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Showing Results For: Crystal Units

Crystal Units

Crystal units are constructed from a high-stability piezoelectric quartz crystals that performs as a mechanical resonator. Crystal units have the capability to generate clock signals which are crucial for ICs and LSIs to function, and accomplish high stability, adjustment-free performance, and miniaturization. Currently, crystal units are used in a broad category of applications that includes mobile communication, communications satellite, TVs, automobile electronics, personal computing, and home communication appliances like DVD equipment. Therefore, with such properties, they can be used in many projects because they are capable of accomplishing many tasks. However, it is always crucial to be well informed regarding such products to ensure that they will work in your favour as you want them to. 

Internal Structure of Crystal Units

In crystal units for effectively deriving the required energy, the energy can be changed by mechanical vibration to an electrical signal. The system that supports the crystal wafer must suppress the vibration by a minimum amount. In the internal structure of the thickness-sheer mode crystal unit at the lowest displacement of the mechanical vibration on the wafer. 

Cutting Angles and Vibration Mode

The cutting angles of crystal units may vary depending upon the differences in applications. It also depends on the oscillation frequencies and electrical characteristics. The structure will include the main cutting angles, the vibration modes, frequency ranges, and capacity ratios. 

For example, the most popular type of crystal wafer which are the AT-crystal wafer, the wafer plane is designed at an angle of f 35°15’ to the Z-axis. In this situation the fundamental wave thickness-shear vibration, which is 28 MHz, the thickness of wafer is about 0.6 mm.

Cutting Angles and Frequencies

Crustal units are widely used because of their stable frequency properties but they also exhibit superior temperature characteristics. However, the units made from ordinary materials are effected by temperature changes which result in the changing of oscillation frequency as well. now the relation between the changing frequency and the cutting angle is that the level of change in frequency varies accordingly to the cutting angle. 

Frequency/Temperature Characteristics

The frequency or temperature properties of crystal units are different from those of the standard crystal oscillators installed. If the standard for frequency or temperature for the oscillation circuits is limited then some of the circuits will not meet those standards. This is because both the crystal units and oscillation circuits have temperature and frequency characteristics. Therefore, it is crucial to check the frequency/temperature characteristics of the oscillation circuits before working on them. after you check those characteristics, you can place an order for a crystal unit that can meet those frequency or temperature characteristics that can fix the differences. 

Despite taking such careful measures if more strict specifications are needed then it is better to use a temperature compensated crystal oscillator

Drive Level of a Crystal Unit

There are different mechanical oscillation modes of crystal units. However, there are some limitations imposed on the mechanical vibrations of a crystal unit. Due to this the frequency may be lost at certain temperatures or it may lead to a rise in the effective resistance of a crystal unit. Therefore, it is necessary to use the crystal unit at an appropriate drive level.

Conclusion

Crystal units may be hard to understand in terms of their structure, function, and operating conditions. However, they are not difficult to work with once you choose crystal units with the right specifications. to purchase crystal units, visit our website and choose among the wide variety of products available on our online shopping site.


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Q22FA1280002212, Epson
9 In Stock
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£ 1.08
25 +
£ 0.58
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£ 0.51
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X1E000021013212, Epson
78 In Stock
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5 +
£ 0.60
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£ 0.59
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£ 0.58
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LFXTAL003068BULK, IQD
98 In Stock
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£ 0.51
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£ 0.48
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£ 0.46
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LFXTAL003063BULK, IQD
798 In Stock
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£ 0.26
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£ 0.24
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£ 0.23
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LFXTAL003156BULK, IQD
698 In Stock
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£ 0.28
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£ 0.19
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£ 0.18
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LFXTAL003336BULK, IQD
848 In Stock
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£ 0.28
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LFXTAL052183, IQD
253 In Stock
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£ 0.48
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£ 0.44
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£ 0.41
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LFXTAL003033BULK, IQD
68 In Stock
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£ 1.24
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£ 1.21
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£ 1.17
LFXTAL002996BULK, IQD
248 In Stock
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£ 0.14
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£ 0.13
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£ 0.13
LFXTAL003335BULK, IQD
498 In Stock
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£ 0.21
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LFXTAL003115BULK, IQD
198 In Stock
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LFXTAL003118BULK, IQD
398 In Stock
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£ 0.27
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LFXTAL052187, IQD
254 In Stock
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£ 0.57
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LFXTAL003218BULK, IQD
48 In Stock
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£ 0.34
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LFXTAL003263BULK, IQD
48 In Stock
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£ 0.28
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LFXTAL003037BULK, IQD
26 In Stock
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£ 1.17
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£ 1.09
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£ 1.04
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LFXTAL003132BULK, IQD
48 In Stock
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£ 0.32
LFXTAL003515BULK, IQD
258 In Stock
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LFXTAL061670, IQD
58 In Stock
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£ 0.71
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£ 0.66
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LFXTAL061648, IQD
32 In Stock
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£ 0.82
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£ 0.70
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LFXTAL061675, IQD
34 In Stock
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£ 0.84
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£ 0.79
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LFXTAL009706, IQD
297 In Stock
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£ 0.34
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LFXTAL002995BULK, IQD
1148 In Stock
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LFXTAL003325BULK, IQD
298 In Stock
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£ 0.24
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LFXTAL003327BULK, IQD
250 In Stock
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New Items
New items
LFXTAL003523, IQD

LFXTAL003523, IQD

HC49/4H IQD Industry standard leaded package Resistance welded, hermetically sealed in an inert atmosphere, glass to metal seals on leads Model HC49/4H Model Issue number 15 Crystals Through Hole
New items
LFXTAL026392, IQD

LFXTAL026392, IQD

12SMX (B) Fundamental resonance mode Standard 7 x 5mm SMD crystal 4 pad (metal lid) A ceramic package with a seam sealed metal lid, hermetically sealed. 4 pad device metal lid. Model 12SMX-B Model Issue number 13 Crystals 7.5x5mm Ceramic case
New items
LFXTAL011301, IQD

LFXTAL011301, IQD

HC49/4H SMX Fundamental resonance mode Industry standard SMD crystal Resistance welded, hermetically sealed in an inert atmosphere, glass to metal seals on leads Lead wires are mounted onto a plastic former to create a gull wing mount Model HC49/4HSMX Model Issue number 17 Crystals SMT Metal case
New items
LFXTAL003163, IQD

LFXTAL003163, IQD

86SMX Fundamental resonance mode Crystals SMT Plastic case
New items
Q13MC3061000412, EPSON

Q13MC3061000412, EPSON

MC-306 Crystal Unit The MC series is a kHz range SMD crystal unit from EPSON. Known as a tuning fork crystal, these devices use a piezoelectric effect to produce a constant frequency. The MC-306 device is a larger crystal unit that covers a broader frequency range, making it ideal for clock and microcomputer applications. Watch Crystals 32.768kHz
New items
QTC5A15.3600FDT1I20R, QT Quarztechnik

QTC5A15.3600FDT1I20R, QT Quarztechnik

QTC5A Crystals 5x3.2mm Ceramic case
New items
24.0MHz HC49/4H 30/50/-40+85°C/30pF, IQD
New items
LFXTAL003220, IQD

LFXTAL003220, IQD

86SMX Fundamental resonance mode Crystals SMT Plastic case
New items
LFXTAL003149, IQD

LFXTAL003149, IQD

86SMX Fundamental resonance mode Crystals SMT Plastic case
New items
LFXTAL003177, IQD

LFXTAL003177, IQD

Industry standard leaded package Resistance welded, hermetically sealed in an inert atmosphere, glass to metal seals on leads Standard 2 leg HC49 package Model HC49 Model Issue number 15
New items
16.000MHz MJ/30/30/-40+85/12pF, Euroquartz

16.000MHz MJ/30/30/-40+85/12pF, Euroquartz

MJ - Euroquartz Crystals 5x3.2mm Ceramic case
New items
FOXSDLF/040, Fox Electronics

FOXSDLF/040, Fox Electronics

HC49SDLF Fundamental resonance mode Crystals SMT Metal case
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like Crystal Units and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding Crystal Units or any other product.
This depends on the Crystal Units individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for Crystal Units and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including Crystal Units.
Yes. We keep updating our stock frequently and if a product like Crystal Units is not in stock then we will let you know.