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 Frequency Ageing Minimum Operating Temperature
RS Stock No. 703-7144
Mfr. Part No.AS-24.000-18-SMD
BrandRALTRON
TWD16
Each (In a Bag of 10)
units
24MHz Surface Mount 18pF HC-49-US SMD 2 12mm 4.8mm 4.6mm 12 x 4.8 x 4.6mm ±30ppm ±50ppm 40Ω ±5 ppm/yr -20 °C
New
RS Stock No. 173-4728
Mfr. Part No.FOXSLF/250F-20
TWD8
Each (On a Reel of 1000)
units
25MHz Through Hole 20pF HC-49-SLF 2 11.35mm 4.65mm 3.6mm 11.35 x 4.65 x 3.6mm ±30ppm ±50ppm 30Ω ±5 ppm/yr -20 °C
RS Stock No. 547-6351
Mfr. Part No.FOXSLF/250F-20
TWD13
Each (In a Pack of 5)
units
25MHz Through Hole 20pF HC-49-SLF 2 11.35mm 4.65mm 3.6mm 11.35 x 4.65 x 3.6mm ±30ppm ±50ppm 30Ω ±5 ppm/yr -20 °C
RS Stock No. 693-6964
Mfr. Part No.AS-12.000-18
BrandRALTRON
TWD13
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 ±5 ppm/yr -20 °C
RS Stock No. 814-9440
Mfr. Part No.QCL16.0000F18B23B
BrandQANTEK
TWD7
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 ±3 ppm/yr -40 °C
New
RS Stock No. 173-4309
Mfr. Part No.QCL16.0000F18B23B
BrandQANTEK
TWD9
Each (In a Bag of 100)
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 ±3 ppm/yr -40 °C
RS Stock No. 813-6040
Mfr. Part No.QC5CA10.0000F12B23R
BrandQANTEK
TWD19
Each (In a Bag of 5)
units
10MHz Surface Mount 12pF SMD 4 5mm 3.2mm 1.1mm 5 x 3.2 x 1.1mm ±20ppm ±30ppm 100Ω ±5 ppm/yr -40 °C
New
RS Stock No. 173-4487
Mfr. Part No.FQ5032B-16.000
TWD38
Each (On a Reel of 1000)
units
16MHz Surface Mount - SMD 4 5mm 3.2mm 1.2mm 5 x 3.2 x 1.2mm ±30ppm ±30ppm 50Ω ±5 ppm/yr 0 °C
RS Stock No. 703-1997
Mfr. Part No.ABM3B-8.000MHz-B2
BrandAbracon
TWD55
Each (In a Bag of 10)
units
8MHz Surface Mount 18pF SMD 4 5mm 3.2mm 1.1mm 5 x 3.2 x 1.1mm ±20ppm ±50ppm 200Ω ±5 (First Year) ppm/yr -20 °C
New
RS Stock No. 173-5664
Mfr. Part No.QC5CA10.0000F12B23R
BrandQANTEK
TWD25
Each (On a Reel of 1000)
units
10MHz Surface Mount 12pF SMD 4 5mm 3.2mm 1.1mm 5 x 3.2 x 1.1mm ±20ppm ±30ppm 100Ω ±5 ppm/yr -40 °C
RS Stock No. 648-0159
Mfr. Part No.FQ5032B-16.000
TWD32
Each (In a Pack of 5)
units
16MHz Surface Mount - SMD 4 5mm 3.2mm 1.2mm 5 x 3.2 x 1.2mm ±30ppm ±30ppm 50Ω ±5 ppm/yr 0 °C
New
RS Stock No. 173-4735
Mfr. Part No.QCL12.0000F18B23B
BrandQANTEK
TWD9
Each (In a Bag of 100)
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 ±3 ppm/yr -40 °C
RS Stock No. 672-0202
Mfr. Part No.H49-12.000-18-30/50/4085
BrandMERCURY
TWD13
Each (In a Pack of 5)
units
12MHz Through Hole 18pF HC-49U 2 10.7mm 4.5mm 13.6mm 10.7 x 4.5 x 13.6mm ±30ppm ±50ppm 25Ω ±2 ppm/yr -40 °C
RS Stock No. 814-9425
Mfr. Part No.QCL12.0000F18B23B
BrandQANTEK
TWD6
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 ±3 ppm/yr -40 °C
RS Stock No. 672-0306
Mfr. Part No.HUS-20.000-18-30/50/4085
BrandMERCURY
TWD15
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 ±3 (First Year) ppm/yr -40 °C
RS Stock No. 146-3923
Mfr. Part No.LFXTAL002995
BrandIQD
TWD3,619
1 Bag of 1000
Bag(s)
32.768kHz Through Hole 12.5pF Cylinder 2 - - 8.2mm 3 (Dia.) x 8.2mm ±20ppm - 50kΩ ±5 ppm/yr @ 25 °C -40 °C
RS Stock No. 675-4891
Mfr. Part No.E3SB16.0000F09E11
BrandHosonic
TWD49
Each (In a Pack of 5)
units
16MHz Surface Mount 9pF SMD 4 3.2mm 2.5mm 0.65mm 3.2 x 2.5 x 0.65mm ±10ppm ±10ppm 80Ω ±2 ppm/yr -20 °C
New
RS Stock No. 173-4289
Mfr. Part No.NC26LF-327
TWD6
Each (On a Reel of 1000)
units
32.768kHz Through Hole 12.5pF Cylindrical 2 6mm 2mm 2mm 6 x 2 x 2mm ±20ppm - 50kΩ ±3 ppm/yr -20 °C
RS Stock No. 672-7600
Mfr. Part No.MS3V-T1R 32.768kHz 9pF +-20ppm
TWD27
Each (In a Pack of 5)
units
32.768kHz Surface Mount 9pF SMD 2 5mm 1.4mm 1.4mm 5 x 1.4 x 1.4mm ±20ppm - 65kΩ ±3 (First Year) ppm/yr -40 °C
RS Stock No. 226-1443
Mfr. Part No.LFXTAL002995
BrandIQD
TWD23
Each
units
32.768kHz Through Hole 12.5pF Cylindrical 2 3.2mm 3.2mm 8.2mm 3.2 x 3.2 x 8.2mm ±20ppm - 50kΩ - -