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. 144-5034
BrandRS PRO
£0.298
Each (In a Pack of 10)
Units
10MHz Surface Mount 12pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±30ppm ±30ppm 60Ω -40 °C -
RS Stock No. 144-5070
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
20MHz Surface Mount 12pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±30ppm ±30ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -40 °C -
RS Stock No. 144-2316
BrandRS PRO
£0.503
Each (In a Pack of 20)
Units
32.768kHz Surface Mount 6pF SMT 4 6.7mm 1.4mm 1.3mm 6.7 x 1.4 x 1.3mm ±50ppm - 65kΩ -40 °C -
RS Stock No. 144-1031
BrandRS PRO
£0.444
Each (In a Pack of 20)
Units
3.57MHz Through Hole 18pF - 2 11.05mm 4.65mm 13.49mm 11.05 x 4.65 x 13.49mm ±50ppm ±100ppm 180Ω -20 °C -
RS Stock No. 144-5035
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
12MHz Surface Mount 12pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±30ppm ±30ppm 35Ω -40 °C -
RS Stock No. 144-5071
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
20MHz Surface Mount 18pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±20ppm ±20ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -20 °C -
RS Stock No. 144-2325
BrandRS PRO
£0.345
Each (In a Pack of 10)
Units
32.768kHz Surface Mount 9pF SMT 2 2mm 1.2mm 0.6mm 2 x 1.2 x 0.6mm ±50ppm - 90kΩ -40 °C -
RS Stock No. 144-5095
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
8MHz Surface Mount 8pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±20ppm ±20ppm 100Ω -20 °C -
RS Stock No. 144-5030
BrandRS PRO
£0.446
Each (In a Pack of 5)
Units
6MHz Surface Mount 20pF SMT 4 7mm 5mm 1.1mm 7 x 5 x 1.1mm ±30ppm ±30ppm 100Ω -10 °C -
RS Stock No. 144-2317
BrandRS PRO
£0.503
Each (In a Pack of 20)
Units
32.768kHz Surface Mount 7pF SMT 4 6.7mm 1.4mm 1.3mm 6.7 x 1.4 x 1.3mm ±50ppm - 65kΩ -40 °C -
RS Stock No. 144-1032
BrandRS PRO
£0.186
Each (In a Pack of 25)
Units
10MHz Through Hole 18pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 50Ω -20 °C -
RS Stock No. 144-1047
BrandRS PRO
£0.213
Each (In a Pack of 25)
Units
3.57MHz Through Hole 18pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 180Ω -20 °C -
RS Stock No. 144-5036
BrandRS PRO
£0.298
Each (In a Pack of 10)
Units
12MHz Surface Mount 20pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±30ppm ±50ppm 35Ω -40 °C -
RS Stock No. 144-2352
BrandRS PRO
£1.182
Each (In a Pack of 5)
Units
8MHz Surface Mount 18pF SMT 4 12.5mm 4.6mm 3.7mm 12.5 x 4.6 x 3.7mm ±50ppm ±50ppm 100Ω -20 °C -
RS Stock No. 144-2338
BrandRS PRO
£1.182
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. 144-5072
BrandRS PRO
£0.414
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. 144-5025
BrandRS PRO
£0.298
Each (In a Pack of 10)
Units
25MHz Surface Mount 18pF SMT 4 6mm 3.5mm 1mm 6 x 3.5 x 1mm ±100ppm ±100ppm 40Ω -40 °C -
RS Stock No. 144-2326
BrandRS PRO
£0.533
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 ±10ppm - 90kΩ -40 °C -
RS Stock No. 144-5096
BrandRS PRO
£0.298
Each (In a Pack of 10)
Units
16MHz Surface Mount 10pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm ±10ppm 70Ω -10 °C -
RS Stock No. 144-2285
BrandRS PRO
£0.275
Each (In a Pack of 10)
Units
32MHz Surface Mount 10pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm ±10ppm 180Ω -40 °C -
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