Crystal Oscillators

A crystal oscillator is a electromechanical device, it's also an electronic oscillator circuit. The main purpose of an oscillator is to make use of a quartz crystal as a frequency. Crystal oscillator’s use the mechanical resonance of a vibrating crystal, of which is made up from a piezoelectric material. This process allows the oscillator to create and obtain an electric signal with a high precision frequency.


Where Crystal Oscillators are used


This type of frequency is mostly used to keep track of time within a wrist watch or a digital integrated circuit, to provide a stable clock signal. This is where this signal gained it's commonly referred to name "clock signal". This clock signal is used to synchronise the operation of the other electronic devices that make up the system the oscillator is housed in. An oscillator is also used to help stabilise frequencies for radio transmitters and receivers, used in clocks (clock oscillator), computers and cell phones. Quartz crystal can also be found inside test and measurement equipment such as counters, signal generators and oscilloscopes.


A little more information on Crystal Oscillators


  • Crystal oscillators are known to be superior to ceramic resonators, this is for a multitude of reasons. They offer higher stability, they're higher quality and are considerably lower in cost and more compact in size.

  • Quartz crystals are manufactured for frequencies that range from a few tens of kilohertz all the way up to hundreds of megahertz.

Types of Crystal Oscillators


  • TCXO - These are used when a temperature stability is needed and can't be attained through a standard crystal oscillator (XO) or a voltage controlled crystal oscillator (VCXO).

  • OCXO - This is an oven controlled crystal oscillator, a type of oscillator that achieves the highest frequency stability that a quartz crystal can. They are designed to operate inside a temperature controlled oven, they are physically larger and require more power to run.

  • VCXO - This is a voltage controlled crystal oscillator, it controls the change in crystal output by using a DC (direct current) voltage.

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Description Price Oscillator Type Output Frequency Output Level Frequency Stability Mounting Type Package Type Minimum Operating Supply Voltage Maximum Operating Supply Voltage Pin Count Length Minimum Operating Temperature Width Height Maximum Operating Temperature
RS Stock No. 173-2544
Mfr. Part No.Q3306JA21014001
BrandEpson
MYR10.737
Each (On a Reel of 250)
units
XO 32MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS Stock No. 478-6269
Mfr. Part No.Q3306JA21014001
BrandEpson
MYR32.06
Each
units
XO 32MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 4.45mm 70°C
RS Stock No. 173-2586
Mfr. Part No.Q3309CA40013301
BrandEpson
MYR12.044
Each (On a Reel of 250)
units
XO 10MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 478-5115
Mfr. Part No.Q3309CA40013301
BrandEpson
MYR18.85
Each
units
XO 10MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 478-5187
Mfr. Part No.Q3309CA40041701
BrandEpson
MYR23.00
Each
units
XO 1MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 667-6688
Mfr. Part No.Q3851CA00003812
BrandEpson
MYR16.07
Each
units
XO 75MHz CMOS ±50ppm Surface Mount SMD - - - - -10°C - 1.2mm 70°C
RS Stock No. 173-2591
Mfr. Part No.Q3309CA40041701
BrandEpson
MYR17.882
Each (On a Reel of 250)
units
XO 1MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2608
Mfr. Part No.Q3851CA00003812
BrandEpson
MYR12.36
Each (On a Reel of 250)
units
XO 75MHz CMOS ±50ppm Surface Mount SMD - - - - -10°C - 1.2mm 70°C
RS Stock No. 478-6124
Mfr. Part No.SG8002JAPCB48MHZ
BrandEpson
MYR18.61
Each
units
XO 48MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 4.45mm 85°C
RS Stock No. 667-6561
Mfr. Part No.Q33519E40005412
BrandEpson
MYR8.26
Each
units
XO 12MHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 1.05mm 85°C
RS Stock No. 173-2502
Mfr. Part No.Q3102JC01000111
BrandEpson
MYR8.355
Each (On a Reel of 250)
units
XO 32.768kHz CMOS ±50ppm Surface Mount SMD - - - - -40°C - 2.65mm 85°C
RS Stock No. 173-2560
Mfr. Part No.Q3204DC21033300
BrandEpson
MYR10.755
Each (In a Tube of 35)
units
XO 2MHz CMOS ±50ppm Through Hole PDIP - - - - -20°C - 5.3mm 70°C
RS Stock No. 173-2595
Mfr. Part No.Q3309CA40004601
BrandEpson
MYR17.196
Each (On a Reel of 250)
units
XO 24MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 205-3476
Mfr. Part No.X1G004171001812
BrandEpson
MYR4.47
Each (On a Reel of 250)
units
Crystal Oscillator 12MHz CMOS ± 50ppm - Reel - - - - - - - -
RS Stock No. 205-3468
Mfr. Part No.X1G003931000412
BrandEpson
MYR19.67
Each
units
Clock Oscillator 125MHz CMOS ± 50ppm - Reel - - - - - - - -
RS Stock No. 478-5238
Mfr. Part No.Q3309CA40010812
BrandEpson
MYR21.41
Each
units
XO 25MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2439
Mfr. Part No.Q33519E40003912
BrandEpson
MYR7.259
Each (On a Reel of 250)
units
XO 10MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.05mm 70°C
RS Stock No. 173-2597
Mfr. Part No.Q3309CA40029801
BrandEpson
MYR17.196
Each (On a Reel of 250)
units
XO 3.6864MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2588
Mfr. Part No.Q3309CA40003401
BrandEpson
MYR17.196
Each (On a Reel of 250)
units
XO 12MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C
RS Stock No. 173-2587
Mfr. Part No.Q3309CA40006201
BrandEpson
MYR17.196
Each (On a Reel of 250)
units
XO 125MHz CMOS ±50ppm Surface Mount SMD - - - - -20°C - 1.4mm 70°C