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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Viewing 1 - 20 of 229 products
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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. 144-5058
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
13MHz Surface Mount 12pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±10ppm ±10ppm 100Ω -40 °C -
RS Stock No. 144-5059
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
14.3182MHz Surface Mount 20pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±30ppm ±50ppm 100Ω -20 °C -
RS Stock No. 144-5047
BrandRS PRO
£0.71
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. 144-2273
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
24MHz Surface Mount 18pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±30ppm ±30ppm 180Ω -40 °C -
RS Stock No. 144-5060
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
14.7456MHz 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. 144-5048
BrandRS PRO
£0.71
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. 144-2314
BrandRS PRO
£0.503
Each (In a Pack of 20)
Units
32.768kHz Surface Mount 12.5pF SMT 4 6.7mm 1.4mm 1.3mm 6.7 x 1.4 x 1.3mm ±50ppm - 65kΩ -40 °C -
RS Stock No. 144-2274
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
24MHz Surface Mount 22pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±20ppm ±20ppm 180Ω -10 °C -
RS Stock No. 144-5061
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
14.7456MHz Surface Mount 18pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±30ppm ±30ppm 100Ω -40 °C -
RS Stock No. 144-5049
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
8MHz Surface Mount 18pF SMT 2 5.2mm 3.3mm 1.2mm 5.2 x 3.3 x 1.2mm ±20ppm ±30ppm 100Ω -40 °C -
RS Stock No. 144-2286
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
32MHz Surface Mount 8pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm ±10ppm 180Ω -40 °C -
RS Stock No. 144-5078
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
25MHz 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. 144-1027
BrandRS PRO
£0.444
Each (In a Pack of 20)
Units
11.0592MHz Through Hole 20pF - 2 11.05mm 4.65mm 13.49mm 11.05 x 4.65 x 13.49mm ±50ppm ±100ppm 25Ω -20 °C -
RS Stock No. 144-1071
BrandRS PRO
£0.266
Each (In a Pack of 25)
Units
18.432MHz Surface Mount 16pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±20ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-1078
BrandRS PRO
£0.266
Each (In a Pack of 25)
Units
25MHz Surface Mount 18pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±50ppm 40 (Fundamental) Ω, 80 (3rd Overtone) Ω -20 °C -
RS Stock No. 144-2282
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
27.12MHz Surface Mount 8pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm ±10ppm 180Ω -40 °C -
RS Stock No. 144-5074
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
24MHz Surface Mount 18pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±20ppm ±30ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -40 °C -
RS Stock No. 144-2315
BrandRS PRO
£0.503
Each (In a Pack of 20)
Units
32.768kHz Surface Mount 12.5pF SMT 4 6.7mm 1.4mm 1.3mm 6.7 x 1.4 x 1.3mm ±10ppm - 65kΩ -40 °C -
RS Stock No. 144-1050
BrandRS PRO
£0.251
Each (In a Pack of 25)
Units
4MHz Through Hole 18pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 130Ω -20 °C -
RS Stock No. 144-5023
BrandRS PRO
£0.298
Each (In a Pack of 10)
Units
20MHz Surface Mount 12pF SMT 4 6mm 3.5mm 1mm 6 x 3.5 x 1mm ±30ppm ±30ppm 40Ω -40 °C -