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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 (DKK) 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 6.5MHz 20pF ECS-65-20-4X ECS 1: 3,72 kr. 959In Stock	Mfr. Part No. ECS-65-20-4X Mouser Part No 520-HCU650-20X	ECS	Crystals 6.5MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	959In Stock	3,72 kr. 2,96 kr. 2,68 kr. 2,66 kr. View 2,57 kr. 2,27 kr. 2,18 kr. 2,07 kr.	Min.: 1 Mult.: 1	6.5 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 7.3728MHz 20pF EX/TEMP HC-49US ECS-73-20-4XDN ECS 1: 4,49 kr. 570In Stock 1.600On Order	Mfr. Part No. ECS-73-20-4XDN Mouser Part No 520-HCU737-20DNX	ECS	Crystals 7.3728MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	570In Stock 1.600On Order	4,49 kr. 3,55 kr. 3,13 kr. 3,05 kr. View 2,95 kr. 2,66 kr. 2,44 kr. 2,33 kr.	Min.: 1 Mult.: 1	7.3728 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	80 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 7.3728MHz 20pF ECS-73-20-4X ECS 1: 3,72 kr. 344In Stock 1.000Expected 16/02/2027	Mfr. Part No. ECS-73-20-4X Mouser Part No 520-HCU737-20X	ECS	Crystals 7.3728MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	344In Stock 1.000Expected 16/02/2027	3,72 kr. 2,97 kr. 2,73 kr. 2,66 kr. View 2,49 kr. 2,36 kr. 2,27 kr. 2,16 kr.	Min.: 1 Mult.: 1	7.3728 MHz	20 pF	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 7.68MHz 20pF ECS-76.8-20-4X ECS 1: 3,92 kr. 1.397In Stock	Mfr. Part No. ECS-76.8-20-4X Mouser Part No 520-HCU768-20X	ECS	Crystals 7.68MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1.397In Stock	3,92 kr. 3,09 kr. 2,72 kr. 2,65 kr. View 2,57 kr. 2,28 kr. 2,18 kr. 2,13 kr. 2,07 kr.	Min.: 1 Mult.: 1	7.68 MHz	20 pF	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 8MHz 18pF EX/TEMP HC-49US ECS-80-18-4XDN ECS 1: 4,56 kr. 943In Stock	Mfr. Part No. ECS-80-18-4XDN Mouser Part No 520-HCU800-18DNX	ECS	Crystals 8MHz 18pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	943In Stock	4,56 kr. 3,57 kr. 3,15 kr. 3,07 kr. View 2,97 kr. 2,75 kr. 2,57 kr. 2,45 kr.	Min.: 1 Mult.: 1	8 MHz	18 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	80 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 8MHz 18pF ECS-80-18-4X ECS 1: 3,66 kr. 1.108In Stock	Mfr. Part No. ECS-80-18-4X Mouser Part No 520-HCU800-18X	ECS	Crystals 8MHz 18pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1.108In Stock	3,66 kr. 2,92 kr. 2,63 kr. 2,56 kr. View 2,48 kr. 2,34 kr. 2,25 kr. 2,12 kr.	Min.: 1 Mult.: 1	8 MHz	18 pF	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 8MHz 20pF ECS-80-20-4X ECS 1: 3,85 kr. 1.987In Stock	Mfr. Part No. ECS-80-20-4X Mouser Part No 520-HCU800-20X	ECS	Crystals 8MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1.987In Stock	3,85 kr. 3,02 kr. 2,68 kr. 2,59 kr. View 2,57 kr. 2,43 kr. 2,37 kr. 2,26 kr.	Min.: 1 Mult.: 1	8 MHz	20 pF	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 8MHz 32pF ECS-80-32-4X ECS 1: 3,92 kr. 350In Stock	Mfr. Part No. ECS-80-32-4X Mouser Part No 520-HCU800-32X	ECS	Crystals 8MHz 32pF Learn More about ECS hc 49usx quartz crystals	Datasheet	350In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,66 kr. View 2,42 kr. 2,29 kr. 2,19 kr. 2,07 kr.	Min.: 1 Mult.: 1	8 MHz	32 pF	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 8MHz SERIES ECS-80-S-4X ECS 1: 3,92 kr. 945In Stock	Mfr. Part No. ECS-80-S-4X Mouser Part No 520-HCU800-SX	ECS	Crystals 8MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	945In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,66 kr. View 2,41 kr. 2,28 kr. 2,18 kr. 2,07 kr.	Min.: 1 Mult.: 1	8 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 CRYSTAL 8.5MHz ECS-85-S-4X ECS 1: 3,92 kr. 807In Stock	Mfr. Part No. ECS-85-S-4X Mouser Part No 520-HCU850-SX	ECS	Crystals CRYSTAL 8.5MHz Learn More about ECS hc 49usx quartz crystals	Datasheet	807In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,66 kr. View 2,46 kr. 2,31 kr. 2,25 kr. 2,12 kr.	Min.: 1 Mult.: 1	8.5 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 9MHz SERIES ECS-90-S-4X ECS 1: 3,72 kr. 518In Stock	Mfr. Part No. ECS-90-S-4X Mouser Part No 520-HCU900-SX	ECS	Crystals 9MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	518In Stock	3,72 kr. 2,96 kr. 2,68 kr. 2,66 kr. View 2,40 kr. 2,27 kr. 2,18 kr. 2,07 kr.	Min.: 1 Mult.: 1	9 MHz	Series	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 9.216MHz 20pF ECS-92.1-20-4X ECS 1: 4,10 kr. 800In Stock	Mfr. Part No. ECS-92.1-20-4X Mouser Part No 520-HCU921-20X	ECS	Crystals 9.216MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	800In Stock	4,10 kr. 3,22 kr. 2,87 kr. 2,78 kr. View 2,46 kr. 2,33 kr. 2,22 kr. 2,12 kr.	Min.: 1 Mult.: 1	9.216 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 9.8304MHz SERIES ECS-98.3-S-4X ECS 1: 3,92 kr. 74In Stock	Mfr. Part No. ECS-98.3-S-4X Mouser Part No 520-HCU983-SX	ECS	Crystals 9.8304MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	74In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,59 kr. View 2,41 kr. 2,28 kr. 2,18 kr. 2,07 kr.	Min.: 1 Mult.: 1	9.8304 MHz	Series	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 3.579545MHz 30pF ECS-35-30-4X ECS 1: 3,85 kr. 539In Stock Factory Special Order	Mfr. Part No. ECS-35-30-4X Mouser Part No 520-ECS-35-30-4X Factory Special Order	ECS	Crystals 3.579545MHz 30pF Learn More about ECS hc 49usx quartz crystals	Datasheet	539In Stock	3,85 kr. 3,04 kr. 2,78 kr. View 2,36 kr. 2,27 kr. 2,02 kr.	Min.: 1 Mult.: 1	3.579545 MHz	30 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12.096MHz SERIES ECS-121-S-4X ECS 1: 4,04 kr. 31In Stock Factory Special Order	Mfr. Part No. ECS-121-S-4X Mouser Part No 520-HCU1209-SX Factory Special Order	ECS	Crystals 12.096MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	31In Stock	4,04 kr. 3,18 kr. View 2,87 kr. 2,75 kr. 2,63 kr. 2,49 kr. 2,37 kr. 2,12 kr.	Min.: 1 Mult.: 1	12.096 MHz	Series	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 15.0MHz 20pF -10C +70C ECS-150-20-4X ECS 1: 3,85 kr. 183In Stock Factory Special Order	Mfr. Part No. ECS-150-20-4X Mouser Part No 520-HCU150-20-4X Factory Special Order	ECS	Crystals 15.0MHz 20pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	183In Stock	3,85 kr. 3,04 kr. 2,75 kr. View 2,63 kr. 2,52 kr. 2,38 kr. 2,27 kr. 2,02 kr.	Min.: 1 Mult.: 1	15 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	3.7 mm	3.5 mm	HCS-49USX	Bulk
Crystals 27MHz 18pF ECS-240-18-4X-F ECS 1: 4,04 kr. 158In Stock Factory Special Order	Mfr. Part No. ECS-240-18-4X-F Mouser Part No 520-HCU2700-18X Factory Special Order	ECS	Crystals 27MHz 18pF Learn More about ECS hc 49usx quartz crystals	Datasheet	158In Stock	4,04 kr. 3,18 kr. 2,87 kr. View 2,75 kr. 2,63 kr. 2,49 kr. 2,37 kr. 2,12 kr.	Min.: 1 Mult.: 1	27 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial			11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 48MHz 20pF HC-49US ECS-480-20-4X ECS 1: 4,04 kr. 144In Stock Factory Special Order	Mfr. Part No. ECS-480-20-4X Mouser Part No 520-HCU4800-20X Factory Special Order	ECS	Crystals 48MHz 20pF HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	144In Stock	4,04 kr. 3,18 kr. 2,87 kr. View 2,75 kr. 2,63 kr. 2,49 kr. 2,37 kr. 2,12 kr.	Min.: 1 Mult.: 1	48 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 9.545MHz ECS-95-S-4X ECS 1: 3,85 kr. 678In Stock Factory Special Order	Mfr. Part No. ECS-95-S-4X Mouser Part No 520-HCU954-SX Factory Special Order	ECS	Crystals CRYSTAL 9.545MHz Learn More about ECS hc 49usx quartz crystals	Datasheet	678In Stock	3,85 kr. 3,04 kr. 2,75 kr. 2,63 kr. View 2,52 kr. 2,38 kr. 2,27 kr. 2,02 kr.	Min.: 1 Mult.: 1	9.545 MHz	Series	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 17.73MHz 18pF 50ppm -40C +85C ECS-177.3-18-4X-EN ECS 1: 4,36 kr. 1.000In Stock Factory Special Order	Mfr. Part No. ECS-177.3-18-4X-EN Mouser Part No 520-177.3-18-4-EN Factory Special Order	ECS	Crystals 17.73MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	1.000In Stock	4,36 kr. 3,45 kr. 3,12 kr. 2,99 kr. View 2,86 kr. 2,71 kr. 2,58 kr. 2,30 kr.	Min.: 1 Mult.: 1	17.734475 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4MHz 20pF -40C +85C ECS-40-20-4X-DN-TR ECS 1: 5,13 kr. 579In Stock Factory Special Order	Mfr. Part No. ECS-40-20-4X-DN-TR Mouser Part No 520-ECS-40-20-4XDN-T Factory Special Order	ECS	Crystals 4MHz 20pF -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	579In Stock	5,13 kr. 4,00 kr. 3,62 kr. 3,48 kr. View 3,33 kr. 3,14 kr. 3,00 kr. 2,67 kr.	Min.: 1 Mult.: 1	4 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	150 Ohms	500 uW	11.35 mm	3.8 mm	3.5 mm	HCS-49USX
Crystals 16.257MHz SERIES ECS-162.5-S-4X ECS 1: 3,85 kr. 469In Stock Factory Special Order	Mfr. Part No. ECS-162.5-S-4X Mouser Part No 520-HCU1625-SX Factory Special Order	ECS	Crystals 16.257MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	469In Stock	3,85 kr. 3,04 kr. 2,75 kr. View 2,63 kr. 2,52 kr. 2,38 kr. 2,27 kr. 2,02 kr.	Min.: 1 Mult.: 1	16.257 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 19.6608MHz 20pF EX/TEMP HCU-49US ECS-196-20-4XDN ECS 1: 7,61 kr. 950In Stock Factory Special Order	Mfr. Part No. ECS-196-20-4XDN Mouser Part No 520-HCU1966-20DNX Factory Special Order	ECS	Crystals 19.6608MHz 20pF EX/TEMP HCU-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	950In Stock	7,61 kr. 5,95 kr. 5,71 kr. 5,39 kr. View 5,13 kr. 4,95 kr. 4,66 kr. 4,25 kr.	Min.: 1 Mult.: 1	19.6608 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 21.47727MHz SERIES ECS-214-S-4X ECS 1: 4,04 kr. 69In Stock Factory Special Order	Mfr. Part No. ECS-214-S-4X Mouser Part No 520-HCU2147-SX Factory Special Order	ECS	Crystals 21.47727MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	69In Stock	4,04 kr. 3,18 kr. View 2,87 kr. 2,75 kr. 2,63 kr. 2,49 kr. 2,37 kr. 2,12 kr.	Min.: 1 Mult.: 1	21.47727 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4.194304MHz 18pF -10C +70C ECS-42-18-4XEN ECS 1: 3,60 kr. 1.000Expected 10/11/2026	Mfr. Part No. ECS-42-18-4XEN Mouser Part No 520-42-18-4XEN	ECS	Crystals 4.194304MHz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	1.000Expected 10/11/2026	3,60 kr. 2,75 kr. 2,53 kr. 2,38 kr. View 2,27 kr. 2,10 kr. 2,02 kr. 1,93 kr.	Min.: 1 Mult.: 1	4.194304 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 40 C	+ 85 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk