sea, when a meterorite rudely invites itself to crash into the Earth's surface with considerable noise, pressure, heat.

There is so much pressure and heat, in fact, that only a meteorite or asteroid can cause what happens next: the quartz is shocked!

Shocked quartz is quartz that has been subjected to an event that cannot happen from normal Earthly causes and which has had its very planar structure changed. The only two known causes of shocked quartz are nuclear explosions such as the Alamo field and the incredible impact forces of meteorites or ancient asteroids. The Pleistocene/Holcene astroid impact is one of the biggest culprits. This impact occured in North America about 12,000 years ago, creating a type of brecciated rock called impact breccia.

One aspect of the impact that creates shocked quartz, however, is that high heat is not involved, or the quartz would revert to its original structure. In some shocked quartz samples, the quartz resumed its normal growth pattern within a section of planar deformities.

Brecciated rock is like gravel that is cemented together in a finely grained matrix that may or may not have the same composition as the gravel. Impact breccia is formed through extra terrestial or nuclear impact and is generally found in or around impact craters.

Quartz crystals are said to be the second most abundant substance in the Earth's crust. They are composed of silicon-oxygen tetrahedra where one oxygen molecule is shared between each two tetrahedron. The crystals grow perpetually in a six sided prism that terminates in a six sided pyramid.

Shocked quartz crystals contained shocked lamellae, or small fractures that create lines in the quartz that go along the planes of the crystal.  These planes can usually only be viewed under a microscope. \

But often, special microscope techniques, such as electron microscope, high resolution transmission electron microscopy (TEM), Focused Ion Beam (FIB) tomography, cross polarization, reflected light, thin slicing and polishing are required before the microscopic deformations can be seen.

Sometimes, the deformations actually can be examined as if they were "pressure gauges", with various deformities helping to identify the amount of pressure that it would have taken to create them. New methods of examining the samples are being used, with goals of gathering more information and images of smaller and younger samples.

The most famous sites for such impact craters include the Chicxulub structure on the Northern Yucatan Penninsula of Mexico, the Bavarian Town of NÖrdlingen, Arizona, India, and generally in the K-3 boundary between Cretaceous and Tertiary rocks.

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

About

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

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