HC-49/U 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)

MP040 CRYSTAL 4.0000MHZ 20PF TH CTS-Frequency Controls	3,995 In Stock	1 : $0.83000 Bulk	MP	Bulk	Active	MHz Crystal	4 MHz	±50ppm	±30ppm	20pF	100 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
ECS-10-13-1XH CRYSTAL 1.0000MHZ 13PF TH ECS Inc.	1,141 In Stock	1 : $10.71000 Bulk	HC-49UX(H)	Bulk	Active	MHz Crystal	1 MHz	±100ppm	±100ppm	13pF	3 kOhms	Fundamental	0°C ~ 60°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-10-13-1H CRYSTAL 1.0000MHZ 13PF TH ECS Inc.	840 In Stock	1 : $11.10000 Bulk	HC-49U(H)	Bulk	Not For New Designs	MHz Crystal	1 MHz	±100ppm	±100ppm	13pF	3 kOhms	Fundamental	0°C ~ 60°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
MP111 CRYSTAL 11.0592MHZ SERIES TH CTS-Frequency Controls	8,219 In Stock	1 : $0.51000 Bulk	MP	Bulk	Active	MHz Crystal	11.0592 MHz	±50ppm	±30ppm	Series	30 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
ECS-73-20-1X CRYSTAL 7.3728MHZ 20PF TH ECS Inc.	26,748 In Stock	1 : $0.53000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	7.3728 MHz	±50ppm	±30ppm	20pF	40 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-36-18-1X CRYSTAL 3.6864MHZ 18PF TH ECS Inc.	1,746 In Stock	1 : $0.53000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	3.6864 MHz	±50ppm	±30ppm	18pF	120 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-160-20-1X CRYSTAL 16.0000MHZ 20PF TH ECS Inc.	2,570 In Stock	1 : $0.55000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	16 MHz	±50ppm	±30ppm	20pF	20 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-32-17-1X CRYSTAL 3.2768MHZ 17PF TH ECS Inc.	7,845 In Stock	1 : $0.58000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	3.2768 MHz	±50ppm	±30ppm	17pF	120 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
MP200 CRYSTAL 20.0000MHZ SERIES TH CTS-Frequency Controls	2,437 In Stock	1 : $0.59000 Bulk	MP	Bulk	Active	MHz Crystal	20 MHz	±50ppm	±30ppm	Series	25 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
ECS-200-20-1X CRYSTAL 20.0000MHZ 20PF TH ECS Inc.	2,016 In Stock	1 : $0.61000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	20 MHz	±50ppm	±30ppm	20pF	20 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-122.8-20-1X CRYSTAL 12.2880MHZ 20PF TH ECS Inc.	1,006 In Stock	1 : $0.62000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	12.288 MHz	±50ppm	±30ppm	20pF	30 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
MP120 CRYSTAL 12.0000MHZ SERIES TH CTS-Frequency Controls	2,349 In Stock	1 : $0.65000 Bulk	MP	Bulk	Active	MHz Crystal	12 MHz	±50ppm	±30ppm	Series	30 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
ECS-39-17-1X CRYSTAL 3.93216MHZ 17PF TH ECS Inc.	1,841 In Stock	1 : $0.65000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	3.93216 MHz	±50ppm	±30ppm	17pF	100 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-49-20-1X CRYSTAL 4.9152MHZ 20PF TH ECS Inc.	1,481 In Stock	1 : $0.65000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	4.9152 MHz	±50ppm	±30ppm	20pF	55 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-80-20-1X CRYSTAL 8.0000MHZ 20PF TH ECS Inc.	1,417 In Stock	1 : $0.65000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	8 MHz	±50ppm	±30ppm	20pF	35 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-184-20-1X CRYSTAL 18.4320MHZ 20PF TH ECS Inc.	1,115 In Stock	1 : $0.65000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	18.432 MHz	±50ppm	±30ppm	20pF	20 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
ECS-40-20-1 CRYSTAL 4.0000MHZ 20PF TH ECS Inc.	1,077 In Stock	1 : $0.72000 Bulk	HC-49U	Bulk	Not For New Designs	MHz Crystal	4 MHz	±50ppm	±30ppm	20pF	100 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)
MP101 CRYSTAL 10.0000MHZ 30PF TH CTS-Frequency Controls	1,323 In Stock	1 : $0.77000 Bulk	MP	Bulk	Active	MHz Crystal	10 MHz	±50ppm	±30ppm	30pF	30 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
MP080A CRYSTAL 8.0000MHZ 20PF TH CTS-Frequency Controls	1,700 In Stock	1 : $0.81000 Bulk	MP	Bulk	Active	MHz Crystal	8 MHz	±50ppm	±30ppm	20pF	35 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
AB-1.8432MHZ-B2 CRYSTAL 1.8432MHZ 18PF TH Abracon LLC	3,163 In Stock	1 : $0.92000 Bulk	AB	Bulk	Active	MHz Crystal	1.8432 MHz	±100ppm	±20ppm	18pF	750 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.453" L x 0.197" W (11.50mm x 5.00mm)	0.530" (13.46mm)
A-1.8432-18 CRYSTAL 1.8432MHZ 18PF TH Raltron Electronics	1,325 In Stock	1 : $0.97000 Bulk	A	Bulk	Active	MHz Crystal	1.8432 MHz	±50ppm	±30ppm	18pF	700 Ohms	Fundamental	-	-	Through Hole	HC-49/U	0.435" L x 0.183" W (11.05mm x 4.65mm)	0.531" (13.49mm)
MP020S CRYSTAL 2.0000MHZ 20PF TH CTS-Frequency Controls	2,374 In Stock	1 : $1.00000 Bulk	MP	Bulk	Active	MHz Crystal	2 MHz	±50ppm	±30ppm	20pF	500 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
MP042 CRYSTAL 4.9152MHZ 20PF TH CTS-Frequency Controls	1,458 In Stock	1 : $1.01000 Bulk	MP	Bulk	Active	MHz Crystal	4.9152 MHz	±50ppm	±30ppm	20pF	50 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
MP037 CRYSTAL 3.6864MHZ 20PF TH CTS-Frequency Controls	635 In Stock	1 : $1.08000 Bulk	MP	Bulk	Active	MHz Crystal	3.6864 MHz	±50ppm	±30ppm	20pF	200 Ohms	Fundamental	-20°C ~ 70°C	-	Through Hole	HC-49/U	0.427" L x 0.150" W (10.85mm x 3.80mm)	0.530" (13.46mm)
ECS-20-20-1X CRYSTAL 2.0000MHZ 20PF TH ECS Inc.	18,284 In Stock	1 : $1.29000 Bulk	HC-49UX	Bulk	Active	MHz Crystal	2 MHz	±50ppm	±30ppm	20pF	500 Ohms	Fundamental	-10°C ~ 70°C	-	Through Hole	HC-49/U	0.447" L x 0.183" W (11.35mm x 4.65mm)	0.530" (13.46mm)

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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.

HC-49/U Crystals

HC-49/U Crystals

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