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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Part Details Brand Standard Frequency Oscillator Type Output Frequency Frequency Stability Package Type Output Level Minimum Operating Supply Voltage Mounting Type Maximum Operating Supply Voltage Pin Count Length Width Minimum Operating Temperature Height Maximum Operating Temperature Dimensions Series Resistance
CTS, 25 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, TTL, 4-Pin SMD CB3LV-3I-25M0000
  • € 1.52
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  • RS Stock No. 178-1981
  • Brand CTS
  • Mfr. Part No. CB3LV-3I-25M0000
CTS - Clock Oscillator 25 MHz ±50ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 27 MHz Clock Oscillator Crystal Oscillator, ±25ppm HCMOS, TTL, 4-Pin SMD CB3LV-5I-27M0000
  • € 1.64
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  • RS Stock No. 178-2010
  • Brand CTS
  • Mfr. Part No. CB3LV-5I-27M0000
CTS - Clock Oscillator 27 MHz ±25ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 40 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, TTL, 4-Pin SMD CB3LV-3I-40M0000
  • € 1.52
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  • RS Stock No. 178-1991
  • Brand CTS
  • Mfr. Part No. CB3LV-3I-40M0000
CTS - Clock Oscillator 40 MHz ±50ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 25 MHz Clock Oscillator Crystal Oscillator, ±25ppm HCMOS, TTL, 4-Pin SMD CB3LV-5I-25M0000
  • € 1.64
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  • RS Stock No. 178-2009
  • Brand CTS
  • Mfr. Part No. CB3LV-5I-25M0000
CTS - Clock Oscillator 25 MHz ±25ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 8 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, TTL, 4-Pin SMD CB3LV-3I-8M0000
  • € 1.52
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  • RS Stock No. 178-2004
  • Brand CTS
  • Mfr. Part No. CB3LV-3I-8M0000
CTS - Clock Oscillator 8 MHz ±50ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 66 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, TTL, 4-Pin SMD CB3LV-3I-66M0000
  • € 1.64
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  • RS Stock No. 178-1998
  • Brand CTS
  • Mfr. Part No. CB3LV-3I-66M0000
CTS - Clock Oscillator 66 MHz ±50ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 50 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, TTL, 4-Pin SMD CB3LV-3I-50M0000
  • € 1.52
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  • RS Stock No. 178-1994
  • Brand CTS
  • Mfr. Part No. CB3LV-3I-50M0000
CTS - Clock Oscillator 50 MHz ±50ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
Abracon, 32.76 kHz XO Crystal Oscillator, ±10ppm CMOS, 4-Pin SMD ASAKMPD1-32.768KHZ-T3
  • € 4.41
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Abracon - XO 32.76 kHz ±10ppm SMD CMOS 1.6 V Surface Mount 3.63 V 4 1.6mm 1.2mm -40 °C 0.6mm +85 °C 1.6 x 1.2 x 0.6mm -
Abracon, 32.76 kHz XO Crystal Oscillator, ±15ppm CMOS, 4-Pin SMD ASAKMPD5-32.768KHZ-T3
  • € 5.18
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Abracon - XO 32.76 kHz ±15ppm SMD CMOS 1.6 V Surface Mount 3.63 V 4 1.6mm 1.2mm -40 °C 0.6mm +85 °C 1.6 x 1.2 x 0.6mm -
CTS, 24 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 632L3I024M00000
  • € 1.85
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  • RS Stock No. 178-1926
  • Brand CTS
  • Mfr. Part No. 632L3I024M00000
CTS - Clock Oscillator 24 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 3.2mm 2.5mm -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm -
CTS, 25 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 632L3I025M00000
  • € 1.85
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  • RS Stock No. 178-1927
  • Brand CTS
  • Mfr. Part No. 632L3I025M00000
CTS - Clock Oscillator 25 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 3.2mm 2.5mm -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm -
CTS, 40 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 625L3I040M00000
  • € 1.96
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  • RS Stock No. 178-1920
  • Brand CTS
  • Mfr. Part No. 625L3I040M00000
CTS - Clock Oscillator 40 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 2.5mm 2mm -40 °C 1mm +85 °C 2.5 x 2 x 1mm -
CTS, 40 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 632L3I040M00000
  • € 1.85
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  • RS Stock No. 178-1928
  • Brand CTS
  • Mfr. Part No. 632L3I040M00000
CTS - Clock Oscillator 40 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 3.2mm 2.5mm -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm -
CTS, 8 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 625L3I008M00000
  • € 1.76
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  • RS Stock No. 178-1921
  • Brand CTS
  • Mfr. Part No. 625L3I008M00000
CTS - Clock Oscillator 8 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 2.5mm 2mm -40 °C 1mm +85 °C 2.5 x 2 x 1mm -
CTS, 10 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 625L3I010M00000
  • € 1.82
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  • RS Stock No. 178-1922
  • Brand CTS
  • Mfr. Part No. 625L3I010M00000
CTS - Clock Oscillator 10 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 2.5mm 2mm -40 °C 1mm +85 °C 2.5 x 2 x 1mm -
CTS, 24 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 625M3I024M00000
  • € 1.82
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  • RS Stock No. 178-1925
  • Brand CTS
  • Mfr. Part No. 625M3I024M00000
CTS - Clock Oscillator 24 MHz ±50ppm SMD HCMOS 1.62 V dc Surface Mount 1.98 V dc 4 2.5mm 2mm -40 °C 1mm +85 °C 2.5 x 2 x 1mm -
CTS, 20 MHz Clock Oscillator Crystal Oscillator, ±25ppm HCMOS, TTL, 4-Pin SMD CB3LV-5I-20M0000
  • € 1.64
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  • RS Stock No. 178-2008
  • Brand CTS
  • Mfr. Part No. CB3LV-5I-20M0000
CTS - Clock Oscillator 20 MHz ±25ppm SMD HCMOS, TTL 3 V dc Surface Mount 3.6 V dc 4 7mm 5mm -40 °C 1.8mm +85 °C 7 x 5 x 1.8mm -
CTS, 25 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 625L3I025M00000
  • € 1.82
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  • RS Stock No. 178-1923
  • Brand CTS
  • Mfr. Part No. 625L3I025M00000
CTS - Clock Oscillator 25 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 2.5mm 2mm -40 °C 1mm +85 °C 2.5 x 2 x 1mm -
CTS, 32.76 kHz Clock Oscillator Crystal Oscillator, ±25ppm HCMOS, 4-Pin SMD TC32M5I32K7680
  • € 2.23
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  • RS Stock No. 178-2017
  • Brand CTS
  • Mfr. Part No. TC32M5I32K7680
CTS - Clock Oscillator 32.76 kHz ±25ppm SMD HCMOS - Surface Mount 1.8 V dc 4 3.2mm 2.5mm -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm -
CTS, 50 MHz Clock Oscillator Crystal Oscillator, ±50ppm HCMOS, 4-Pin SMD 632L3I050M00000
  • € 1.85
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  • RS Stock No. 178-1929
  • Brand CTS
  • Mfr. Part No. 632L3I050M00000
CTS - Clock Oscillator 50 MHz ±50ppm SMD HCMOS 2.97 V dc Surface Mount 3.63 V dc 4 3.2mm 2.5mm -40 °C 1mm +85 °C 3.2 x 2.5 x 1mm -
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