Crystal Units

Quartz crystal units are used as resonators in crystal oscillator circuits.
Crystals have highly accurate frequency, tight tolerance and long-term stability. They come in a wide range of frequencies and provide the clock source. Specifications include resonance frequency, resonance mode, load capacitance and series resistance. Mode of oscillation in the resonance frequency operation is specified at the fundamental frequency or the third overtone.

Crystals have two resonance modes, parallel and series. Load capacitance is an important specification when using parallel-resonant oscillation mode. Oscillator circuits can tolerate some degree of series resistance. Metal, ceramic epoxy and plastic package variety for crystals offer excellent environmental and heat resistance. Applications of a crystal are found in mobile phones, clock circuit for microprocessors, GPS clocks, and ISM band radio frequency communications.

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Description Price Standard Frequency Mounting Type Load Capacitance Package Type Pin Count Length Width Height Dimensions Frequency Tolerance Frequency Stability Series Resistance Minimum Operating Temperature Automotive Standard
RS Stock No. 144-5047
BrandRS PRO
PHP55.251
Each (In a Pack of 10)
units
8MHz Surface Mount 18pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±20ppm ±50ppm 85Ω -20 °C -
RS Stock No. 144-1074
BrandRS PRO
PHP20.731
Each (In a Pack of 25)
units
20MHz Surface Mount 18pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-1075
BrandRS PRO
PHP20.731
Each (In a Pack of 25)
units
20MHz Surface Mount 20pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±30ppm 40Ω -40 °C -
RS Stock No. 144-5048
BrandRS PRO
PHP55.251
Each (In a Pack of 10)
units
12MHz Surface Mount 18pF SMT 2 5.2mm 3.3mm 1.2mm 5.2 x 3.3 x 1.2mm ±20ppm ±30ppm 80Ω -40 °C -
RS Stock No. 144-5055
BrandRS PRO
PHP32.217
Each (In a Pack of 20)
units
12MHz Surface Mount 12pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±30ppm ±30ppm 100Ω -40 °C -
RS Stock No. 144-2300
BrandRS PRO
PHP61.243
Each (In a Pack of 10)
units
32MHz Surface Mount 9pF SMT 4 2.5mm 2mm 0.5mm 2.5 x 2 x 0.5mm ±10ppm ±10ppm 50Ω -10 °C -
RS Stock No. 144-1060
BrandRS PRO
PHP20.731
Each (In a Pack of 25)
units
10MHz Surface Mount 20pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±50ppm 50Ω -20 °C -
RS Stock No. 144-5084
BrandRS PRO
PHP32.217
Each (In a Pack of 20)
units
26MHz Surface Mount 16pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±10ppm ±10ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -20 °C -
RS Stock No. 144-1038
BrandRS PRO
PHP18.70
Each (In a Pack of 25)
units
14.3182MHz Through Hole 18pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 50Ω -20 °C -
RS Stock No. 144-2327
BrandRS PRO
PHP41.439
Each (In a Pack of 20)
units
32.768kHz Surface Mount 12.5pF SMT 2 3.2mm 1.5mm 0.8mm 3.2 x 1.5 x 0.8mm ±50ppm - 90kΩ -40 °C -
RS Stock No. 144-5072
BrandRS PRO
PHP32.217
Each (In a Pack of 20)
units
20MHz Surface Mount 20pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±50ppm ±50ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -40 °C -
RS Stock No. 144-1040
BrandRS PRO
PHP16.56
Each (In a Pack of 25)
units
16MHz Through Hole 20pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-5045
BrandRS PRO
PHP55.251
Each (In a Pack of 10)
units
25MHz Surface Mount 12pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±30ppm ±30ppm 20Ω -40 °C -
RS Stock No. 144-2301
BrandRS PRO
PHP61.243
Each (In a Pack of 10)
units
32MHz Surface Mount 9pF SMT 4 2.5mm 2mm 0.5mm 2.5 x 2 x 0.5mm ±10ppm ±20ppm 50Ω -40 °C -
RS Stock No. 144-1043
BrandRS PRO
PHP19.10
Each (In a Pack of 25)
units
20MHz Through Hole 18pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-5053
BrandRS PRO
PHP32.217
Each (In a Pack of 20)
units
12MHz Surface Mount 10pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±30ppm ±30ppm 100Ω -20 °C -
RS Stock No. 144-1026
BrandRS PRO
PHP68.247
Each (In a Pack of 10)
units
1.8432MHz Through Hole 30pF - 2 11.05mm 4.65mm 13.49mm 11.05 x 4.65 x 13.49mm ±50ppm ±100ppm 700Ω -20 °C -
RS Stock No. 144-1066
BrandRS PRO
PHP20.731
Each (In a Pack of 25)
units
14.7456MHz Surface Mount 20pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-2338
BrandRS PRO
PHP91.982
Each (In a Pack of 5)
units
16MHz Surface Mount 18pF SMT 4 12.5mm 4.6mm 3.7mm 12.5 x 4.6 x 3.7mm ±50ppm ±50ppm 50Ω -40 °C -
RS Stock No. 144-5019
BrandRS PRO
PHP27.626
Each (In a Pack of 20)
units
4MHz Through Hole 18pF - 2 - 3.2 (Dia.)mm 10.5mm 3.2 (Dia.) x 10.5mm ±50ppm ±50ppm 200Ω -10 °C -
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