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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Qty. RoHS ECAD Model Frequency
Load Capacitance
Tolerance
Frequency Stability
Package / Case
Minimum Operating Temperature
Maximum Operating Temperature
Termination Style
ESR
Drive Level
Length
Width
Height
Diameter
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ECS Crystals 14.31818MHz 18pF 50ppm -40C +85C
Datasheet
7In Stock
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14.31818 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 14.7456MHz 18pF 50ppm -40C +85C
Datasheet
851In Stock
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Mult.: 1

14.7456 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 16MHz 18pF 50ppm -40C +85C
Datasheet
655In Stock
Min.: 1
Mult.: 1

16 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 16.000MHZ 20pF 100 ppm -55C +125C
Datasheet
1,219In Stock
Min.: 1
Mult.: 1

16 MHz 20 pF 30 PPM 100 PPM HC-49/USX - 55 C + 125 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 16.384MHz 18pF 50ppm -40C +85C
Datasheet
398In Stock
Min.: 1
Mult.: 1

16.384 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 18MHz 18pF 50ppm -40C +85C
Datasheet
293In Stock
Min.: 1
Mult.: 1

18 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 20MHz 18pF 50ppm -40C +85C
Datasheet
1,331In Stock
Min.: 1
Mult.: 1

20 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 20.000MHZ 20pF 100 ppm -55C +125C
Datasheet
69In Stock
Min.: 1
Mult.: 1

20 MHz 20 pF 30 PPM 100 PPM HC-49/USX - 55 C + 125 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 22.1184MHz 18pF 50ppm -40C +85C
Datasheet
10In Stock
Min.: 1
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22.1184 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 24MHz 18pF 50ppm -40C +85C
Datasheet
2,515In Stock
Min.: 1
Mult.: 1

24 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 24.576MHz 18pF 50ppm -40C +85C
Datasheet
558In Stock
Min.: 1
Mult.: 1

24.576 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 25.000MHZ 18pF 100 ppm -55C +125C
Datasheet
834In Stock
Min.: 1
Mult.: 1

25 MHz 18 pF 30 PPM 100 PPM HC-49/USX - 55 C + 125 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 25.000MHZ 18pF 100 ppm -40 C +85C
Datasheet
1,030In Stock
Min.: 1
Mult.: 1

25 MHz 18 pF 30 PPM 50 PPM HC-49 - 40 C + 85 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 25.000MHZ 20pF 100 ppm -40 C +85C
Datasheet
1,031In Stock
Min.: 1
Mult.: 1

25 MHz 20 pF 30 PPM 100 PPM HC-49/USX - 40 C + 85 C Radial 30 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 28.224MHz 18pF 50ppm -40C +85C
Datasheet
372In Stock
Min.: 1
Mult.: 1

28.224 MHz 18 pF 50 PPM 50 PPM - 40 C + 85 C Radial 30 Ohms 500 uW 3.5 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 28.63636MHz 18pF 50ppm -40C +85C
Datasheet
1,086In Stock
Min.: 1
Mult.: 1

28.63636 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 100 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals CRYSTAL 3.579545MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,200 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm)
Datasheet
231In Stock
Min.: 1
Mult.: 1

3.579545 MHz 18 pF 30 PPM 50 PPM - 40 C + 85 C Radial 200 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk

ECS Crystals 4MHz 18pF -10C +70C
Datasheet
2,264In Stock
800Expected 11/3/2026
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
ECS Crystals 40MHz 18pF 50ppm -40C +85C
Datasheet
176In Stock
Min.: 1
Mult.: 1

40 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 100 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk

ECS Crystals 4.194304MHz 18pF -10C +70C
Datasheet
1,398In Stock
Min.: 1
Mult.: 1

4.194304 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
ECS Crystals CRYSTAL 4.9152MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,150 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm)
Datasheet
148In Stock
Min.: 1
Mult.: 1

4.9152 MHz 18 pF 30 PPM 50 PPM - 40 C + 85 C Radial 150 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk

ECS Crystals 5MHz 18pF -10C +70C
Datasheet
223In Stock
Min.: 1
Mult.: 1

5 MHz 18 pF 30 PPM 50 PPM HC-49/US - 40 C + 85 C Radial 120 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 50MHz 18pF 50ppm -40C +85C
Datasheet
638In Stock
Min.: 1
Mult.: 1

50 MHz 18 pF 30 PPM 50 PPM - 40 C + 85 C Radial 100 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals CRYSTAL 6.0000MHZ 18PF T/H,HC-49USX, 50ppm, 30ppm,18pF,100 Ohm,Fundamental,-40 C 85 C,HC49/US,0.447" L x 0.183" W (11.35mm x 4.65mm),0.138" (3.50mm)
Datasheet
1,128In Stock
Min.: 1
Mult.: 1

6 MHz 18 pF 30 PPM 50 PPM - 40 C + 85 C Radial 100 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 6.144MHz 18pF 50ppm -40C +85C
Datasheet
12In Stock
Min.: 1
Mult.: 1

6.144 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 100 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk