Crystals – Mouser Denmark

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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 27.0Mhz 18pF -10C +70C ECS-270-18-4X-F ECS 1: 3,72 kr. 270In Stock	Mfr. Part No. ECS-270-18-4X-F Mouser Part No 520-HCU270-18-4X-F	ECS	Crystals 27.0Mhz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	270In Stock	3,72 kr. 3,10 kr. 2,73 kr. 2,66 kr. View 2,40 kr. 2,27 kr. 2,18 kr. 2,07 kr.	Min.: 1 Mult.: 1	27 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	3.8 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.579545MHz 17pF ECS-35-17-4X ECS 1: 3,66 kr. 1.247In Stock	Mfr. Part No. ECS-35-17-4X Mouser Part No 520-HCU357-17X	ECS	Crystals 3.579545MHz 17pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1.247In Stock	3,66 kr. 2,91 kr. 2,63 kr. 2,23 kr. View 2,13 kr. 2,02 kr.	Min.: 1 Mult.: 1	3.579545 MHz	17 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.579545MHz SERIES ECS-35-S-4X ECS 1: 4,10 kr. 120In Stock 1.000Expected 02/11/2026	Mfr. Part No. ECS-35-S-4X Mouser Part No 520-HCU357-SX	ECS	Crystals 3.579545MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	120In Stock 1.000Expected 02/11/2026	4,10 kr. 3,22 kr. 2,87 kr. 2,78 kr. View 2,68 kr. 2,36 kr. 2,29 kr. 2,18 kr.	Min.: 1 Mult.: 1	3.579545 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.6864MHz 100ppm ECS-36-18-4XDN ECS 1: 7,12 kr. 91In Stock	Mfr. Part No. ECS-36-18-4XDN Mouser Part No 520-HCU368-18DNX	ECS	Crystals 3.6864MHz 100ppm Learn More about ECS hc 49usx quartz crystals	Datasheet	91In Stock	7,12 kr. 5,62 kr. 5,16 kr. 4,95 kr. View 4,83 kr. 4,68 kr. 4,42 kr. 4,33 kr.	Min.: 1 Mult.: 1	3.6864 MHz	18 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.6864MHz 18pF ECS-36-18-4X ECS 1: 3,60 kr. 2.767In Stock	Mfr. Part No. ECS-36-18-4X Mouser Part No 520-HCU368-18X	ECS	Crystals 3.6864MHz 18pF Learn More about ECS hc 49usx quartz crystals	Datasheet	2.767In Stock	3,60 kr. 2,90 kr. 2,63 kr. 2,55 kr. View 2,48 kr. 2,33 kr. 2,27 kr.	Min.: 1 Mult.: 1	3.6864 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.6864MHz 20pF EX/TEMP HC-49US ECS-36-20-4XDN ECS 1: 4,36 kr. 571In Stock	Mfr. Part No. ECS-36-20-4XDN Mouser Part No 520-HCU368-20DNX	ECS	Crystals 3.6864MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	571In Stock	4,36 kr. 3,45 kr. 3,15 kr. 3,14 kr. View 2,78 kr. 2,66 kr. 2,45 kr. 2,35 kr.	Min.: 1 Mult.: 1	3.6864 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 3.6864MHz SERIES ECS-36-S-4X ECS 1: 4,10 kr. 14In Stock	Mfr. Part No. ECS-36-S-4X Mouser Part No 520-HCU368-SX	ECS	Crystals 3.6864MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	14In Stock	4,10 kr. 3,22 kr. 2,87 kr. 2,78 kr. View 2,45 kr. 2,31 kr. 2,21 kr. 2,12 kr.	Min.: 1 Mult.: 1	3.6864 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	200 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4MHz 20pF EX/TEMP HC-49US ECS-40-20-4XDN ECS 1: 4,17 kr. 1.968In Stock	Mfr. Part No. ECS-40-20-4XDN Mouser Part No 520-HCU400-20DNX	ECS	Crystals 4MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	1.968In Stock	4,17 kr. 3,28 kr. 2,89 kr. 2,82 kr. View 2,73 kr. 2,58 kr. 2,39 kr.	Min.: 1 Mult.: 1	4 MHz	20 pF	30 PPM	100 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 4MHz 20pF ECS-40-20-4X ECS 1: 3,46 kr. 3.287In Stock 5.000Expected 06/11/2026	Mfr. Part No. ECS-40-20-4X Mouser Part No 520-HCU400-20X	ECS	Crystals 4MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	3.287In Stock 5.000Expected 06/11/2026	3,46 kr. 2,77 kr. 2,34 kr. 2,27 kr. View 2,19 kr. 2,18 kr. 2,06 kr.	Min.: 1 Mult.: 1	4 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4MHz SERIES ECS-40-S-4X ECS 1: 3,85 kr. 304In Stock	Mfr. Part No. ECS-40-S-4X Mouser Part No 520-HCU400-SX	ECS	Crystals 4MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	304In Stock	3,85 kr. 3,04 kr. 2,73 kr. 2,66 kr. View 2,47 kr. 2,34 kr. 2,24 kr. 2,12 kr.	Min.: 1 Mult.: 1	4 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 4.032MHz ECS-40.3-20-4X ECS 1: 4,36 kr. 1.016In Stock	Mfr. Part No. ECS-40.3-20-4X Mouser Part No 520-HCU403-20X	ECS	Crystals CRYSTAL 4.032MHz Learn More about ECS hc 49usx quartz crystals	Datasheet	1.016In Stock	4,36 kr. 3,45 kr. 3,15 kr. 3,14 kr. View 3,10 kr. 2,66 kr. 2,45 kr. 2,35 kr.	Min.: 1 Mult.: 1	4.032 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 4.032MHz ECS-40.3-S-4X ECS 1: 4,10 kr. 9In Stock	Mfr. Part No. ECS-40.3-S-4X Mouser Part No 520-HCU403-SX	ECS	Crystals CRYSTAL 4.032MHz Learn More about ECS hc 49usx quartz crystals	Datasheet	9In Stock	4,10 kr. 3,22 kr. 2,87 kr. 2,63 kr. View 2,50 kr. 2,36 kr. 2,29 kr. 2,18 kr.	Min.: 1 Mult.: 1	4.032 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 4.096MHz ECS-41-20-4X ECS 1: 3,92 kr. 437In Stock	Mfr. Part No. ECS-41-20-4X Mouser Part No 520-HCU409-20X	ECS	Crystals CRYSTAL 4.096MHz Learn More about ECS hc 49usx quartz crystals	Datasheet	437In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,59 kr. View 2,42 kr. 2,30 kr. 2,19 kr. 2,08 kr.	Min.: 1 Mult.: 1	4.096 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4.194304MHz 12pF ECS-42-12-4X ECS 1: 3,92 kr. 936In Stock	Mfr. Part No. ECS-42-12-4X Mouser Part No 520-HCU419-12X	ECS	Crystals 4.194304MHz 12pF Learn More about ECS hc 49usx quartz crystals	Datasheet	936In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,66 kr. View 2,42 kr. 2,30 kr. 2,19 kr. 2,08 kr.	Min.: 1 Mult.: 1	4.194304 MHz	12 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals CRYSTAL 4.194304MHz ECS-42-16-4X ECS 1: 3,92 kr. 407In Stock	Mfr. Part No. ECS-42-16-4X Mouser Part No 520-HCU419-16X	ECS	Crystals CRYSTAL 4.194304MHz Learn More about ECS hc 49usx quartz crystals	Datasheet	407In 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	4.194304 MHz	16 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4.433618MHz 20pF ECS-44-20-4X ECS 1: 3,72 kr. 711In Stock	Mfr. Part No. ECS-44-20-4X Mouser Part No 520-HCU443-20X	ECS	Crystals 4.433618MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	711In Stock	3,72 kr. 2,96 kr. 2,68 kr. 2,66 kr. View 2,40 kr. 2,27 kr. 2,17 kr. 2,07 kr.	Min.: 1 Mult.: 1	4.433618 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4.9152MHz 20pF ECS-49-20-4X ECS 1: 3,92 kr. 1.082In Stock	Mfr. Part No. ECS-49-20-4X Mouser Part No 520-HCU491-20X	ECS	Crystals 4.9152MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1.082In Stock	3,92 kr. 3,10 kr. 2,73 kr. 2,66 kr. View 2,63 kr. 2,28 kr. 2,18 kr. 2,07 kr.	Min.: 1 Mult.: 1	4.9152 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 4.9152MHz SERIES ECS-49-S-4X ECS 1: 4,10 kr. 77In Stock	Mfr. Part No. ECS-49-S-4X Mouser Part No 520-HCU491-SX	ECS	Crystals 4.9152MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	77In Stock	4,10 kr. 3,22 kr. 2,72 kr. 2,60 kr. View 2,45 kr. 2,30 kr. 2,19 kr. 2,06 kr.	Min.: 1 Mult.: 1	4.9152 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	150 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 5MHz 20pF ECS-50-20-4X ECS 1: 3,92 kr. 478In Stock	Mfr. Part No. ECS-50-20-4X Mouser Part No 520-HCU500-20X	ECS	Crystals 5MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	478In Stock	3,92 kr. 3,07 kr. 2,71 kr. 2,63 kr. View 2,55 kr. 2,37 kr. 2,28 kr. 2,18 kr.	Min.: 1 Mult.: 1	5 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	120 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 5MHz SERIES ECS-50-S-4X ECS 1: 3,92 kr. 87In Stock	Mfr. Part No. ECS-50-S-4X Mouser Part No 520-HCU500-SX	ECS	Crystals 5MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	87In 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	5 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	120 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 5.0688MHz 20pF ECS-51-20-4X ECS 1: 3,92 kr. 491In Stock	Mfr. Part No. ECS-51-20-4X Mouser Part No 520-HCU506-20X	ECS	Crystals 5.0688MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	491In 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	5.0688 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	120 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 6MHz 32pF EX/TEMP HC-49US ECS-60-32-4XDN ECS 1: 4,56 kr. 100In Stock	Mfr. Part No. ECS-60-32-4XDN Mouser Part No 520-HCU600-32DNX	ECS	Crystals 6MHz 32pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	100In Stock	4,56 kr. 3,57 kr. 3,15 kr. 3,01 kr. View 2,78 kr. 2,66 kr. 2,45 kr. 2,33 kr.	Min.: 1 Mult.: 1	6 MHz	32 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	100 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 6MHz 32pF ECS-60-32-4X ECS 1: 3,72 kr. 777In Stock	Mfr. Part No. ECS-60-32-4X Mouser Part No 520-HCU600-32X	ECS	Crystals 6MHz 32pF Learn More about ECS hc 49usx quartz crystals	Datasheet	777In 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	6 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 6MHz SERIES ECS-60-S-4X ECS 1: 3,92 kr. 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	3,92 kr. 3,10 kr. 2,73 kr. 2,59 kr. View 2,46 kr. 2,31 kr. 2,25 kr. 2,12 kr.	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: 3,72 kr. 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	3,72 kr. 2,98 kr. 2,61 kr. 2,60 kr. View 2,52 kr. 2,42 kr. 2,18 kr. 2,07 kr.	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