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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 (EUR) 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 6MHz SERIES ECS-60-S-4X ECS 1: 0,525 € 344In Stock	Mfr. Part No. ECS-60-S-4X Mouser Part No 520-HCU600-SX	ECS	Crystals 6MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	344In Stock	0,525 € 0,415 € 0,366 € 0,347 € View 0,33 € 0,31 € 0,301 € 0,284 €	Min.: 1 Mult.: 1	6 MHz	Series	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 6.144MHz 32pF ECS-61-32-4X ECS 1: 0,499 € 775In Stock	Mfr. Part No. ECS-61-32-4X Mouser Part No 520-HCU614-32X	ECS	Crystals 6.144MHz 32pF Learn More about ECS hc 49usx quartz crystals	Datasheet	775In Stock	0,499 € 0,399 € 0,35 € 0,349 € View 0,338 € 0,325 € 0,292 € 0,278 €	Min.: 1 Mult.: 1	6.144 MHz	32 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 6.5MHz 20pF ECS-65-20-4X ECS 1: 0,499 € 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	0,499 € 0,397 € 0,359 € 0,356 € View 0,345 € 0,304 € 0,292 € 0,278 €	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: 0,602 € 2.170In Stock	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	2.170In Stock	0,602 € 0,476 € 0,42 € 0,409 € View 0,396 € 0,356 € 0,327 € 0,312 €	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: 0,499 € 344In Stock 1.000Expected 2/16/2027	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 2/16/2027	0,499 € 0,398 € 0,366 € 0,356 € View 0,334 € 0,316 € 0,304 € 0,289 €	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: 0,525 € 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	0,525 € 0,414 € 0,365 € 0,355 € View 0,344 € 0,305 € 0,292 € 0,286 € 0,277 €	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: 0,611 € 933In 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	933In Stock	0,611 € 0,479 € 0,422 € 0,411 € View 0,398 € 0,368 € 0,344 € 0,328 €	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: 0,49 € 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	0,49 € 0,391 € 0,353 € 0,343 € View 0,332 € 0,314 € 0,301 € 0,284 €	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: 0,516 € 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	0,516 € 0,405 € 0,359 € 0,347 € View 0,345 € 0,326 € 0,318 € 0,303 €	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: 0,525 € 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	0,525 € 0,415 € 0,366 € 0,356 € View 0,325 € 0,307 € 0,293 € 0,278 €	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: 0,525 € 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	0,525 € 0,415 € 0,366 € 0,356 € View 0,323 € 0,305 € 0,292 € 0,278 €	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: 0,525 € 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	0,525 € 0,415 € 0,366 € 0,356 € View 0,33 € 0,31 € 0,301 € 0,284 €	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: 0,499 € 512In 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	512In Stock	0,499 € 0,397 € 0,359 € 0,356 € View 0,322 € 0,304 € 0,292 € 0,278 €	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: 0,55 € 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	0,55 € 0,432 € 0,385 € 0,372 € View 0,33 € 0,312 € 0,298 € 0,284 €	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: 0,525 € 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	0,525 € 0,415 € 0,366 € 0,347 € View 0,323 € 0,305 € 0,292 € 0,278 €	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: 0,516 € 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	0,516 € 0,407 € 0,372 € View 0,316 € 0,304 € 0,271 €	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: 0,542 € 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	0,542 € 0,426 € View 0,385 € 0,369 € 0,353 € 0,334 € 0,318 € 0,284 €	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: 0,516 € 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	0,516 € 0,407 € 0,368 € View 0,353 € 0,338 € 0,319 € 0,304 € 0,271 €	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: 0,542 € 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	0,542 € 0,426 € 0,385 € View 0,369 € 0,353 € 0,334 € 0,318 € 0,284 €	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: 0,542 € 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	0,542 € 0,426 € 0,385 € View 0,369 € 0,353 € 0,334 € 0,318 € 0,284 €	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: 0,516 € 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	0,516 € 0,407 € 0,368 € 0,353 € View 0,338 € 0,319 € 0,304 € 0,271 €	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: 0,585 € 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	0,585 € 0,462 € 0,418 € 0,401 € View 0,384 € 0,363 € 0,346 € 0,308 €	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: 0,688 € 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	0,688 € 0,536 € 0,485 € 0,466 € View 0,446 € 0,421 € 0,402 € 0,358 €	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: 0,516 € 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	0,516 € 0,407 € 0,368 € View 0,353 € 0,338 € 0,319 € 0,304 € 0,271 €	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: 1,02 € 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	1,02 € 0,798 € 0,765 € 0,722 € View 0,688 € 0,663 € 0,624 € 0,57 €	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