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 HC-49USX, 20MHz, 18pF, HC-49USX, +/-30ppm, +/-50ppm, -10C +70 C, RoHS
Datasheet
7.372In Stock
Min.: 1
Mult.: 1
: 200

20 MHz 18 pF 30 PPM 50 PPM 11.35 mm x 3.5 mm - 10 C + 70 C Radial 30 Ohms 500 uW 11.35 mm 5 mm 3.5 mm Reel, Cut Tape
ECS Crystals 18.432MHz SERIES
Datasheet
638In Stock
Min.: 1
Mult.: 1

18.432 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 9.8304MHz 20pF
Datasheet
680In Stock
Min.: 1
Mult.: 1

9.8304 MHz 20 pF 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 15.36MHz 18pF 50ppm -40C +85C
Datasheet
773In Stock
Min.: 1
Mult.: 1

15.36 MHz 18 pF 30 PPM 50 PPM - 40 C + 85 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 12.96MHz 18pF -10C +70C
Datasheet
279In Stock
Min.: 1
Mult.: 1

12.96 MHz 18 pF 30 PPM 50 PPM HC-49/USX - 10 C + 70 C Radial 60 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 14.31818MHz SERIES
Datasheet
998In Stock
Min.: 1
Mult.: 1

14.31818 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 24.00014MHz 18pF 50ppm -40C +85C
Datasheet
198In 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 11.98135MHz Series -10C +70C
Datasheet
208In Stock
Min.: 1
Mult.: 1

11.98135 MHz 20 pF 30 PPM 50 PPM HC-49/USX - 10 C + 70 C Radial 60 Ohms 500 uW 11.35 mm 3.7 mm 3.5 mm HCS-49USX Bulk
ECS Crystals 16.000312MHz 18pF
Datasheet
1.034In Stock
Min.: 1
Mult.: 1

16.000312 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

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 4MHz 20pF -40C +85C
Datasheet
586In 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 17.73MHz 18pF 50ppm -40C +85C
Datasheet
74In Stock
1.000Expected 6/23/2026
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 21.47727MHz SERIES
Datasheet
131In 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 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 27MHz 18pF
Datasheet
173In 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 19.6608MHz 20pF EX/TEMP HCU-49US
Datasheet
963In 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 CRYSTAL 12MHZ 18pF +/-10ppm +/-10ppm -20C - 70C
Datasheet
3.244In Stock
Min.: 1
Mult.: 1

12 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 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 15.0MHz 20pF -10C +70C
Datasheet
247In 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 12.096MHz SERIES
Datasheet
45In 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 CRYSTAL 9.545MHz
Datasheet
686In 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 12.000 MHz 20 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS
Datasheet
1.057In Stock
Min.: 1
Mult.: 1

12 MHz 20 pF 30 PPM 50 PPM 11.35 mm x 4.65 mm - 20 C + 70 C Radial 60 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm Bulk
ECS Crystals 16.000 MHz 18 pF HC-49USX +/-30/50 ppm -20 - +70C RoHS
Datasheet
977In Stock
Min.: 1
Mult.: 1

16 MHz 18 pF 30 PPM 50 PPM 11.35 mm x 4.65 mm - 20 C + 70 C Radial 40 Ohms 500 uW 11.35 mm 4.65 mm 3.5 mm Bulk
ECS Crystals 12MHz 20pF HC-49US
Datasheet
4.921In Stock
Min.: 1
Mult.: 1

12 MHz 20 pF 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 4MHz 20pF
Datasheet
5.664In Stock
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