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. 144-1039
BrandRS PRO
£0.213
Each (In a Pack of 25)
Units
16MHz Through Hole 18pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-1040
BrandRS PRO
£0.213
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. 144-5059
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. 144-1041
BrandRS PRO
£0.213
Each (In a Pack of 25)
Units
16MHz Through Hole 30pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 40Ω -20 °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. 144-2321
BrandRS PRO
£0.876
Each (In a Pack of 5)
Units
32.768kHz Surface Mount 12.5pF SMT 2 1.6mm 1mm 0.5mm 1.6 x 1 x 0.5mm ±20ppm - 90kΩ -40 °C -
RS Stock No. 144-5092
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
40MHz Surface Mount 8pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±10ppm ±15ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -40 °C -
RS Stock No. 144-5045
BrandRS PRO
£0.71
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. 144-2305
BrandRS PRO
£0.094
Each (In a Pack of 100)
Units
32.768kHz Through Hole 12.5pF - 2 - 2.1mm 6.2mm 2.1 x 6.2mm ±20ppm - 35kΩ -40 °C -
RS Stock No. 144-1063
BrandRS PRO
£0.266
Each (In a Pack of 25)
Units
12MHz Surface Mount 18pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±30ppm 50Ω -40 °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. 144-1059
BrandRS PRO
£0.266
Each (In a Pack of 25)
Units
10MHz Surface Mount 18pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±50ppm 50Ω -20 °C -
RS Stock No. 144-5038
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
16MHz Surface Mount 18pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±20ppm ±20ppm 25Ω -20 °C -
RS Stock No. 144-1042
BrandRS PRO
£0.213
Each (In a Pack of 25)
Units
20MHz Through Hole 12pF - 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 144-2276
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
24MHz Surface Mount 8pF SMT 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±20ppm ±30ppm 180Ω -40 °C -
RS Stock No. 144-1092
BrandRS PRO
£0.266
Each (In a Pack of 25)
Units
7.3728MHz Surface Mount 20pF - 2 12mm 3.8mm 4.6mm 12 x 3.8 x 4.6mm ±30ppm ±50ppm 70Ω -20 °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. 144-2322
BrandRS PRO
£0.738
Each (In a Pack of 10)
Units
32.768kHz Surface Mount 12.5pF SMT 2 2mm 1.2mm 0.6mm 2 x 1.2 x 0.6mm ±50ppm - 90kΩ -40 °C -
RS Stock No. 144-5093
BrandRS PRO
£0.414
Each (In a Pack of 20)
Units
48MHz Surface Mount 8pF SMT 4 3.2mm 2.5mm 0.7mm 3.2 x 2.5 x 0.7mm ±10ppm ±15ppm 40 (Overtone) Ω, 60 (Fundamental) Ω -40 °C -
RS Stock No. 144-5046
BrandRS PRO
£0.71
Each (In a Pack of 10)
Units
25MHz Surface Mount 20pF SMT 4 5mm 3.2mm 1mm 5 x 3.2 x 1mm ±30ppm ±50ppm 20Ω -40 °C -
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Built-in load capacitors IR reflow capable Low resonant ...
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Built-in load capacitors IR reflow capable Low resonant impedance Remote controls, Microprocessor clocks, Mobile phones, DVD & CD-Roms, Electric appliances Consumer electronics.