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. 904-7415
Mfr. Part No.Q22FA1280002012
BrandEPSON
SGD3.105
Each (In a Bag of 2)
units
26MHz Surface Mount 9pF FA-128 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm - 80Ω -40°C -
RS Stock No. 814-9529
Mfr. Part No.QCS12.2880F18B23R
BrandQANTEK
SGD0.305
Each (In a Bag of 10)
units
12.288MHz 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 50Ω -40°C -
RS Stock No. 672-0173
Mfr. Part No.H49-4.000-18-30/50/4085
BrandMERCURY
SGD0.562
Each (In a Pack of 5)
units
4MHz Through Hole 18pF HC-49U 2 10.7mm 4.5mm 13.6mm 10.7 x 4.5 x 13.6mm ±30ppm ±50ppm 100Ω -40°C -
RS Stock No. 173-2319
Mfr. Part No.Q22FA1280003411
BrandEpson
SGD1.282
Each (On a Reel of 250)
units
27.12MHz Surface Mount 8pF SMD 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm ±10ppm 60Ω -40°C -
RS Stock No. 148-5656
Mfr. Part No.LFXTAL011301 830011301
BrandIQD
SGD0.444
Each (In a Pack of 50)
units
8MHz Surface Mount 30pF SMD 2 11.4mm 4.9mm 4.3mm 11.4 x 4.9 x 4.3mm ±30ppm ±50ppm 40Ω -10°C -
RS Stock No. 148-4331
Mfr. Part No.LFXTAL003151 830003151
BrandIQD
SGD0.639
Each (In a Pack of 50)
units
8MHz Surface Mount 16pF SMD 2 11.4mm 4.9mm 4.3mm 11.4 x 4.9 x 4.3mm ±30ppm ±50ppm 40Ω -10°C -
RS Stock No. 148-4325
Mfr. Part No.LFXTAL003215 830003215B
BrandIQD
SGD0.816
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. 814-9399
Mfr. Part No.QCL4.194304F18B23B
BrandQANTEK
SGD0.348
Each (In a Bag of 10)
units
4.1943MHz Through Hole 18pF HC-49/U-S 2 11.05mm 4.65mm 3.5mm 11.05 x 4.65 x 3.5mm ±20ppm ±30ppm 120Ω -40°C -
RS Stock No. 671-9539
Mfr. Part No.C3E-24.000-12-3030-X
BrandAKER
SGD1.976
Each (In a Pack of 5)
units
24MHz 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. 173-4752
Mfr. Part No.FC4SDCBMF7.3728‐T1
SGD0.238
Each (On a Reel of 1000)
units
7.3728MHz Surface Mount 20pF SMD 2 11.7mm 5mm 4.5mm 11.7 x 5 x 4.5mm ±30ppm ±50ppm 80Ω -20°C -
RS Stock No. 173-2372
Mfr. Part No.Q22FA1280002511
BrandEpson
SGD1.265
Each (On a Reel of 250)
units
32MHz Surface Mount 8pF SMD 4 2mm 1.6mm 0.5mm 2 x 1.6 x 0.5mm ±10ppm ±10ppm 60Ω -40°C -
RS Stock No. 173-4295
Mfr. Part No.FC4STCBMF12.0‐BAG200
SGD0.276
Each (On a Reel of 1000)
units
12MHz Through Hole 20pF HC-49-SLF 2 11.35mm 4.65mm 3.6mm 11.35 x 4.65 x 3.6mm ±30ppm ±50ppm 60Ω -20°C -
RS Stock No. 173-5694
Mfr. Part No.MS3V-T1R 32.768KHZ 12.5PF +-20PPM
SGD1.048
Each (On a Reel of 9000)
units
32.768kHz Surface Mount 12.5pF SMD 2 5mm 1.4mm 1.4mm 5 x 1.4 x 1.4mm ±20ppm - 65kΩ -40°C -
RS Stock No. 904-7528
Mfr. Part No.X1E000021011912
BrandEPSON
SGD0.838
Each (In a Bag of 5)
units
16MHz Surface Mount 12pF TSX-3225 4 3.2mm 2.5mm 0.6mm 3.2 x 2.5 x 0.6mm ±10ppm - 60Ω -40°C -
RS Stock No. 814-9425
Mfr. Part No.QCL12.0000F18B23B
BrandQANTEK
SGD0.358
Each (In a Bag of 10)
units
12MHz Through Hole 18pF HC-49/U-S 2 11.05mm 4.65mm 3.5mm 11.05 x 4.65 x 3.5mm ±20ppm ±30ppm 50Ω -40°C -
RS Stock No. 814-9431
Mfr. Part No.QCL14.7456F18B23B
BrandQANTEK
SGD0.379
Each (In a Bag of 10)
units
14.7456MHz Through Hole 18pF HC-49/U-S 2 11.05mm 4.65mm 3.5mm 11.05 x 4.65 x 3.5mm ±20ppm ±30ppm 50Ω -40°C -
RS Stock No. 173-4546
Mfr. Part No.C3E-24.576-12-3030-X
BrandAKER
SGD1.225
Each (On a Reel of 250)
units
24.576MHz 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. 672-0242
Mfr. Part No.HUS-3.579545-18-30/50/4085
BrandMERCURY
SGD0.578
Each (In a Pack of 5)
units
3.5795MHz Through Hole 18pF HC-49-US 2 10.7mm 4.3mm 3.5mm 10.7 x 4.3 x 3.5mm ±30ppm ±50ppm 120Ω -40°C -
RS Stock No. 672-0306
Mfr. Part No.HUS-20.000-18-30/50/4085
BrandMERCURY
SGD0.544
Each (In a Pack of 5)
units
20MHz 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. 173-5700
Mfr. Part No.9HT10-32.768KDZF-T
BrandTXC
SGD0.685
Each (On a Reel of 3000)
units
32.768kHz Surface Mount 12.5pF SMD 2 3.2mm 1.5mm 0.75mm 3.2 x 1.5 x 0.75mm ±20ppm - 70kΩ -40°C -