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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 (USD) 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 9MHz 18pF 50ppm -40C +85C ECS-90-18-4XEN ECS 1: $0.59 961In Stock	Mfr. Part No. ECS-90-18-4XEN Mouser Part No 520-90-18-4XEN	ECS	Crystals 9MHz 18pF 50ppm -40C +85C Learn More about ECS hc 49usx quartz crystals	Datasheet	961In Stock	$0.59 $0.512 $0.464 $0.427 View $0.408 $0.398 $0.348 $0.338	Min.: 1 Mult.: 1	9 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 9.2160MHz 18pF -10C +70C ECS-92.1-18-4XEN ECS 1: $0.59 206In Stock	Mfr. Part No. ECS-92.1-18-4XEN Mouser Part No 520-92.1-18-4XEN	ECS	Crystals 9.2160MHz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	206In Stock	$0.59 $0.512 $0.464 $0.427 View $0.408 $0.398 $0.361 $0.332 $0.32	Min.: 1 Mult.: 1	9.216 MHz	18 pF	30 PPM	50 PPM	11.35 mm x 4.65 mm	- 40 C	+ 85 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals HC-49USX, 11.0592MHz, 20pF, +/-30ppm, +/-50ppm, -40C +85 C, RoHS ECS-110.5-20-4X-EN ECS 1: $0.52 380In Stock	Mfr. Part No. ECS-110.5-20-4X-EN Mouser Part No 520-ECS-110.5-204XEN	ECS	Crystals HC-49USX, 11.0592MHz, 20pF, +/-30ppm, +/-50ppm, -40C +85 C, RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	380In Stock	Cut Tape $0.52 $0.449 $0.408 $0.375 Reel $0.358 View $0.349 $0.339 $0.32 $0.312	Min.: 1 Mult.: 1 : 200	11.0592 MHz	20 pF	30 PPM	50 PPM	11.35 mm x 3.5 mm	- 40 C	+ 85 C	Radial	40 Ohms	500 uW	11.35 mm	5 mm	3.5 mm		Reel, Cut Tape
Crystals 16.000 MHz 12 pF HC-49USX +/-30/30 ppm -20 - +70C RoHS ECS-160-12-4X-GM ECS 1: $0.34 438In Stock	Mfr. Part No. ECS-160-12-4X-GM Mouser Part No 520-ECS-160-12-4X-GM	ECS	Crystals 16.000 MHz 12 pF HC-49USX +/-30/30 ppm -20 - +70C RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	438In Stock	$0.34 $0.299 $0.271 $0.249 View $0.238 $0.232 $0.213 $0.202 $0.192	Min.: 1 Mult.: 1	16 MHz	12 pF	30 PPM	30 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 16.000 MHz 18 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS ECS-160-18-4X-EM ECS 1: $0.44 666In Stock	Mfr. Part No. ECS-160-18-4X-EM Mouser Part No 520-ECS-160-18-4X-EM	ECS	Crystals 16.000 MHz 18 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	666In Stock	$0.44 $0.376 $0.357 $0.325 View $0.307 $0.292 $0.275 $0.26 $0.249	Min.: 1 Mult.: 1	16 MHz	18 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 16.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS ECS-160-20-4X-EM ECS 1: $0.34 371In Stock	Mfr. Part No. ECS-160-20-4X-EM Mouser Part No 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	371In Stock	$0.34 $0.299 $0.271 $0.249 View $0.238 $0.232 $0.225 $0.20 $0.19	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 20.000 MHz 18 pF HC-49USX +/-30/30 ppm -20 - +70C RoHS ECS-200-18-4X-GM ECS 1: $0.34 495In Stock	Mfr. Part No. ECS-200-18-4X-GM Mouser Part No 520-ECS-200-18-4X-GM	ECS	Crystals 20.000 MHz 18 pF HC-49USX +/-30/30 ppm -20 - +70C RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	495In Stock	$0.34 $0.299 $0.271 $0.249 View $0.238 $0.232 $0.213 $0.196 $0.188	Min.: 1 Mult.: 1	20 MHz	18 pF	30 PPM	30 PPM	11.35 mm x 4.65 mm	- 20 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm		Bulk
Crystals 20.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS ECS-200-20-4X-EM ECS 1: $0.34 611In Stock	Mfr. Part No. ECS-200-20-4X-EM Mouser Part No 520-ECS-200-20-4X-EM	ECS	Crystals 20.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	611In Stock	$0.34 $0.299 $0.271 $0.249 View $0.238 $0.232 $0.214 $0.203 $0.192	Min.: 1 Mult.: 1	20 MHz	20 pF	30 PPM	50 PPM	11.35 mm x 4.65 mm	- 20 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm		Bulk
Crystals HC-49USX, 4MHz, 18pF, +/-30ppm, +/-50ppm, -10C +70 C, RoHS ECS-40-18-4X ECS 1: $0.63 220In Stock	Mfr. Part No. ECS-40-18-4X Mouser Part No 520-ECS-40-18-4X	ECS	Crystals HC-49USX, 4MHz, 18pF, +/-30ppm, +/-50ppm, -10C +70 C, RoHS Learn More about ECS hc 49usx quartz crystals	Datasheet	220In Stock	Cut Tape $0.63 $0.496 $0.441 Reel $0.441 $0.428 View $0.412 $0.368 $0.347 $0.34 $0.33	Min.: 1 Mult.: 1 : 200	4 MHz	18 pF	30 PPM	50 PPM	11.35 mm x 3.5 mm	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	3.5 mm	3.5 mm		Reel, Cut Tape
Crystals CRYSTAL 8MHZ 18pF 10ppm 10ppm -20 C 70 C ECS-80-18-4X-CKM ECS 1: $0.46 1,595In Stock	Mfr. Part No. ECS-80-18-4X-CKM Mouser Part No 520-ECS-80-18-4X-CKM	ECS	Crystals CRYSTAL 8MHZ 18pF 10ppm 10ppm -20 C 70 C Learn More about ECS hc 49usx quartz crystals	Datasheet	1,595In Stock	$0.46 $0.361 $0.321 $0.318 View $0.31 $0.291 $0.281 $0.278 $0.274	Min.: 1 Mult.: 1	8 MHz	18 pF	10 PPM	10 PPM	HC-49/USX	- 20 C	+ 70 C	Radial	80 Ohms	500 uW	11.35 mm	5 mm	3.5 mm	HC-49USX	Bulk
Crystals CRYSTAL 10MHZ 18pF 10ppm 10ppm -20 C 70 C ECS-100-18-4X-CKM ECS 1: $0.48 851In Stock	Mfr. Part No. ECS-100-18-4X-CKM Mouser Part No 520-ECS100-18-4X-CKM	ECS	Crystals CRYSTAL 10MHZ 18pF 10ppm 10ppm -20 C 70 C Learn More about ECS hc 49usx quartz crystals	Datasheet	851In Stock	$0.48 $0.38 $0.356 $0.304 View $0.291 $0.275 $0.271 $0.253	Min.: 1 Mult.: 1	10 MHz	18 pF	10 PPM	10 PPM	HC-49/USX	- 20 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	5 mm	3.5 mm	HC-49USX	Bulk
Crystals CRYSTAL 12MHZ 18pF 10ppm 10ppm -20 C 70 C ECS-120-18-4X-CKM ECS 1: $0.48 2,762In Stock	Mfr. Part No. ECS-120-18-4X-CKM Mouser Part No 520-ECS120-18-4X-CKM	ECS	Crystals CRYSTAL 12MHZ 18pF 10ppm 10ppm -20 C 70 C Learn More about ECS hc 49usx quartz crystals	Datasheet	2,762In Stock	$0.48 $0.38 $0.334 $0.324 View $0.307 $0.29 $0.289	Min.: 1 Mult.: 1	12 MHz	18 pF	10 PPM	10 PPM	HC-49/USX	- 20 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	5 mm	3.5 mm	HC-49USX	Bulk
Crystals CRYSTAL 20MHZ 18pF 10ppm 10ppm -20 C 70 C ECS-200-18-4X-CKM ECS 1: $0.48 1,137In Stock	Mfr. Part No. ECS-200-18-4X-CKM Mouser Part No 520-ECS200-18-4X-CKM	ECS	Crystals CRYSTAL 20MHZ 18pF 10ppm 10ppm -20 C 70 C Learn More about ECS hc 49usx quartz crystals	Datasheet	1,137In Stock	$0.48 $0.422 $0.383 $0.352 View $0.336 $0.328 $0.318 $0.295 $0.28	Min.: 1 Mult.: 1	20 MHz	18 pF	10 PPM	10 PPM	HC-49/USX	- 20 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	5 mm	3.5 mm	HC-49USX	Bulk
Crystals CRYSTAL 25MHZ 18pF 10ppm 10ppm -20 C 70 C ECS-250-18-4X-CKM ECS 1: $0.48 1,189In Stock	Mfr. Part No. ECS-250-18-4X-CKM Mouser Part No 520-ECS250-18-4X-CKM	ECS	Crystals CRYSTAL 25MHZ 18pF 10ppm 10ppm -20 C 70 C Learn More about ECS hc 49usx quartz crystals	Datasheet	1,189In Stock	$0.48 $0.422 $0.383 $0.352 View $0.336 $0.328 $0.318 $0.293 $0.279	Min.: 1 Mult.: 1	25 MHz	18 pF	10 PPM	10 PPM	HC-49/USX	- 20 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	5 mm	3.5 mm	HC-49USX	Bulk
Crystals 10MHz 18pF ECS-100-18-4X ECS 1: $0.61 1,658In Stock	Mfr. Part No. ECS-100-18-4X Mouser Part No 520-HCU1000-18X	ECS	Crystals 10MHz 18pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,658In Stock	$0.61 $0.483 $0.425 $0.414 View $0.401 $0.367 $0.352 $0.343 $0.337	Min.: 1 Mult.: 1	10 MHz	18 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 10MHz SERIES ECS-100-S-4X ECS 1: $0.61 696In Stock 800Expected 10/11/2026	Mfr. Part No. ECS-100-S-4X Mouser Part No 520-HCU1000-SX	ECS	Crystals 10MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	696In Stock 800Expected 10/11/2026	$0.61 $0.532 $0.483 $0.444 View $0.425 $0.384 $0.363 $0.348	Min.: 1 Mult.: 1	10 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 10.738635MHz SERIES ECS-107.3-S-4X ECS 1: $0.60 928In Stock	Mfr. Part No. ECS-107.3-S-4X Mouser Part No 520-HCU1073-SX	ECS	Crystals 10.738635MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	928In Stock	$0.60 $0.519 $0.483 $0.444 View $0.425 $0.414 $0.379 $0.357 $0.342	Min.: 1 Mult.: 1	10.738635 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 11MHz SERIES ECS-110-S-4X ECS 1: $0.61 439In Stock	Mfr. Part No. ECS-110-S-4X Mouser Part No 520-HCU1100-SX	ECS	Crystals 11MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	439In Stock	$0.61 $0.532 $0.483 $0.444 View $0.425 $0.409 $0.382 $0.358 $0.348	Min.: 1 Mult.: 1	11 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 11.0592MHz 20pF ECS-110.5-20-4X ECS 1: $0.56 1,240In Stock	Mfr. Part No. ECS-110.5-20-4X Mouser Part No 520-HCU1105-20X	ECS	Crystals 11.0592MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,240In Stock	$0.56 $0.449 $0.407 $0.395 View $0.382 $0.362 $0.349 $0.342 $0.335	Min.: 1 Mult.: 1	11.0592 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 11.0592MHz 32pF ECS-110.5-32-4X ECS 1: $0.60 1,007In Stock	Mfr. Part No. ECS-110.5-32-4X Mouser Part No 520-HCU1105-32X	ECS	Crystals 11.0592MHz 32pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,007In Stock	$0.60 $0.519 $0.483 $0.444 View $0.425 $0.414 $0.359 $0.343	Min.: 1 Mult.: 1	11.0592 MHz	32 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 11.0592MHz SERIES ECS-110.5-S-4X ECS 1: $0.61 1,166In Stock	Mfr. Part No. ECS-110.5-S-4X Mouser Part No 520-HCU1105-SX	ECS	Crystals 11.0592MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	1,166In Stock	$0.61 $0.473 $0.383 $0.365 View $0.363 $0.348 $0.34 $0.333 $0.33	Min.: 1 Mult.: 1	11.0592 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 12MHz 20pF EX/TEMP HC-49US ECS-120-20-4XDN ECS 1: $0.71 414In Stock	Mfr. Part No. ECS-120-20-4XDN Mouser Part No 520-HCU1200-20DNX	ECS	Crystals 12MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	414In Stock	$0.71 $0.614 $0.557 $0.512 View $0.49 $0.478 $0.439 $0.418 $0.384	Min.: 1 Mult.: 1	12 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	60 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 12MHz 32pF ECS-120-32-4X ECS 1: $0.60 1,962In Stock	Mfr. Part No. ECS-120-32-4X Mouser Part No 520-HCU1200-32X	ECS	Crystals 12MHz 32pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,962In Stock	$0.60 $0.525 $0.476 $0.438 View $0.419 $0.408 $0.396 $0.356 $0.341	Min.: 1 Mult.: 1	12 MHz	32 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 12MHz SERIES ECS-120-S-4X ECS 1: $0.52 885In Stock	Mfr. Part No. ECS-120-S-4X Mouser Part No 520-HCU1200-SX	ECS	Crystals 12MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	885In Stock	$0.52 $0.519 $0.483 $0.444 View $0.425 $0.363 $0.346 $0.332	Min.: 1 Mult.: 1	12 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 12.288MHz Series -10C +70C ECS-122.8-20-4X ECS 1: $0.61 436In Stock	Mfr. Part No. ECS-122.8-20-4X Mouser Part No 520-HCU122.8-20-4X	ECS	Crystals 12.288MHz Series -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	436In Stock	$0.61 $0.574 $0.545 $0.495 View $0.468 $0.409 $0.382 $0.36 $0.342	Min.: 1 Mult.: 1	12.288 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	60 Ohms	500 uW	11.35 mm	3.8 mm	3.5 mm	HCS-49USX	Bulk