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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 14.7456MHz 18pF 50ppm -40C +85C ECS-147.4-18-4XEN ECS 1: 0,473 € 801In Stock	Mfr. Part No. ECS-147.4-18-4XEN Mouser Part No 520-147.4-18-4XEN	ECS	Crystals 14.7456MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	801In Stock	0,473 € 0,409 € 0,372 € 0,341 € View 0,327 € 0,318 € 0,309 € 0,292 €	Min.: 1 Mult.: 1	14.7456 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 16MHz 18pF 50ppm -40C +85C ECS-160-18-4XEN ECS 1: 0,464 € 405In Stock	Mfr. Part No. ECS-160-18-4XEN Mouser Part No 520-160-18-4XEN	ECS	Crystals 16MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	405In Stock	0,464 € 0,404 € 0,367 € 0,337 € View 0,323 € 0,315 € 0,305 € 0,288 € 0,267 €	Min.: 1 Mult.: 1	16 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 16.000MHZ 20pF 100 ppm -55C +125C ECS-160-20-4X-DU ECS 1: 0,43 € 679In Stock 2 400On Order	Mfr. Part No. ECS-160-20-4X-DU Mouser Part No 520-160-20-4X-DU	ECS	Crystals 16.000MHZ 20pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	679In Stock 2 400On Order On Order Ship Dates Mfr. No: ECS-160-20-4X-DU Stock: 679 Can Dispatch Immediately On Order: 800 Expected 19/01/2027 1 600 Expected 02/02/2027 Factory Lead Time: 17 Weeks	0,43 € 0,345 € 0,319 € 0,318 € View 0,313 € 0,297 € 0,27 € 0,263 € 0,261 €	Min.: 1 Mult.: 1	16 MHz	20 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	40 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 16.384MHz 18pF 50ppm -40C +85C ECS-163.8-18-4XEN ECS 1: 0,507 € 373In Stock	Mfr. Part No. ECS-163.8-18-4XEN Mouser Part No 520-163.8-18-4XEN	ECS	Crystals 16.384MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	373In Stock	0,507 € 0,44 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,326 € 0,304 € 0,291 €	Min.: 1 Mult.: 1	16.384 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 18MHz 18pF 50ppm -40C +85C ECS-180-18-4XEN ECS 1: 0,507 € 293In Stock	Mfr. Part No. ECS-180-18-4XEN Mouser Part No 520-180-18-4XEN	ECS	Crystals 18MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	293In Stock	0,507 € 0,44 € 0,399 € 0,367 € View 0,366 € 0,337 € 0,32 € 0,299 € 0,291 €	Min.: 1 Mult.: 1	18 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 20MHz 18pF 50ppm -40C +85C ECS-200-18-4XEN ECS 1: 0,507 € 1 331In Stock	Mfr. Part No. ECS-200-18-4XEN Mouser Part No 520-200-18-4XEN	ECS	Crystals 20MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	1 331In Stock	0,507 € 0,44 € 0,399 € 0,367 € View 0,351 € 0,35 € 0,297 € 0,286 €	Min.: 1 Mult.: 1	20 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 20.000MHZ 20pF 100 ppm -55C +125C ECS-200-20-4X-DU ECS 1: 0,482 € 69In Stock	Mfr. Part No. ECS-200-20-4X-DU Mouser Part No 520-200-20-4X-DU	ECS	Crystals 20.000MHZ 20pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	69In Stock	0,482 € 0,422 € 0,383 € 0,352 € View 0,337 € 0,323 € 0,301 € 0,282 € 0,273 €	Min.: 1 Mult.: 1	20 MHz	20 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 22.1184MHz 18pF 50ppm -40C +85C ECS-221-18-4XEN ECS 1: 0,525 € 10In Stock	Mfr. Part No. ECS-221-18-4XEN Mouser Part No 520-221-18-4XEN	ECS	Crystals 22.1184MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	10In Stock	0,525 € 0,412 € 0,366 € 0,356 € View 0,308 € 0,286 € 0,273 € 0,268 € 0,263 €	Min.: 1 Mult.: 1	22.1184 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 24MHz 18pF 50ppm -40C +85C ECS-240-18-4XEN ECS 1: 0,499 € 2 515In Stock	Mfr. Part No. ECS-240-18-4XEN Mouser Part No 520-240-18-4XEN	ECS	Crystals 24MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	2 515In Stock	0,499 € 0,427 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,327 € 0,275 €	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 24.576MHz 18pF 50ppm -40C +85C ECS-245.7-18-4XEN ECS 1: 0,499 € 546In Stock	Mfr. Part No. ECS-245.7-18-4XEN Mouser Part No 520-245.7-18-4XEN	ECS	Crystals 24.576MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	546In Stock	0,499 € 0,427 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,31 € 0,286 € 0,277 €	Min.: 1 Mult.: 1	24.576 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 25.000MHZ 18pF 100 ppm -55C +125C ECS-250-18-4X-DU ECS 1: 0,482 € 757In Stock	Mfr. Part No. ECS-250-18-4X-DU Mouser Part No 520-250-18-4X-DU	ECS	Crystals 25.000MHZ 18pF 100 ppm -55C +125C Learn More about ECS hc 49usx quartz crystals	Datasheet	757In Stock	0,482 € 0,422 € 0,383 € 0,352 € View 0,337 € 0,329 € 0,318 € 0,282 € 0,274 €	Min.: 1 Mult.: 1	25 MHz	18 pF	30 PPM	100 PPM	HC-49/USX	- 55 C	+ 125 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 25.000MHZ 18pF 100 ppm -40 C +85C ECS-250-18-4XEN ECS 1: 0,499 € 930In Stock	Mfr. Part No. ECS-250-18-4XEN Mouser Part No 520-250-18-4X-EN	ECS	Crystals 25.000MHZ 18pF 100 ppm -40 C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	930In Stock	0,499 € 0,432 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,307 € 0,283 € 0,273 €	Min.: 1 Mult.: 1	25 MHz	18 pF	30 PPM	50 PPM	HC-49	- 40 C	+ 85 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 25.000MHZ 20pF 100 ppm -40 C +85C ECS-250-20-4X-F-DN ECS 1: 0,628 € 1 031In Stock	Mfr. Part No. ECS-250-20-4X-F-DN Mouser Part No 520-250-20-4X-F-DN	ECS	Crystals 25.000MHZ 20pF 100 ppm -40 C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	1 031In Stock	0,628 € 0,539 € 0,495 € 0,473 € View 0,45 € 0,43 € 0,359 € 0,333 €	Min.: 1 Mult.: 1	25 MHz	20 pF	30 PPM	100 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 28.224MHz 18pF 50ppm -40C +85C ECS-282.24-18-4X-FEN ECS 1: 0,507 € 372In Stock	Mfr. Part No. ECS-282.24-18-4X-FEN Mouser Part No 520-282.24-18-4XF-EN	ECS	Crystals 28.224MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	372In Stock	0,507 € 0,44 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,32 € 0,299 € 0,291 €	Min.: 1 Mult.: 1	28.224 MHz	18 pF	50 PPM	50 PPM		- 40 C	+ 85 C	Radial	30 Ohms	500 uW	3.5 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 28.63636MHz 18pF 50ppm -40C +85C ECS-286.3-18-4X-F-EN ECS 1: 0,507 € 1 086In Stock	Mfr. Part No. ECS-286.3-18-4X-F-EN Mouser Part No 520-286.3-18-4X-F-EN	ECS	Crystals 28.63636MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	1 086In Stock	0,507 € 0,44 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,295 € 0,287 €	Min.: 1 Mult.: 1	28.63636 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 3.579545MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,200 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) ECS-35-18-4XEN ECS 1: 0,464 € 231In Stock	Mfr. Part No. ECS-35-18-4XEN Mouser Part No 520-35-18-4XEN	ECS	Crystals CRYSTAL 3.579545MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,200 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) Learn More about ECS hc 49usx quartz crystals	Datasheet	231In Stock	0,464 € 0,407 € 0,369 € 0,339 € View 0,324 € 0,316 € 0,301 € 0,278 € 0,267 €	Min.: 1 Mult.: 1	3.579545 MHz	18 pF	30 PPM	50 PPM		- 40 C	+ 85 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4MHz 18pF -10C +70C ECS-40-18-4XEN ECS 1: 0,447 € 3 064In Stock	Mfr. Part No. ECS-40-18-4XEN Mouser Part No 520-40-18-4XEN	ECS	Crystals 4MHz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	3 064In Stock	0,447 € 0,386 € 0,351 € 0,323 € View 0,308 € 0,30 € 0,292 € 0,275 €	Min.: 1 Mult.: 1	4 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
Crystals 40MHz 18pF 50ppm -40C +85C ECS-400-18-4XEN ECS 1: 0,49 € 156In Stock	Mfr. Part No. ECS-400-18-4XEN Mouser Part No 520-400-18-4XEN	ECS	Crystals 40MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	156In Stock	0,49 € 0,392 € 0,366 € 0,356 € View 0,342 € 0,286 € 0,273 € 0,267 € 0,262 €	Min.: 1 Mult.: 1	40 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	100 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: 0,473 € 1 398In Stock	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 398In Stock	0,473 € 0,408 € 0,36 € 0,35 € View 0,34 € 0,281 € 0,27 € 0,265 € 0,26 €	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
Crystals CRYSTAL 4.9152MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,150 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) ECS-49-18-4XEN ECS 1: 0,533 € 148In Stock	Mfr. Part No. ECS-49-18-4XEN Mouser Part No 520-49-18-4XEN	ECS	Crystals CRYSTAL 4.9152MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,150 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) Learn More about ECS hc 49usx quartz crystals	Datasheet	148In Stock	0,533 € 0,464 € 0,423 € 0,389 € View 0,372 € 0,359 € 0,341 € 0,295 € 0,286 €	Min.: 1 Mult.: 1	4.9152 MHz	18 pF	30 PPM	50 PPM		- 40 C	+ 85 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 5MHz 18pF -10C +70C ECS-50-18-4XEN ECS 1: 0,456 € 223In Stock	Mfr. Part No. ECS-50-18-4XEN Mouser Part No 520-50-18-4XEN	ECS	Crystals 5MHz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	223In Stock	0,456 € 0,366 € 0,329 € 0,321 € View 0,311 € 0,293 € 0,284 € 0,28 € 0,274 €	Min.: 1 Mult.: 1	5 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 40 C	+ 85 C	Radial	120 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 50MHz 18pF 50ppm -40C +85C ECS-500-18-4X-EN ECS 1: 0,507 € 638In Stock	Mfr. Part No. ECS-500-18-4X-EN Mouser Part No 520-500-18-4XEN	ECS	Crystals 50MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	638In Stock	0,507 € 0,44 € 0,399 € 0,367 € View 0,351 € 0,342 € 0,32 € 0,299 € 0,291 €	Min.: 1 Mult.: 1	50 MHz	18 pF	30 PPM	50 PPM		- 40 C	+ 85 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 6.0000MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,100 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) ECS-60-18-4XEN ECS 1: 0,507 € 728In Stock	Mfr. Part No. ECS-60-18-4XEN Mouser Part No 520-60-18-4XEN	ECS	Crystals CRYSTAL 6.0000MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,100 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) Learn More about ECS hc 49usx quartz crystals	Datasheet	728In Stock	0,507 € 0,439 € 0,399 € 0,367 € View 0,351 € 0,35 € 0,305 € 0,296 €	Min.: 1 Mult.: 1	6 MHz	18 pF	30 PPM	50 PPM		- 40 C	+ 85 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 6.144MHz 18pF 50ppm -40C +85C ECS-61-18-4XEN ECS 1: 0,525 € 10In Stock	Mfr. Part No. ECS-61-18-4XEN Mouser Part No 520-61-18-4XEN	ECS	Crystals 6.144MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	10In Stock	0,525 € 0,412 € 0,366 € 0,356 € View 0,321 € 0,303 € 0,292 € 0,287 € 0,28 €	Min.: 1 Mult.: 1	6.144 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 40 C	+ 85 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 7.3728MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,80 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) ECS-73-18-4XEN ECS 1: 0,525 € 192In Stock	Mfr. Part No. ECS-73-18-4XEN Mouser Part No 520-73-18-4XEN	ECS	Crystals CRYSTAL 7.3728MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,80 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm) Learn More about ECS hc 49usx quartz crystals	Datasheet	192In Stock	0,525 € 0,45 € 0,408 € 0,374 € View 0,351 € 0,328 € 0,307 € 0,283 € 0,273 €	Min.: 1 Mult.: 1	7.3728 MHz	18 pF	30 PPM	50 PPM		- 40 C	+ 85 C	Radial	80 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk