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. 693-8800
Mfr. Part No.11.0592MHz HC49/4H/30/50/-40+85/18pF/ATF
BrandEuroquartz
HK$16.63
Each
units
11.0592MHz Through Hole 18pF HC-49-4H 2 10.77mm 4.34mm 3.5mm 10.77 x 4.34 x 3.5mm ±30ppm ±3ppm 40Ω -40 °C -
RS Stock No. 693-6964
Mfr. Part No.AS-12.000-18
BrandRALTRON
HK$2.73
Each (In a Bag of 10)
units
12MHz Through Hole 18pF HC-49-S 2 11.35mm 5mm 3.5mm 11.35 x 5 x 3.5mm ±30ppm ±50ppm 50Ω -20 °C -
RS Stock No. 671-9274
Mfr. Part No.CAA-20.000-18-3050-X
BrandAKER
HK$6.32
Each (In a Pack of 5)
units
20MHz Surface Mount 18pF HC-49-US SMD 2 13.5mm 4.8mm 4.6mm 13.5 x 4.8 x 4.6mm ±30ppm ±50ppm 40Ω -40 °C -
RS Stock No. 173-5818
Mfr. Part No.CC7V-T1A 32.768KHZ 9PF +-20PPM
HK$11.945
Each (On a Reel of 3000)
units
32.768kHz Surface Mount 9pF SMD 2 3.2mm 1.5mm 0.9mm 3.2 x 1.5 x 0.9mm ±20ppm - 70kΩ - -
RS Stock No. 173-4361
Mfr. Part No.CAA-20.000-18-3050-X
BrandAKER
HK$3.17
Each (On a Reel of 250)
units
20MHz Surface Mount 18pF HC-49-US SMD 2 13.5mm 4.8mm 4.6mm 13.5 x 4.8 x 4.6mm ±30ppm ±50ppm 40Ω -40 °C -
RS Stock No. 173-5697
Mfr. Part No.QTC332.76809B2R
BrandQANTEK
HK$6.968
Each (On a Reel of 3000)
units
32.768kHz Surface Mount 9pF SMD 2 3.2mm 1.5mm 0.65mm 3.2 x 1.5 x 0.65mm ±20ppm - 65kΩ -40 °C -
RS Stock No. 672-7638
Mfr. Part No.CC7V-T1A 32.768kHz 9pF +-20ppm
HK$12.012
Each (In a Pack of 5)
units
32.768kHz Surface Mount 9pF SMD 2 3.2mm 1.5mm 0.9mm 3.2 x 1.5 x 0.9mm ±20ppm - 70kΩ - -
RS Stock No. 814-9358
Mfr. Part No.QTC332.76809B2R
BrandQANTEK
HK$6.632
Each (In a Bag of 5)
units
32.768kHz Surface Mount 9pF SMD 2 3.2mm 1.5mm 0.65mm 3.2 x 1.5 x 0.65mm ±20ppm - 65kΩ -40 °C -
RS Stock No. 814-9440
Mfr. Part No.QCL16.0000F18B23B
BrandQANTEK
HK$1.895
Each (In a Bag of 10)
units
16MHz Through Hole 18pF HC-49/U-S 2 11.05mm 4.65mm 3.5mm 11.05 x 4.65 x 3.5mm ±20ppm ±30ppm 40Ω -40 °C -
RS Stock No. 173-4743
Mfr. Part No.QCS8.00000F18B23R
BrandQANTEK
HK$2.389
Each (On a Reel of 1000)
units
8MHz Surface Mount 18pF HC-49/U-S SMD 2 11.4mm 4.8mm 4.4mm 11.4 x 4.8 x 4.4mm ±20ppm ±30ppm 60Ω -40 °C -
RS Stock No. 672-0274
Mfr. Part No.HUS-11.0592-18-30/50/4085
BrandMERCURY
HK$4.766
Each (In a Pack of 5)
units
11.0592MHz Through Hole 18pF HC-49-US 2 10.7mm 4.3mm 3.5mm 10.7 x 4.3 x 3.5mm ±30ppm ±50ppm 40Ω -40 °C -
RS Stock No. 813-6093
Mfr. Part No.QC5CB8.00000F18B23R
BrandQANTEK
HK$4.576
Each (In a Bag of 5)
units
8MHz Surface Mount 18pF SMD 2 5mm 3.2mm 1.1mm 5 x 3.2 x 1.1mm ±20ppm ±30ppm 100Ω -40 °C -
RS Stock No. 814-9507
Mfr. Part No.QCS8.00000F18B23R
BrandQANTEK
HK$1.968
Each (In a Bag of 10)
units
8MHz Surface Mount 18pF HC-49/U-S SMD 2 11.4mm 4.8mm 4.4mm 11.4 x 4.8 x 4.4mm ±20ppm ±30ppm 60Ω -40 °C -
RS Stock No. 173-4554
Mfr. Part No.CM7V-T1A 32.768KHZ 9PF +/-20PPM TA QC
HK$11.546
Each (On a Reel of 3000)
units
32.768kHz Surface Mount 9pF SMD 2 3.2mm 1.5mm 0.65mm 3.2 x 1.5 x 0.65mm ±20ppm - 70kΩ -40 °C -
RS Stock No. 173-5828
Mfr. Part No.CM7V-T1A 32.768KHZ 7PF +/-10PPM TA QC
HK$12.94
Each (On a Reel of 3000)
units
32.768kHz Surface Mount 7pF SMD 2 3.2mm 1.5mm 0.65mm 3.2 x 1.5 x 0.65mm ±10ppm - 70kΩ -40 °C -
RS Stock No. 729-3262
Mfr. Part No.CM7V-T1A 32.768kHz 9pF +/-20ppm TA QC
HK$9.792
Each (In a Bag of 5)
units
32.768kHz Surface Mount 9pF SMD 2 3.2mm 1.5mm 0.65mm 3.2 x 1.5 x 0.65mm ±20ppm - 70kΩ -40 °C -
RS Stock No. 148-4325
Mfr. Part No.LFXTAL003215 830003215B
BrandIQD
HK$2.66
Each (In a Pack of 50)
units
12MHz Through Hole 30pF HC49/4H 2 11.05mm 4.7mm 4.1mm 11.05 x 4.7 x 4.1mm ±30ppm ±50ppm 40Ω -20 °C -
RS Stock No. 173-5683
Mfr. Part No.QC5CB8.00000F18B23R
BrandQANTEK
HK$5.773
Each (On a Reel of 1000)
units
8MHz Surface Mount 18pF SMD 2 5mm 3.2mm 1.1mm 5 x 3.2 x 1.1mm ±20ppm ±30ppm 100Ω -40 °C -
RS Stock No. 173-5695
Mfr. Part No.MS1V-T1K 32.768KHZ 7PF +-20PPM
HK$6.222
Each (On a Reel of 8000)
units
32.768kHz Surface Mount 7pF SMD 2 6mm 2mm 2mm 6 x 2 x 2mm ±20ppm - 60kΩ -40 °C -
RS Stock No. 672-7593
Mfr. Part No.MS1V-T1K 32.768kHz 7pF +-20ppm
HK$9.29
Each (In a Pack of 5)
units
32.768kHz Surface Mount 7pF SMD 2 6mm 2mm 2mm 6 x 2 x 2mm ±20ppm - 60kΩ -40 °C -
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