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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 (JPY) 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 14.318180MHz 20pF EX/TEMP HC-49US ECS-143-20-4XDN ECS 1: ¥122.9 993In Stock	Mfr. Part # ECS-143-20-4XDN Mouser Part # 520-HCU1431-20DNX	ECS	Crystals 14.318180MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	993In Stock	¥122.9 ¥96.5 ¥90 ¥81.9 View ¥74.2 ¥70.6 ¥67.4 ¥64.3	Min.: 1 Mult.: 1	14.31818 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
Crystals 14.7456MHz 20pF ECS-147.4-20-4X ECS 1: ¥96.3 614In Stock	Mfr. Part # ECS-147.4-20-4X Mouser Part # 520-HCU1474-20X	ECS	Crystals 14.7456MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	614In Stock	¥96.3 ¥76.7 ¥69.9 ¥66.9 View ¥65.1 ¥58.8 ¥56.1 ¥52.8	Min.: 1 Mult.: 1	14.7456 MHz	20 pF	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 14.7456MHz SERIES ECS-147.4-S-4X ECS 1: ¥106.3 52In Stock	Mfr. Part # ECS-147.4-S-4X Mouser Part # 520-HCU1474-SX	ECS	Crystals 14.7456MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	52In Stock	¥106.3 ¥83.4 ¥74.4 ¥71.9 View ¥69.4 ¥60 ¥57.3 ¥54.8	Min.: 1 Mult.: 1	14.7456 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 15MHz SERIES ECS-150-S-4X ECS 1: ¥101.3 719In Stock	Mfr. Part # ECS-150-S-4X Mouser Part # 520-HCU1500-SX	ECS	Crystals 15MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	719In Stock	¥101.3 ¥80.2 ¥70.6 ¥68.8 View ¥63.8 ¥60 ¥58.1 ¥54.8	Min.: 1 Mult.: 1	15 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 15.36MHz 20pF ECS-153-20-4X ECS 1: ¥101.3 744In Stock	Mfr. Part # ECS-153-20-4X Mouser Part # 520-HCU1536-20X	ECS	Crystals 15.36MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	744In Stock	¥101.3 ¥80.2 ¥74.4 ¥71.3 View ¥62.3 ¥59 ¥56.3 ¥53.7	Min.: 1 Mult.: 1	15.36 MHz	20 pF	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 16MHz 20pF EX/TEMP HC-49US ECS-160-20-4XDN ECS 1: ¥101.3 344In Stock	Mfr. Part # ECS-160-20-4XDN Mouser Part # 520-HCU1600-20DNX	ECS	Crystals 16MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	344In Stock	¥101.3 ¥80.2 ¥70.6 ¥68.8 View ¥66.6 ¥64.1 ¥60.6 ¥57.8	Min.: 1 Mult.: 1	16 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
Crystals 16MHz 20pF ECS-160-20-4X ECS 1: ¥101.3 1,513In Stock 7,200On Order	Mfr. Part # ECS-160-20-4X Mouser Part # 520-HCU1600-20X	ECS	Crystals 16MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,513In Stock 7,200On Order On Order Ship Dates Mfr. #: ECS-160-20-4X Stock: 1,513 Can Ship Immediately On Order: 4,400 Expected 2/1/2027 2,800 Expected 2/9/2027 Factory Lead-Time: 17 Weeks	¥101.3 ¥79.6 ¥68.9 ¥67.1 View ¥66.9 ¥63.3 ¥60 ¥58	Min.: 1 Mult.: 1	16 MHz	20 pF	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 16MHz SERIES ECS-160-S-4X ECS 1: ¥101.3 373In Stock	Mfr. Part # ECS-160-S-4X Mouser Part # 520-HCU1600-SX	ECS	Crystals 16MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	373In Stock	¥101.3 ¥80.2 ¥70.6 ¥66.9 View ¥62.3 ¥59 ¥56.1 ¥53.5	Min.: 1 Mult.: 1	16 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 18.0Mhz 20pF -10C +70C ECS-180-20-4X ECS 1: ¥96.3 247In Stock	Mfr. Part # ECS-180-20-4X Mouser Part # 520-HCU180-20-4X	ECS	Crystals 18.0Mhz 20pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	247In Stock	¥96.3 ¥76.7 ¥70.6 ¥65.1 View ¥62.1 ¥58.8 ¥56.1 ¥53.5	Min.: 1 Mult.: 1	18 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	Radial	40 Ohms	500 uW	11.35 mm	3.8 mm	3.5 mm	HCS-49USX	Bulk
Crystals 18MHz SERIES ECS-180-S-4X ECS 1: ¥101.3 962In Stock	Mfr. Part # ECS-180-S-4X Mouser Part # 520-HCU1800-SX	ECS	Crystals 18MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	962In Stock	¥101.3 ¥80.2 ¥70.6 ¥68.8 View ¥62.3 ¥59 ¥56.3 ¥53.7	Min.: 1 Mult.: 1	18 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 18.432MHz 18pF -10C +70C ECS-184-18-4X ECS 1: ¥91.4 643In Stock 400Expected 11/6/2026	Mfr. Part # ECS-184-18-4X Mouser Part # 520-HCU184-18-4X	ECS	Crystals 18.432MHz 18pF -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	643In Stock 400Expected 11/6/2026	¥91.4 ¥73.4 ¥70.3 ¥62.1 View ¥58.6 ¥56.6 ¥54	Min.: 1 Mult.: 1	18.432 MHz	18 pF	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 18.432000MHz 20pF EX/TEMP HC-49US ECS-184-20-4XDN ECS 1: ¥108 293In Stock	Mfr. Part # ECS-184-20-4XDN Mouser Part # 520-HCU1843-20DNX	ECS	Crystals 18.432000MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	293In Stock	¥108 ¥85 ¥74.9 ¥72.9 View ¥70.8 ¥66.8 ¥59.5	Min.: 1 Mult.: 1	18.432 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
Crystals 18.432MHz 20pF ECS-184-20-4X ECS 1: ¥101.3 112In Stock	Mfr. Part # ECS-184-20-4X Mouser Part # 520-HCU1843-20X	ECS	Crystals 18.432MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	112In Stock	¥101.3 ¥80.2 ¥70.6 ¥66.9 View ¥62.8 ¥59.5 ¥56.6 ¥53.8	Min.: 1 Mult.: 1	18.432 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 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 ECS-196.6-20-4X ECS 1: ¥104.6 415In Stock	Mfr. Part # ECS-196.6-20-4X Mouser Part # 520-HCU1966-20X	ECS	Crystals 19.6608MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	415In Stock	¥104.6 ¥82.2 ¥74.4 ¥66.9 View ¥63.8 ¥60 ¥58.1 ¥54.8	Min.: 1 Mult.: 1	19.6608 MHz	20 pF	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 20MHz 20pF EX/TEMP HC-49US ECS-200-20-4XDN ECS 1: ¥112.9 836In Stock	Mfr. Part # ECS-200-20-4XDN Mouser Part # 520-HCU2000-20DNX	ECS	Crystals 20MHz 20pF EX/TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	836In Stock	¥112.9 ¥89.4 ¥81.6 ¥79.4 View ¥76.9 ¥72.6 ¥63.6 ¥60.8	Min.: 1 Mult.: 1	20 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 20MHz 20pF ECS-200-20-4X ECS 1: ¥101.3 1,098In Stock	Mfr. Part # ECS-200-20-4X Mouser Part # 520-HCU2000-20X	ECS	Crystals 20MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,098In Stock	¥101.3 ¥79.4 ¥70.3 ¥68.1 View ¥66.8 ¥65.4 ¥59.5 ¥56.1	Min.: 1 Mult.: 1	20 MHz	20 pF	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 20MHz SERIES ECS-200-S-4X ECS 1: ¥101.3 1,000In Stock	Mfr. Part # ECS-200-S-4X Mouser Part # 520-HCU2000-SX	ECS	Crystals 20MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	1,000In Stock	¥101.3 ¥80.2 ¥70.6 ¥68.3 View ¥59 ¥56.3 ¥53.5	Min.: 1 Mult.: 1	20 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 22.1184MHz Series -10C +70C ECS-221-S-4X ECS 1: ¥99.7 120In Stock	Mfr. Part # ECS-221-S-4X Mouser Part # 520-HCU221-S-4X	ECS	Crystals 22.1184MHz Series -10C +70C Learn More about ECS hc 49usx quartz crystals	Datasheet	120In Stock	¥99.7 ¥79.1 ¥69.3 ¥66.1 View ¥64.4 ¥60 ¥57.3 ¥54	Min.: 1 Mult.: 1	22.1184 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24MHz 12pF ECS-240-12-4X ECS 1: ¥98 909In Stock	Mfr. Part # ECS-240-12-4X Mouser Part # 520-HCU2400-12X	ECS	Crystals 24MHz 12pF Learn More about ECS hc 49usx quartz crystals	Datasheet	909In Stock	¥98 ¥78.1 ¥68.8 ¥66.9 View ¥64.8 ¥61.1 ¥57	Min.: 1 Mult.: 1	24 MHz	12 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24.0-MHz 16pF ECS-240-16-4X ECS 1: ¥101.3 1,344In Stock	Mfr. Part # ECS-240-16-4X Mouser Part # 520-HCU2400-16X	ECS	Crystals 24.0-MHz 16pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,344In Stock	¥101.3 ¥80.2 ¥70.6 ¥68.8 View ¥66.6 ¥59.5 ¥56.6 ¥53.8	Min.: 1 Mult.: 1	24 MHz	16 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24MHz 20pF EX-TEMP HC-49US ECS-240-20-4XDN ECS 1: ¥122.9 642In Stock	Mfr. Part # ECS-240-20-4XDN Mouser Part # 520-HCU2400-20DNX	ECS	Crystals 24MHz 20pF EX-TEMP HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	642In Stock	¥122.9 ¥97.5 ¥87.2 ¥83.7 View ¥76.9 ¥70.4 ¥65.4 ¥62.6	Min.: 1 Mult.: 1	24 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24MHz 20pF ECS-240-20-4X ECS 1: ¥88 1,205In Stock	Mfr. Part # ECS-240-20-4X Mouser Part # 520-HCU2400-20X	ECS	Crystals 24MHz 20pF Learn More about ECS hc 49usx quartz crystals	Datasheet	1,205In Stock	¥88 ¥69.9 ¥65.1 ¥64.1 View ¥59.1 ¥58.3 ¥56.1	Min.: 1 Mult.: 1	24 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24MHz SERIES ECS-240-S-4X ECS 1: ¥96.3 162In Stock	Mfr. Part # ECS-240-S-4X Mouser Part # 520-HCU2400-SX	ECS	Crystals 24MHz SERIES Learn More about ECS hc 49usx quartz crystals	Datasheet	162In Stock	¥96.3 ¥76.7 ¥70.6 ¥68.8 View ¥66.6 ¥58.8 ¥56.3 ¥53.5	Min.: 1 Mult.: 1	24 MHz	Series	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 24.576000MHz 20pF HC-49US ECS-245.7-20-4X ECS 1: ¥96.3 558In Stock	Mfr. Part # ECS-245.7-20-4X Mouser Part # 520-HCU2457-20X	ECS	Crystals 24.576000MHz 20pF HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	558In Stock	¥96.3 ¥76.7 ¥70.6 ¥68.8 View ¥66.6 ¥58.8 ¥56.3 ¥53.5	Min.: 1 Mult.: 1	24.576 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk
Crystals 25MHz 18pF HC-49US ECS-250-18-4X-F ECS 1: ¥104.6 1,459In Stock	Mfr. Part # ECS-250-18-4X-F Mouser Part # 520-HCU2500-18X	ECS	Crystals 25MHz 18pF HC-49US Learn More about ECS hc 49usx quartz crystals	Datasheet	1,459In Stock	¥104.6 ¥82.2 ¥72.1 ¥70.3 View ¥68.3 ¥61.6 ¥59.8 ¥57.1	Min.: 1 Mult.: 1	25 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	Radial	30 Ohms	500 uW	11.35 mm	4.65 mm	3.5 mm	HCS-49USX	Bulk

3.579545 MHz
3.6864 MHz
4 MHz
4.032 MHz
4.096 MHz
4.194304 MHz
4.433618 MHz
4.9152 MHz
5 MHz
5.0688 MHz
6 MHz
6.144 MHz
6.5 MHz
7.3728 MHz
7.68 MHz
8 MHz
8.5 MHz
9 MHz
9.216 MHz
9.545 MHz