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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 9MHz 18pF 50ppm -40C +85C ECS-90-18-4XEN ECS 1: €0.507 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	€0.507 €0.44 €0.399 €0.367 View €0.351 €0.342 €0.299 €0.291	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: €0.507 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	€0.507 €0.44 €0.399 €0.367 View €0.351 €0.342 €0.31 €0.286 €0.275	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: €0.447 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 €0.447 €0.386 €0.351 €0.323 Reel €0.308 View €0.30 €0.292 €0.275 €0.268	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: €0.292 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	€0.292 €0.257 €0.233 €0.214 View €0.205 €0.20 €0.183 €0.174 €0.165	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: €0.378 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	€0.378 €0.323 €0.307 €0.28 View €0.264 €0.251 €0.237 €0.224 €0.214	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: €0.292 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	€0.292 €0.257 €0.233 €0.214 View €0.205 €0.20 €0.194 €0.172 €0.163	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: €0.292 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	€0.292 €0.257 €0.233 €0.214 View €0.205 €0.20 €0.183 €0.169 €0.162	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: €0.292 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	€0.292 €0.257 €0.233 €0.214 View €0.205 €0.20 €0.184 €0.175 €0.165	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: €0.542 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 €0.542 €0.427 €0.379 Reel €0.379 €0.368 View €0.354 €0.316 €0.298 €0.292 €0.284	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: €0.396 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	€0.396 €0.31 €0.276 €0.273 View €0.267 €0.25 €0.242 €0.239 €0.236	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: €0.413 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	€0.413 €0.327 €0.306 €0.261 View €0.25 €0.237 €0.233 €0.218	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: €0.413 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	€0.413 €0.327 €0.287 €0.279 View €0.264 €0.249	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: €0.413 1,142In 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	1,142In Stock	€0.413 €0.363 €0.329 €0.303 View €0.289 €0.282 €0.273 €0.254 €0.241	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: €0.413 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	€0.413 €0.363 €0.329 €0.303 View €0.289 €0.282 €0.273 €0.252 €0.24	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: €0.525 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	€0.525 €0.415 €0.366 €0.356 View €0.345 €0.316 €0.303 €0.295 €0.29	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: €0.525 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	€0.525 €0.458 €0.415 €0.382 View €0.366 €0.33 €0.312 €0.299	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: €0.516 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	€0.516 €0.446 €0.415 €0.382 View €0.366 €0.356 €0.326 €0.307 €0.294	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: €0.525 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	€0.525 €0.458 €0.415 €0.382 View €0.366 €0.352 €0.329 €0.308 €0.299	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: €0.482 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	€0.482 €0.386 €0.35 €0.34 View €0.329 €0.311 €0.30 €0.294 €0.288	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: €0.516 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	€0.516 €0.446 €0.415 €0.382 View €0.366 €0.356 €0.309 €0.295	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: €0.525 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	€0.525 €0.407 €0.329 €0.314 View €0.312 €0.299 €0.292 €0.286 €0.284	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: €0.611 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	€0.611 €0.528 €0.479 €0.44 View €0.421 €0.411 €0.378 €0.359 €0.33	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: €0.516 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	€0.516 €0.452 €0.409 €0.377 View €0.36 €0.351 €0.341 €0.306 €0.293	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: €0.447 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	€0.447 €0.446 €0.415 €0.382 View €0.366 €0.312 €0.298 €0.286	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: €0.525 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	€0.525 €0.494 €0.469 €0.426 View €0.402 €0.352 €0.329 €0.31 €0.294	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