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)
	ECS-250-20-33-JTN-TR3 CRYSTAL 25.0000MHZ 20PF SMD ECS Inc.	2,973 In Stock	1 : £0.29000 Cut Tape (CT) 3,000 : £0.18244 Tape & Reel (TR)	ECX-32	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	MHz Crystal	25 MHz	±20ppm	±20ppm	20pF	40 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	4-SMD, No Lead	0.126" L x 0.098" W (3.20mm x 2.50mm)	0.031" (0.80mm)
	ECS-200-12-30-GN-TR CRYSTAL 20.0000MHZ 12PF SMD ECS Inc.	2,128 In Stock	1 : £0.62000 Cut Tape (CT) 1,000 : £0.33424 Tape & Reel (TR)	ECX-53	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	MHz Crystal	20 MHz	±30ppm	±30ppm	12pF	40 Ohms	Fundamental	-40°C ~ 85°C	-	Surface Mount	2-SMD, No Lead	0.197" L x 0.126" W (5.00mm x 3.20mm)	0.055" (1.40mm)

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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.