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. 671-9536
Mfr. Part No.C3E-20.000-12-3030-X
BrandAKER
HK$11.86
Each (In a Pack of 5)
units
20MHz Surface Mount 12pF SMD 4 3.2mm 2.5mm 0.75mm 3.2 x 2.5 x 0.75mm ±30ppm ±30ppm 100Ω -40°C -
RS Stock No. 173-4547
Mfr. Part No.C3E-20.000-12-3030-X
BrandAKER
HK$7.09
Each (On a Reel of 250)
units
20MHz Surface Mount 12pF SMD 4 3.2mm 2.5mm 0.75mm 3.2 x 2.5 x 0.75mm ±30ppm ±30ppm 100Ω -40°C -
RS Stock No. 672-0283
Mfr. Part No.HUS-12.000-18-30/50/4085
BrandMERCURY
HK$3.844
Each (In a Pack of 5)
units
12MHz 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. 728-8314
Mfr. Part No.5RCA20000123TF50Q3
BrandInterquip
HK$11.326
Each (In a Bag of 5)
units
20MHz Surface Mount 12pF SMD 4 5mm 3.2mm 1.2mm 5 x 3.2 x 1.2mm ±30ppm ±30ppm 50Ω -10°C -
RS Stock No. 904-7503
Mfr. Part No.X1A000141000312
BrandEPSON
HK$7.302
Each (In a Bag of 5)
units
32.768kHz Surface Mount 12.5pF FC-135R 2 3.2mm 1.5mm 0.8mm 3.2 x 1.5 x 0.8mm ±20ppm - 50kΩ -40°C -
RS Stock No. 729-3325
Mfr. Part No.CC4V-1.00000-TA-100
HK$90.60
Each
units
1MHz Surface Mount 10pF SMD 2 5mm 1.9mm 0.9mm 5 x 1.9 x 0.9mm ±100ppm - 1.2kΩ -40°C -
RS Stock No. 672-0309
Mfr. Part No.HUS-24.000-18-30/50/4085
BrandMERCURY
HK$3.126
Each (In a Pack of 5)
units
24MHz 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. 547-6171
Mfr. Part No.FOXSLF/040
HK$2.82
Each (In a Pack of 5)
units
4MHz Through Hole 20pF HC-49-SLF 2 11.35mm 4.65mm 3.6mm 11.35 x 4.65 x 3.6mm ±30ppm ±50ppm 150Ω -20°C -
RS Stock No. 672-7584
Mfr. Part No.MS1V-T1K 32.768kHz 6pF +-20ppm
HK$9.13
Each (In a Pack of 5)
units
32.768kHz Surface Mount 6pF SMD 2 6mm 2mm 2mm 6 x 2 x 2mm ±20ppm - 60kΩ -40°C -
RS Stock No. 675-4740
Mfr. Part No.E6SB10.0000F12E33
BrandHosonic
HK$6.90
Each (In a Pack of 5)
units
10MHz Surface Mount 12pF SMD 4 6mm 3.5mm 1mm 6 x 3.5 x 1mm ±30ppm ±30ppm 100Ω -20°C -
RS Stock No. 173-4722
Mfr. Part No.FOXSLF/040
HK$1.51
Each (On a Reel of 1000)
units
4MHz Through Hole 20pF HC-49-SLF 2 11.35mm 4.65mm 3.6mm 11.35 x 4.65 x 3.6mm ±30ppm ±50ppm 150Ω -20°C -
RS Stock No. 775-3764
Mfr. Part No.QC2516.3840F12B12
BrandQANTEK
HK$5.41
Each (In a Bag of 5)
units
16.384MHz Surface Mount 12pF SMD 4 2.5mm 2mm 0.6mm 2.5 x 2 x 0.6mm ±10ppm ±20ppm 150Ω -40°C -
RS Stock No. 753-7360
Mfr. Part No.NX3225SA-32.000000MHZ-STD-CSR-3
BrandNDK
HK$8.97
Each
units
32MHz Surface Mount 8pF SMD 4 3.2mm 2.5mm 0.55mm 3.2 x 2.5 x 0.55mm ±15ppm ±15 x 10^-6 ^-6 50Ω -10°C -
RS Stock No. 173-4391
Mfr. Part No.QC5CA8.00000F12B23R
BrandQANTEK
HK$3.502
Each (On a Reel of 1000)
units
8MHz Surface Mount 12pF SMD 4 5mm 3.2mm 1.1mm 5 x 3.2 x 1.1mm ±20ppm ±30ppm 100Ω -40°C -
RS Stock No. 753-7449
Mfr. Part No.NX5032GA 8MHZ AT-W-STD-CSU-1
BrandNDK
HK$15.55
Each
units
8MHz Surface Mount 8pF SMD 2 5mm 3.2mm 1.3mm 5 x 3.2 x 1.3mm ±50ppm ±150 x 10^-6 ^-6 300Ω -40°C -
RS Stock No. 667-6120
Mfr. Part No.Q13MC3061000611
BrandEpson
HK$9.748
Each (In a Pack of 5)
units
32.768kHz Surface Mount 6pF SMD 4 8mm 3.2mm 2.38mm 8 x 3.2 x 2.38mm ±20ppm - 50kΩ -40°C -
RS Stock No. 146-3995
Mfr. Part No.LFXTAL003325 830003325B
BrandIQD
HK$2.94
Each (In a Bag of 100)
units
24MHz Through Hole 30pF HC49/4H 2 11.05mm 4.7mm 4.1mm 11.05 x 4.7 x 4.1mm ±30ppm ±50ppm 40Ω -10°C -
RS Stock No. 146-3923
Mfr. Part No.LFXTAL002995 830002995B
BrandIQD
HK$1.92
Each (In a Bag of 1000)
units
32.768kHz Through Hole 12.5 Cylinder 2 - - 8.2mm 3 (Dia.) x 8.2mm ±20ppm - 50kΩ -40°C -
RS Stock No. 173-4425
Mfr. Part No.MS1V-T1K 32.768KHZ 6PF +-20PPM
HK$6.237
Each (On a Reel of 8000)
units
32.768kHz Surface Mount 6pF SMD 2 6mm 2mm 2mm 6 x 2 x 2mm ±20ppm - 60kΩ -40°C -
RS Stock No. 173-4563
Mfr. Part No.CC4V-T1A 32.768KHZ 9PF +-20PPM
HK$11.375
Each (On a Reel of 2000)
units
32.768kHz Surface Mount 9pF SMD 2 5mm 1.9mm 0.9mm 5 x 1.9 x 0.9mm ±20ppm - 65kΩ - -
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