Crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a precise frequency. The most common type of piezoelectric resonator used is the quartz crystal, so oscillator circuits incorporating them became known as crystal oscillators.

Quartz crystals most are used for consumer devices, inside test and measurement equipment, such as wristwatches, clocks, radios, computers, cellphones, counters, signal generators, and oscilloscopes.

Kingtronics produce below Quartz Crystals and Oscillators, with good price and quality. Welcome check our product link and send your inquiry to us! 

Kingtronics P/N

Type

Size

Frequency Range

QKT-HC49U

Leaded Quartz Crystal

11.05x4.65x13.46mm

1.8432MHz to 200.000MHz

QKT-HC49S

Leaded Quartz Crystal

11.05x4.65mx3.7mm

3.200MHz to 90.000 MHz

QKT-HC49SMD

SMD Quartz

Crystal

11.35x4.7x3.8mm

3.200MHz to 90.000 MHz

QKT-3225SMD

SMD Quartz

Crystal

3.2x2.5mm

12.000 MHz to 54.000 MHz

QKT-OSC3225

SMD Oscillator

3.2x2.5mm

1.000MHz to 125.000 MHz

QKT-OSC5032

SMD Oscillator

5.0x3.2mm

1.000MHz to 125.000 MHz

QKT-OSC7050

SMD Oscillator

7.0x5.0mm

1.000MHz to 150.000 MHz

Quartz Crystal Advantages:
1, Good stability, small changes;
2, Good accuracy, high precision;
3, Low power consumption, small excitation power;
4, Fixed (non-adjustable).

Quartz Crystal Structure:

When you order Quartz Crystal Resonator, you have to at least keep 5 essential aspects.
Package Type,  Frequency, Load Capacitance, Frequency Tolerance,Operating Temperature

Examples : 
QKT-HC49U, 16.000MHz,  20pF, +/-30ppm, -20~+70
QKT-HC49S, 12.000MHz,  20pF, +/-20ppm, -10~+60
QKT-HC49SMD, 10.000MHz, 20pF, +/-30ppm, -20~+70
QKT-3225SMD, 26.000MHz, 20pF, +/-10ppm, -20~+70

Free samples are available and welcome your enquiry and test our samples.

If you need more products information, please check : 
www.kingtronics.com/quartz-crystals/QKT-HC49S.html

Kingtronics offers passive leaded quartz crystal HC49U, HC49S, SMD quartz crystal HC49SMD and 3225 SMD Crystals.
We also produce active 3225, 5032, 5070 SMD Oscillators.

The passive quartz crystal are ideally suited designed for Bluetooth wireless communication sets, HDD, DSN, PDA,GPS,Digital Tuner, Wireless LAN and mobile phones. 
The Active SMD Oscillators are ideally suited for disc-drives, NB, Networking, GPS/Navigation, BlusTooth, Ethernet, ADSL, VDSL, Fiber chaneel hand-held electronics products. 

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

Quartz Crystal Resonator and Crystal Oscillator

Kingtronics P/N

Quartz Crystal

Size

Frequency Range

QKT-HC49U

 Leaded Quartz Crystal

 11.05x4.65x13.46mm

 1.8432MHz to 200.000MHz

QKT-HC49S

 Leaded Quartz Crystal

 11.05x4.65mx3.7mm

 3.200MHz to 90.000 MHz

QKT-HC49SMD

 SMD Quartz Crystal

 11.35x4.7x3.8mm

 3.200MHz to 90.000 MHz

QKT-3225SMD

 SMD Quartz Crystal

 3.2x2.5mm

 12.000 MHz to 54.000 MHz

QKT-OSC3225

 SMD Oscillator

 3.2x2.5mm

 1.000MHz to 125.000 MHz

QKT-OSC5032

 SMD Oscillator

 5.0x3.2mm

 1.000MHz to 125.000 MHz

QKT-OSC7050

 SMD Oscillator

 7.0x5.0mm

 1.000MHz to 150.000 MHz

If you need more products information, please check : 
www.kingtronics.com/quartz-crystals/QKT-HC49U.html

Kingtronics offers high quality quartz crystal at incredibly aggressive prices. 
The 3225SMD series is an industry standard crystal package. 3225SMD is a low cost, low profile timing option for applications where cost is critical.

The 3225SMD is available in SMD packaging only. We also can produce quartz crystal in different size,such as 5070SMD, 6035SMD, 5032SMD, 4025SMD, 2025SMD, 2016SMD, 5032SMD Glass sealed, 3225SMD Glass sealed.

SPECIFICATIONS

Holder Type

3.2x2.5mm Ceramic Surface Mount

Frequency Range

12MHz to 54MHz

Frequency ToleranceF)(at25

±10ppm to ±30ppm

Frequency Drift

±10ppm to ±30ppm(See Notes)

Operating Temperature Range

-20 - +70 / -40 - +85

Storage Temperature Range

-40 - +85 /-55 - +125

Aging25

±3ppm/ year max.

Shunt CapacitanceC0

3pF max.

Drive Level

10μw (100μW max.)

Insulation ResistanceRs

500 Mega ohms Minimum at D.C100V

Load CapacitanceCL

Suggested by customer

Notes:±10±20±30ppm (-20 to +70)±20±30±50ppm (-40 to +85) or depends on customer

If you need more details, please check:
www.kingtronics.com/quartz-crystals/QKT-3225SMD.html

Quartz Crystal

QKT-3225SMD

SMD Quartz Crystal

3.2x2.5mm

12.000 MHz to 54.000 MHz

↓ Download PDF

Crystal Oscillator

QKT-OSC3225

SMD Oscillator

3.2x2.5mm

1.000MHz to 125.000 MHz

↓ Download PDF

QKT-OSC5032

SMD Oscillator

5.0x3.2mm

1.000MHz to 125.000 MHz

↓ Download PDF

QKT-OSC7050

SMD Oscillator

7.0x5.0mm

1.000MHz to 150.000 MHz

↓ Download PDF

Application:  
* Widely used in :Communications, such as ADSL, routing, Intercom, IP telephone, WiFI, GPS, RF module,etc.;
* Security, such as monitoring cameras, Entrance guard systems, anti-theft devices, etc.;
* Consumers, such as car stereos, DVB, smart metering, remote control toys, MP3, MP4, wireless microphones, digital frame, card reader, etc.

quartz crystal resonator depends on the piezo-electric effect to work. This effect converts a mechanical stress in a crystal to a voltage and vice versa. In this way the piezo-electric effect converts the electrical impulses to mechanical stress which is subject to the very high Q mechanical resonances of the crystal, and this is in turn linked back into the electrical circuit.

The quartz crystal can vibrate in several different ways, and this means that it has several resonances, all on different frequencies. Fortunately the way in which the quartz crystal blank is cut from the original crystal itself can very significantly reduce this. In fact the angle of the faces relative to the original crystal axes determines many of its properties from the way it vibrates to its activity, Q, and its temperature co-efficient. There are three main ways in which a crystal can vibrate: longitudinal mode, low frequency face shear mode, and high frequency shear. A cut known as the AT cut used for most crystals used in traditional radio and electronics circuits uses the high frequency shear mode.

Vibrational modes of a quartz crystal resonator
(For the sake of clarity, the movements have been greatly exaggerated)

Quartz is used in the making of sandpaper, optics, glass, liquid filters, circuit boards, computer components, cement, mortar, and jewelry. Quartz crystals are also piezoelectric meaning when an electrical current passes through them they vibrate a small amount. Time can be measured from the vibrations of the quartz crystals so quartz crystals are often used in clocks.

Quartz crystals may either operate in a fundamental mode or in an overtone mode. Below frequencies of around 25 MHz crystals are normally designed to operate in their fundamental mode, whereas above this they will normally be designed for overtone operation, although with manufacturing techniques improving higher frequency crystals are becoming available. The mode is therefore an important element of the crystal specification.

 

 

 

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

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

Meet Kingtronics in Moscow soon
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Date: 13-16 October, 2019
Booth No.: 5G-C26

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