.hide-partial { max-height: none; } .show-more { display: none; }

4 MHz Crystals

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 195

Applied Filters:

Frequency = 4 MHz

Manufacturer

Load Capacitance

Tolerance

Frequency Stability

Package/Case

Minimum Operating Temperature

Maximum Operating Temperature

Termination Style

ESR

Drive Level

Length

Width

Height

Series

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	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 4MHz 18pF 100ppm -40C +85C ECS-40-18-18-TR ECS 1: $3.70 239In Stock 1,000Expected 08/06/2027	Mfr. Part No. ECS-40-18-18-TR Mouser Part No 520-40-18-18-TR	ECS	Crystals 4MHz 18pF 100ppm -40C +85C	Datasheet	239In Stock 1,000Expected 08/06/2027	Cut Tape $3.70 $3.22 $3.04 $2.92 $2.86 Reel $2.86 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	18 pF	30 PPM	100 PPM	11.8 mm x 5.5 mm	- 40 C	+ 85 C	SMD/SMT	150 Ohms	100 uW	11.8 mm	5.5 mm	2.5 mm	CSM12	Reel, Cut Tape, MouseReel
Crystals 4MHz 18pF -10C +70C ECS-40-18-4XEN ECS 1: $0.52 3,003In 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	3,003In Stock	$0.52 $0.408 $0.359 $0.349 View $0.339 $0.32 $0.288	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 4MHz 20ppm 30ppm 18pF 150 Ohm Fundamental -40 C 85 C - Surface Mount HC49/US - 3 Lead 0.449" L x 0.185" W (11.40mm x 4.70mm) 0.165" (4.20mm) ECS-40-18-5G3X-JGN-TR ECS 1: $0.47 635In Stock	Mfr. Part No. ECS-40-18-5G3X-JGN-TR Mouser Part No 520-40-18-5G3X-JGNTR	ECS	Crystals 4MHz 20ppm 30ppm 18pF 150 Ohm Fundamental -40 C 85 C - Surface Mount HC49/US - 3 Lead 0.449" L x 0.185" W (11.40mm x 4.70mm) 0.165" (4.20mm) Learn More about ECS csm 7x 3l smd crystals	Datasheet	635In Stock	Cut Tape $0.47 $0.369 $0.335 $0.321 Reel $0.307 View $0.274 $0.263 $0.241 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	18 pF	20 PPM	30 PPM	11.4 mm x 4.7 mm	- 40 C	+ 85 C	SMD/SMT	150 Ohms	500 uW	11.4 mm	4.7 mm	4.2 mm	CSM-7X-3L	Reel, Cut Tape, MouseReel
Crystals 4MHz 18pF 50ppm -40C +85C ECS-40-18-5PXEN-TR ECS 1: $0.34 1,590In Stock	Mfr. Part No. ECS-40-18-5PXEN-TR Mouser Part No 520-40-18-5PXEN	ECS	Crystals 4MHz 18pF 50ppm -40C +85C Learn More about ECS csm 7x quartz crystals	Datasheet	1,590In Stock	Cut Tape $0.34 $0.329 Reel $0.329 $0.258 $0.215 $0.202 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 40 C	+ 85 C	SMD/SMT	150 Ohms	500 uW	10.3 mm	4.8 mm	4.3 mm	CSM-7X	Reel, Cut Tape, MouseReel
Crystals 4.000 MHz 20 pF CSM-4AX +/-30/50 ppm -40 - +85C RoHS ECS-40-20-28AX-EN-TR ECS 1: $1.11 1,632In Stock	Mfr. Part No. ECS-40-20-28AX-EN-TR Mouser Part No 520-40-20-28AX-EN-TR	ECS	Crystals 4.000 MHz 20 pF CSM-4AX +/-30/50 ppm -40 - +85C RoHS Learn More about ECS csm 4ax smd crystals	Datasheet	1,632In Stock	Cut Tape $1.11 $0.876 $0.84 $0.794 Reel $0.729 View $0.762 $0.669 $0.586 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 40 C	+ 85 C	SMD/SMT	200 mOhms	500 uW	12.5 mm	4.85 mm	5 mm	CSM-4AX	Reel, Cut Tape, MouseReel
Crystals CRYSTAL 4.0000MHZ SERIES SMD,CSM-7X, 50ppm, 30ppm,Series,150 Ohm,Fundamental,-10 C 70 C,HC49/US,0.449" L x 0.189" W (11.40mm x 4.80mm),0.169" (4.30mm) ECS-40-S-5PX-TR ECS 1: $0.35 1,606In Stock	Mfr. Part No. ECS-40-S-5PX-TR Mouser Part No 520-40-S-5PX-TR	ECS	Crystals CRYSTAL 4.0000MHZ SERIES SMD,CSM-7X, 50ppm, 30ppm,Series,150 Ohm,Fundamental,-10 C 70 C,HC49/US,0.449" L x 0.189" W (11.40mm x 4.80mm),0.169" (4.30mm) Learn More about ECS csm 7x quartz crystals	Datasheet	1,606In Stock	Cut Tape $0.35 $0.277 $0.251 $0.241 Reel $0.23 View $0.215 $0.204 $0.20 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	Series	30 PPM	50 PPM	11.4 mm x 4.8 mm	- 10 C	+ 70 C	SMD/SMT	150 Ohms	500 uW	11.4 mm	4.8 mm	4.3 mm	CSM-7X	Reel, Cut Tape, MouseReel
Crystals 4MHz 20pF ECS-40-20-5PXDN-TR ECS 1: $0.39 1,897In Stock 15,000Expected 16/02/2027	Mfr. Part No. ECS-40-20-5PXDN-TR Mouser Part No 520-CSM400-20DN-X	ECS	Crystals 4MHz 20pF	Datasheet	1,897In Stock 15,000Expected 16/02/2027	Cut Tape $0.39 $0.31 $0.286 Reel $0.286 $0.229 $0.224 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	20 pF	30 PPM	100 PPM	HC-49/US	- 40 C	+ 85 C	SMD/SMT	150 Ohms	500 uW	13.2 mm	4.8 mm	4.3 mm	CSM-7XDN	Reel, Cut Tape, MouseReel
Crystals HC-49USX, 4MHz, 18pF, +/-30ppm, +/-50ppm, -10C +70 C, RoHS ECS-40-18-4X ECS 1: $0.64 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 $0.64 $0.502 $0.448 Reel $0.448 $0.433 View $0.418 $0.366 $0.349 $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 4.000 MHz ECS-40-20-28AX-TR ECS 1: $1.11 468In Stock 1,000Expected 02/03/2027	Mfr. Part No. ECS-40-20-28AX-TR Mouser Part No 520-ECS-40-20-28A	ECS	Crystals 4.000 MHz	Datasheet	468In Stock 1,000Expected 02/03/2027	Cut Tape $1.11 $0.875 $0.839 $0.794 Reel $0.713 View $0.761 $0.677 $0.642 $0.621 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 70 C	SMD/SMT	200 Ohms	500 uW	12.5 mm	4.85 mm	5 mm	CSM-4AX	Reel, Cut Tape, MouseReel
Crystals 4MHz 18pF ECS-40-18-10X ECS 1: $0.91 217In Stock 2,000Expected 06/11/2026	Mfr. Part No. ECS-40-18-10X Mouser Part No 520-ECS-400-18-10X	ECS	Crystals 4MHz 18pF	Datasheet	217In Stock 2,000Expected 06/11/2026	$0.91 $0.714 $0.685 $0.639 View $0.588 $0.562	Min.: 1 Mult.: 1		4 MHz	18 pF	50 PPM	50 PPM	Cylinder	- 10 C	+ 60 C	Radial	150 Ohms	100 uW	10.5 mm			ECS-3X10X	Bulk
Crystals 4MHz 20pF ECS-40-20-1X ECS 1: $0.61 2,442In Stock	Mfr. Part No. ECS-40-20-1X Mouser Part No 520-HCA400-20X	ECS	Crystals 4MHz 20pF	Datasheet	2,442In Stock	$0.61 $0.485 $0.434 $0.42 View $0.403 $0.381 $0.365 $0.351	Min.: 1 Mult.: 1		4 MHz	20 pF	30 PPM	50 PPM	HC-49	- 10 C	+ 70 C	Radial	100 Ohms	1 mW	11.35 mm	4.65 mm	13.46 mm	HC49UX	Bulk
Crystals 4MHz SERIES ECS-40-S-1X ECS 1: $0.61 286In Stock	Mfr. Part No. ECS-40-S-1X Mouser Part No 520-HCA400-SX	ECS	Crystals 4MHz SERIES	Datasheet	286In Stock	$0.61 $0.485 $0.434 $0.42 View $0.377 $0.357 $0.335 $0.314	Min.: 1 Mult.: 1		4 MHz	Series	30 PPM	50 PPM	HC-49	- 10 C	+ 70 C	Radial	100 Ohms	1 mW	11.35 mm	4.65 mm	13.46 mm	HC49UX	Bulk
Crystals 4MHz 20pF EX/TEMP HC-49US ECS-40-20-4XDN ECS 1: $0.65 1,758In 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	1,758In Stock	$0.65 $0.512 $0.451 $0.439 View $0.426 $0.402 $0.373	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: $0.54 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	$0.54 $0.431 $0.365 $0.353 View $0.342 $0.339 $0.321	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: $0.58 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	$0.58 $0.462 $0.425 $0.414 View $0.377 $0.357 $0.341 $0.334 $0.323	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 4MHz 20pF ATS040 CTS Electronic Components 1: $0.38 792In Stock 5,000Expected 14/12/2026	Mfr. Part No. ATS040 Mouser Part No 774-ATS040	CTS Electronic Components	Crystals 4MHz 20pF	Datasheet	792In Stock 5,000Expected 14/12/2026	$0.38 $0.374 $0.373 $0.364 $0.20	Min.: 1 Mult.: 1		4 MHz	20 pF	30 PPM	50 PPM	HC-49/US	- 20 C	+ 70 C	Radial	120 Ohms	100 uW	10.85 mm	4.5 mm	3.68 mm	ATS	Bulk
Crystals 4.0MHz 18pF Fund. -20C +70C ATS040B CTS Electronic Components 1: $0.82 227In Stock	Mfr. Part No. ATS040B Mouser Part No 774-ATS040B	CTS Electronic Components	Crystals 4.0MHz 18pF Fund. -20C +70C	Datasheet	227In Stock	$0.82 $0.699 $0.663 $0.601 View $0.515 $0.499 $0.478 $0.452 $0.401	Min.: 1 Mult.: 1		4 MHz	18 pF	30 PPM	50 PPM	HC-49/U	- 20 C	+ 70 C	Radial	120 Ohms	100 uW	10.85 mm	4.5 mm	3.68 mm	ATS	Bulk
Crystals 4MHz 18pF Fund. -40C +85C ATS040B-E CTS Electronic Components 1: $0.66 1,686In Stock	Mfr. Part No. ATS040B-E Mouser Part No 774-ATS040B-E	CTS Electronic Components	Crystals 4MHz 18pF Fund. -40C +85C	Datasheet	1,686In Stock	$0.66 $0.573 $0.52 $0.498 View $0.465 $0.451 $0.409 $0.389	Min.: 1 Mult.: 1		4 MHz	18 pF	30 PPM	50 PPM	HC-49/U	- 40 C	+ 85 C	Radial	120 Ohms	100 uW	10.85 mm	4.5 mm	3.68 mm	ATS	Bulk
Crystals 4MHz 18pF Fund. -20C +70C ATS040BSM-1 CTS Electronic Components 1: $0.65 788In Stock	Mfr. Part No. ATS040BSM-1 Mouser Part No 774-ATS040BSM-1	CTS Electronic Components	Crystals 4MHz 18pF Fund. -20C +70C	Datasheet	788In Stock	Cut Tape $0.65 $0.569 $0.516 $0.495 Reel $0.429 View $0.468 $0.449 $0.401 $0.349 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	18 pF	30 PPM	50 PPM	HC-49/US-SM	- 20 C	+ 70 C	SMD/SMT	120 Ohms	100 uW	12.3 mm	4.83 mm	4.3 mm	ATS-SM	Reel, Cut Tape, MouseReel
Crystals 4.00000 MHz 20pF MP040 CTS Electronic Components 1: $0.88 1,268In Stock 10,000Expected 15/02/2027	Mfr. Part No. MP040 Mouser Part No 774-MP040	CTS Electronic Components	Crystals 4.00000 MHz 20pF	Datasheet	1,268In Stock 10,000Expected 15/02/2027	$0.88 $0.763 $0.692 $0.663 View $0.62 $0.601 $0.576 $0.545 $0.542	Min.: 1 Mult.: 1		4 MHz	20 pF	30 PPM	50 PPM	HC-49/U	- 20 C	+ 70 C	Radial	100 Ohms	100 uW	10.85 mm	3.8 mm	13.46 mm	MP	Bulk
Crystals 4MHz 18pF HC49S THROUGH HOLE HC-49/U-S4000000ABJB Citizen FineDevice 1: $0.51 189In Stock	Mfr. Part No. HC-49/U-S4000000ABJB Mouser Part No 695-HC49US-4-U	Citizen FineDevice	Crystals 4MHz 18pF HC49S THROUGH HOLE	Datasheet	189In Stock	$0.51 $0.445 $0.412 $0.385 View $0.364 $0.348 $0.332 $0.31 $0.303	Min.: 1 Mult.: 1		4 MHz	18 pF	30 PPM	50 PPM	HC-49/US	- 10 C	+ 60 C	Radial	150 Ohms	100 uW	11.5 mm	4.66 mm	3.5 mm	HC-49/US	Bulk
Crystals 4MHz 12pF -10C 60C IQD LFXTAL031848 LFXTAL031848 IQD 1: $0.39 40In Stock	Mfr. Part No. LFXTAL031848 Mouser Part No 449-LFXTAL031848	IQD	Crystals 4MHz 12pF -10C 60C	Datasheet	40In Stock	Cut Tape $0.39 $0.332 $0.316 View Reel $0.23 $0.287 $0.272 $0.23 $0.22 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	12 pF	30 PPM	50 PPM		- 10 C	+ 60 C	SMD/SMT		500 uW					Reel, Cut Tape, MouseReel
Crystals 4MHz 20pF EX/TEMP CSM-7 ECS-40-20-5PDN-TR ECS 1: $1.04 17In Stock NRND	Mfr. Part No. ECS-40-20-5PDN-TR Mouser Part No 520-CSM400-20DN NRND	ECS	Crystals 4MHz 20pF EX/TEMP CSM-7	Datasheet	17In Stock	Cut Tape $1.04 $0.812 $0.779 $0.741 Reel $0.676 View $0.703 $0.582 $0.558	Min.: 1 Mult.: 1 : 1,000	No	4 MHz	20 pF	30 PPM	100 PPM		- 40 C	+ 85 C	SMD/SMT	150 Ohms	500 uW	11.4 mm	4.8 mm	4.3 mm	CSM-7	Reel, Cut Tape
Crystals 4 MHZ 18PF CSM7 ECS-040-18-5PX-TR ECS 1: $0.71 972In Stock Factory Special Order	Mfr. Part No. ECS-040-18-5PX-TR Mouser Part No 520-CSM400X-18 Factory Special Order	ECS	Crystals 4 MHZ 18PF CSM7 Learn More about ECS csm 7x quartz crystals	Datasheet	972In Stock	Cut Tape $0.71 $0.559 $0.506 $0.486 Reel View $0.465 $0.439 $0.419 $0.373 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	18 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	SMD/SMT			13.2 mm	4.8 mm	4.3 mm	CSM-7X	Reel, Cut Tape, MouseReel
Crystals 4MHz Series -10C +70C ECS-040-S-5PX-TR ECS 1: $0.43 977In Stock Factory Special Order	Mfr. Part No. ECS-040-S-5PX-TR Mouser Part No 520-ECS-040S-5PX-T Factory Special Order	ECS	Crystals 4MHz Series -10C +70C Learn More about ECS csm 7x quartz crystals	Datasheet	977In Stock	Cut Tape $0.43 $0.335 $0.304 $0.292 Reel View $0.279 $0.263 $0.251 $0.225 MouseReel Available	Min.: 1 Mult.: 1 : 1,000		4 MHz	20 pF	30 PPM	50 PPM	HC-49/USX	- 10 C	+ 70 C	SMD/SMT	150 Ohms	500 uW	13.2 mm	4.8 mm	4.3 mm	CSM-7X	Reel, Cut Tape, MouseReel