Crystals

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Type	Frequency	Frequency Stability	Frequency Tolerance	Load Capacitance	ESR (Equivalent Series Resistance)	Operating Mode	Operating Temperature	Ratings	Mounting Type	Package / Case	Size / Dimension	Height - Seated (Max)
	SC32S-9PF20PPM CRYSTAL 32.7680KHZ 9PF SMD Seiko Instruments	12,835 In Stock	1 : £0.50000 Cut Tape (CT) 3,000 : £0.28837 Tape & Reel (TR)	SC32S	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	kHz Crystal (Tuning Fork)	32.768 kHz	-	±20ppm	9pF	70 kOhms	Fundamental	-40°C ~ 85°C	-	Surface Mount	2-SMD, No Lead	0.126" L x 0.059" W (3.20mm x 1.50mm)	0.033" (0.85mm)
	830003151 WE-XTAL QUARTZ CRYSTAL 8.0 MHZ; Würth Elektronik	2,361 In Stock	1 : £0.41000 Cut Tape (CT) 1,000 : £0.21546 Tape & Reel (TR)	WE-XTAL	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	MHz Crystal	8 MHz	±50ppm	±30ppm	16pF	40 Ohms	Fundamental	-10°C ~ 60°C	-	Surface Mount	HC-49/US	0.449" L x 0.193" W (11.40mm x 4.90mm)	0.169" (4.30mm)

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Crystal products are passive components most commonly used as time or frequency references in electronic systems. Consisting of a piezoelectric crystal that mechanically vibrates at a known frequency, their use requires provision of an external oscillator circuit with carefully designed capacitance, drive voltage, and series resistance characteristics, to generate a signal at the indicated crystal frequency that operates successfully over the operating temperature range, without damaging the crystal element. Active devices which integrate this additional necessary circuitry are considered oscillators and are catalogued separately.