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
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Minimum Operating Temperature
Maximum Operating Temperature
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ECS Crystals 7.3728MHz 20pF EX/TEMP HC-49US
Datasheet
1.043In Stock
Min.: 1
Mult.: 1

7.3728 MHz 20 pF 30 PPM 100 PPM HC-49/US - 40 C + 85 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 7.3728MHz 20pF
Datasheet
424In Stock
Min.: 1
Mult.: 1

7.3728 MHz 20 pF 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 7.3728MHz SERIES
Datasheet
996In Stock
Min.: 1
Mult.: 1

7.3728 MHz Series 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 8MHz 18pF EX/TEMP HC-49US
Datasheet
518In Stock
600Expected 9/22/2026
Min.: 1
Mult.: 1

8 MHz 18 pF 30 PPM 100 PPM HC-49/US - 40 C + 85 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 8MHz 18pF
Datasheet
1.110In Stock
Min.: 1
Mult.: 1

8 MHz 18 pF 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 8MHz 20pF
Datasheet
1.993In Stock
Min.: 1
Mult.: 1

8 MHz 20 pF 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 8MHz 32pF
Datasheet
350In Stock
Min.: 1
Mult.: 1

8 MHz 32 pF 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 8MHz SERIES
Datasheet
955In Stock
Min.: 1
Mult.: 1

8 MHz Series 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals CRYSTAL 8.5MHz
Datasheet
809In Stock
Min.: 1
Mult.: 1

8.5 MHz Series 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 80 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 9MHz SERIES
Datasheet
519In Stock
Min.: 1
Mult.: 1

9 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
ECS Crystals 9.8304MHz SERIES
Datasheet
74In Stock
Min.: 1
Mult.: 1

9.8304 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
ECS Crystals 3.579545MHz 30pF
Datasheet
539In Stock
Min.: 1
Mult.: 1

3.579545 MHz 30 pF 30 PPM 50 PPM HC-49/USX - 10 C + 70 C Radial 200 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk

ECS Crystals 12.096MHz SERIES
Datasheet
43In Stock
Min.: 1
Mult.: 1

12.096 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
ECS Crystals 15.0MHz 20pF -10C +70C
Datasheet
194In Stock
Min.: 1
Mult.: 1

15 MHz 20 pF 30 PPM 50 PPM HC-49/USX - 10 C + 70 C Radial 40 Ohms 500 uW 11.35 mm 3.7 mm 3.5 mm HCS-49USX Bulk

ECS Crystals 27MHz 18pF
Datasheet
158In Stock
Min.: 1
Mult.: 1

27 MHz 18 pF 30 PPM 50 PPM HC-49/US - 10 C + 70 C Radial 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk

ECS Crystals 48MHz 20pF HC-49US
Datasheet
144In Stock
Min.: 1
Mult.: 1

48 MHz 20 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

ECS Crystals CRYSTAL 9.545MHz
Datasheet
678In Stock
Min.: 1
Mult.: 1

9.545 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
ECS Crystals 17.73MHz 18pF 50ppm -40C +85C
Datasheet
988In Stock
Min.: 1
Mult.: 1

17.734475 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 4MHz 20pF -40C +85C
Datasheet
579In Stock
Min.: 1
Mult.: 1

4 MHz 20 pF 30 PPM 50 PPM HC-49/USX - 40 C + 85 C Radial 150 Ohms 500 uW 11.35 mm 3.8 mm 3.5 mm HCS-49USX

ECS Crystals 16.257MHz SERIES
Datasheet
469In Stock
Min.: 1
Mult.: 1

16.257 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
ECS Crystals 19.6608MHz 20pF EX/TEMP HCU-49US
Datasheet
953In Stock
Min.: 1
Mult.: 1

19.6608 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

ECS Crystals 21.47727MHz SERIES
Datasheet
88In Stock
Min.: 1
Mult.: 1

21.47727 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
ECS Crystals 3.6864MHz 100ppm
Datasheet
91In Stock
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
ECS Crystals CRYSTAL 10MHZ 18pF 10ppm 10ppm -20 C 70 C
Datasheet
861In Stock
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
ECS Crystals 20MHz SERIES
Datasheet
800In Stock
200Expected 11/10/2026
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