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HC-49USX Low-Profile Quartz Crystals

ECS HC-49USX Low-Profile Quartz Crystals are cost-effective, lead-free, and RoHS-compliant crystals with a maximum height of 3.5mm. The HC-49USX thru-hole mount, resistance weld-type crystals have an operating temperature range of -10°C to +70°C. The HC-49USX-DN series features an industrial temperature range of -40°C to +85°C. ECS HC-49USX Low-Profile Quartz Crystals feature a frequency range between 3.57MHz and 70MHz.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (PHP) Filter the results in the table by unit price based on your quantity.	Qty.	Frequency	Load Capacitance	Tolerance	Frequency Stability	Package / Case	Minimum Operating Temperature	Maximum Operating Temperature	Termination Style	ESR	Drive Level	Length	Width	Height	Series	Packaging
Crystals 12MHz 20pF HC-49US ECS-120-20-4X ECS 1: ₱32.52 4,639In Stock	Mfr. Part # ECS-120-20-4X Mouser Part # 520-HCU1200-20X	ECS	Crystals 12MHz 20pF HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	4,639In Stock	₱32.52 ₱25.77 ₱23.37 ₱22.39 View ₱21.84 ₱21.53 ₱21.17 ₱20.67	Min.: 1 Mult.: 1	12 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 16MHZ 18pF 10ppm 10ppm -20 C 70 C ECS-160-18-4X-CKM ECS 1: ₱23.93 9,531In Stock	Mfr. Part # ECS-160-18-4X-CKM Mouser Part # 520-ECS160-18-4X-CKM	ECS	Crystals CRYSTAL 16MHZ 18pF 10ppm 10ppm -20 C 70 C Learn More about ECS hc 49usx quartz crystals	Datasheet	9,531In Stock	₱23.93 ₱19.75 ₱18.04 ₱17.42 View ₱16.99 ₱16.14 ₱15.77 ₱15.34	Min.: 1 Mult.: 1	16 MHz	18 pF	10 PPM	10 PPM	HC-49/USX	- 20 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	5 mm	3.5 mm	HC-49USX	Bulk
Crystals HC-49USX, 20MHz, 18pF, HC-49USX, +/-30ppm, +/-50ppm, -10C +70 C, RoHS ECS-200-18-4X ECS 1: ₱36.20 5,698In Stock	Mfr. Part # ECS-200-18-4X Mouser Part # 520-ECS-200-18-4X	ECS	Crystals HC-49USX, 20MHz, 18pF, HC-49USX, +/-30ppm, +/-50ppm, -10C +70 C, RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	5,698In Stock	Cut Tape ₱36.20 ₱28.47 ₱25.09 Reel ₱25.09 ₱23.50 View ₱21.29 ₱20.31 ₱19.75 ₱18.34	Min.: 1 Mult.: 1 : 200	20 MHz	18 pF	30 PPM	50 PPM	11.35 mm x 3.5 mm	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	5 mm	3.5 mm		Reel, Cut Tape
Crystals 18.432MHz SERIES ECS-184-S-4X ECS 1: ₱38.65 624In Stock	Mfr. Part # ECS-184-S-4X Mouser Part # 520-HCU1843-SX	ECS	Crystals 18.432MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	624In Stock	₱38.65 ₱30.37 ₱27.48 ₱26.32 View ₱23.01 ₱21.78 ₱20.80 ₱19.82	Min.: 1 Mult.: 1	18.432 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 9.8304MHz 20pF ECS-98.3-20-4X ECS 1: ₱37.42 1,000In Stock	Mfr. Part # ECS-98.3-20-4X Mouser Part # 520-HCU983-20X	ECS	Crystals 9.8304MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,000In Stock	₱37.42 ₱29.63 ₱26.07 ₱24.72 View ₱23.19 ₱21.96 ₱20.92 ₱19.82	Min.: 1 Mult.: 1	9.8304 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24.00014MHz 18pF 50ppm -40C +85C ECS-240.001-18-4XEN ECS 1: ₱36.81 188In Stock	Mfr. Part # ECS-240.001-18-4XEN Mouser Part # 520-240.001-18-4XEN	ECS	Crystals 24.00014MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	188In Stock	₱36.81 ₱29.02 ₱26.26 ₱23.31 View ₱21.10 ₱19.39 ₱18.90 ₱18.04	Min.: 1 Mult.: 1	24 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 11.98135MHz Series -10C +70C ECS-119.8-S-4X ECS 1: ₱38.65 208In Stock	Mfr. Part # ECS-119.8-S-4X Mouser Part # 520-HCU119.8-S-4X	ECS	Crystals 11.98135MHz Series -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	208In Stock	₱38.65 ₱30.37 ₱27.48 ₱24.42 View ₱23.13 ₱21.72 ₱21.04 ₱20.25	Min.: 1 Mult.: 1	11.98135 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	3.7 mm	3.5 mm	HCS-49USX	Bulk
Crystals 16.000312MHz 18pF ECS-160.003-18-4X ECS 1: ₱38.65 1,034In Stock	Mfr. Part # ECS-160.003-18-4X Mouser Part # 520-HCU1601-18X	ECS	Crystals 16.000312MHz 18pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,034In Stock	₱38.65 ₱30.37 ₱27.48 ₱26.32 View ₱25.21 ₱21.35 ₱20.43 ₱19.45	Min.: 1 Mult.: 1	16.000312 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 7.3728MHz SERIES ECS-73-S-4X ECS 1: ₱38.65 986In Stock	Mfr. Part # ECS-73-S-4X Mouser Part # 520-HCU737-SX	ECS	Crystals 7.3728MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	986In Stock	₱38.65 ₱30.37 ₱27.48 ₱26.32 View ₱23.01 ₱21.78 ₱20.80 ₱19.82	Min.: 1 Mult.: 1	7.3728 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	80 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 15.36MHz 18pF 50ppm -40C +85C ECS-153.6-18-4X-EN ECS 1: ₱36.81 773In Stock	Mfr. Part # ECS-153.6-18-4X-EN Mouser Part # 520-153.6-18-4XEN	ECS	Crystals 15.36MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	773In Stock	₱36.81 ₱29.02 ₱26.26 ₱25.15 View ₱22.09 ₱20.74 ₱20.18 ₱19.33	Min.: 1 Mult.: 1	15.36 MHz	18 pF	30 PPM	50 PPM		- 40 C	+ 85 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12.96MHz 18pF -10C +70C ECS-129.6-18-4X ECS 1: ₱38.65 201In Stock	Mfr. Part # ECS-129.6-18-4X Mouser Part # 520-HCU129.6-18-4X	ECS	Crystals 12.96MHz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	201In Stock	₱38.65 ₱30.37 ₱27.48 ₱24.42 View ₱22.52 ₱21.35 ₱20.43 ₱19.45	Min.: 1 Mult.: 1	12.96 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 14.31818MHz SERIES ECS-143-S-4X ECS 1: ₱38.65 188In Stock	Mfr. Part # ECS-143-S-4X Mouser Part # 520-HCU1431-SX	ECS	Crystals 14.31818MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	188In Stock	₱38.65 ₱30.37 ₱27.48 ₱24.42 View ₱22.52 ₱21.35 ₱20.43 ₱19.45	Min.: 1 Mult.: 1	14.31818 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.579MHz 17pF EX/TEMP HC-49US ECS-35-17-4XDN ECS 1: ₱38.04 3,008In Stock	Mfr. Part # ECS-35-17-4XDN Mouser Part # 520-HCU357-17DNX	ECS	Crystals 3.579MHz 17pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	3,008In Stock	₱38.04 ₱30.18 ₱26.63 ₱25.89 View ₱24.85 ₱23.68 ₱21.53	Min.: 1 Mult.: 1	3.579545 MHz	17 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS ECS-120-20-4X-EM ECS 1: ₱20.86 992In Stock	Mfr. Part # ECS-120-20-4X-EM Mouser Part # 520-ECS-120-20-4X-EM	ECS	Crystals 12.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	992In Stock	₱20.86 ₱16.63 ₱14.66 ₱14.23 View ₱12.94 ₱12.21 ₱11.60 ₱10.55	Min.: 1 Mult.: 1	12 MHz	20 pF	30 PPM	50 PPM	11.35 mm x 4.65 mm	- 20 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm		Bulk
Crystals 16.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS ECS-160-20-4X-EM ECS 1: ₱20.86 1,171In Stock	Mfr. Part # ECS-160-20-4X-EM Mouser Part # 520-ECS-160-20-4X-EM	ECS	Crystals 16.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	1,171In Stock	₱20.86 ₱16.63 ₱14.66 ₱14.23 View ₱13.80 ₱12.21 ₱11.60 ₱10.55	Min.: 1 Mult.: 1	16 MHz	20 pF	30 PPM	50 PPM	11.35 mm x 4.65 mm	- 20 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm		Bulk
Crystals 3.579545MHZ 18pF 100 ppm -55C +125C ECS-035-18-4X-DU ECS 1: ₱33.13 986In Stock	Mfr. Part # ECS-035-18-4X-DU Mouser Part # 520-035-18-4X-DU	ECS	Crystals 3.579545MHZ 18pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	986In Stock	₱33.13 ₱26.20 ₱23.07 ₱22.94 View ₱20.37 ₱19.33 ₱18.77 ₱17.85	Min.: 1 Mult.: 1	3.579545 MHz	18 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4.000MHZ 20pF 100 ppm -55C +125C ECS-040-20-4X-DU ECS 1: ₱33.13 471In Stock	Mfr. Part # ECS-040-20-4X-DU Mouser Part # 520-040-20-4X-DU	ECS	Crystals 4.000MHZ 20pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	471In Stock	₱33.13 ₱26.20 ₱23.07 ₱22.45 View ₱20.86 ₱19.88 ₱19.45 ₱19.08 ₱18.10	Min.: 1 Mult.: 1	4 MHz	20 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 6.000MHZ 20pF 100 ppm -55C +125C ECS-060-20-4X-DU ECS 1: ₱33.13 176In Stock	Mfr. Part # ECS-060-20-4X-DU Mouser Part # 520-060-20-4X-DU	ECS	Crystals 6.000MHZ 20pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	176In Stock	₱33.13 ₱26.20 ₱23.07 ₱21.41 View ₱20.37 ₱19.33 ₱18.77 ₱17.85	Min.: 1 Mult.: 1	6 MHz	20 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 8.000MHZ 20pF 100 ppm -55C +125C ECS-080-20-4X-DU ECS 1: ₱33.13 2,674In Stock	Mfr. Part # ECS-080-20-4X-DU Mouser Part # 520-080-20-4X-DU	ECS	Crystals 8.000MHZ 20pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	2,674In Stock	₱33.13 ₱25.89 ₱21.90 ₱21.10 View ₱20.49 ₱20.06 ₱19.08 ₱18.10	Min.: 1 Mult.: 1	8 MHz	20 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	80 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 10.000MHZ 20pF 100 ppm -55C +125C ECS-100-20-4X-DU ECS 1: ₱33.13 942In Stock	Mfr. Part # ECS-100-20-4X-DU Mouser Part # 520-100-20-4X-DU	ECS	Crystals 10.000MHZ 20pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	942In Stock	₱33.13 ₱26.20 ₱23.07 ₱22.94 View ₱20.06 ₱19.02 ₱18.47 ₱17.61	Min.: 1 Mult.: 1	10 MHz	20 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 10.24MHz 18pF 50ppm -40C +85C ECS-102.4-18-4XEN ECS 1: ₱36.20 896In Stock	Mfr. Part # ECS-102.4-18-4XEN Mouser Part # 520-102.4-18-4XEN	ECS	Crystals 10.24MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	896In Stock	₱36.20 ₱28.47 ₱26.26 ₱25.15 View ₱22.52 ₱21.17 ₱20.49 ₱19.33	Min.: 1 Mult.: 1	10.24 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 11.0592MHz 18pF 50ppm -40C +85C ECS-110.5-18-4XEN ECS 1: ₱33.13 1,946In Stock 600Expected 16/02/2027	Mfr. Part # ECS-110.5-18-4XEN Mouser Part # 520-110.5-18-4XEN	ECS	Crystals 11.0592MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	1,946In Stock 600Expected 16/02/2027	₱33.13 ₱26.20 ₱23.07 ₱22.45 View ₱21.78 ₱19.82 ₱19.02 ₱18.10	Min.: 1 Mult.: 1	11.0592 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12.000MHZ 18pF 100 ppm -55C +125C ECS-120-18-4X-DU ECS 1: ₱34.36 117In Stock 800Expected 16/02/2027	Mfr. Part # ECS-120-18-4X-DU Mouser Part # 520-120-18-4X-DU	ECS	Crystals 12.000MHZ 18pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	117In Stock 800Expected 16/02/2027	₱34.36 ₱26.99 ₱24.11 ₱23.25 View ₱22.45 ₱19.33 ₱18.77 ₱17.98	Min.: 1 Mult.: 1	12 MHz	18 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12MHz 18pF 50ppm -40C +85C ECS-120-18-4XEN ECS 1: ₱32.52 580In Stock	Mfr. Part # ECS-120-18-4XEN Mouser Part # 520-120-18-4XEN	ECS	Crystals 12MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	580In Stock	₱32.52 ₱25.64 ₱23.07 ₱22.27 View ₱20.12 ₱19.08 ₱18.41 ₱18.10 ₱17.55	Min.: 1 Mult.: 1	12 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12.288MHz 18pF 50ppm -40C +85C ECS-122.8-18-4XEN ECS 1: ₱32.52 100In Stock	Mfr. Part # ECS-122.8-18-4XEN Mouser Part # 520-122.8-18-4XEN	ECS	Crystals 12.288MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	100In Stock	₱32.52 ₱26.38 ₱26.26 ₱22.52 View ₱20.98 ₱19.26 ₱18.83 ₱17.91	Min.: 1 Mult.: 1	12.288 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk