Categories	Crystals, Oscillators, Resonators / Crystals
Datasheet	HC-49UX Series
Standard Package	100
Manufacturer	ECS Inc.
Series	HC-49UX
Packaging	Bulk
Part Status	Active
Type	MHz Crystal
Frequency	20MHz
Frequency Stability	±50ppm
Frequency Tolerance	±30ppm
Load Capacitance	20pF
ESR (Equivalent Series Resistance)	20 Ohms
Operating Mode	Fundamental
Operating Temperature	-10°C ~ 70°C
Ratings	-
Mounting Type	Through Hole
Package / Case	HC-49/U
Size / Dimension	0.447" L x 0.183" W (11.35mm x 4.65mm)
Height - Seated (Max)	0.530" (13.46mm)

ECS-40.3-20-1X	ECS Inc., 4.032MHz ±30ppm Crystal 20pF 100 Ohms HC-49/U, HC-49UX	View
ECS-60-32-1X	ECS Inc., 6MHz ±30ppm Crystal 32pF 40 Ohms HC-49/U, HC-49UX	View
ECS-35-S-1X	ECS Inc., 3.579545MHz ±30ppm Crystal Series 120 Ohms HC-49/U, HC-49UX	View
ECS-100-20-1X-EM	ECS Inc., 10MHz ±30ppm Crystal 20pF 30 Ohms HC-49/U, HC-49UX	View
ECS-143-S-1X	ECS Inc., 14.31818MHz ±30ppm Crystal Series 25 Ohms HC-49/U, HC-49UX	View
ECS-196.6-20-1X	ECS Inc., 19.6608MHz ±30ppm Crystal 20pF 20 Ohms HC-49/U, HC-49UX	View
ECS-110.5-S-1X	ECS Inc., 11.0592MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49UX	View
ECS-184-18-1X	ECS Inc., 18.432MHz ±30ppm Crystal 18pF 20 Ohms HC-49/U, HC-49UX	View
ECS-35-18-1X-EM	ECS Inc., 3.5MHz ±30ppm Crystal 18pF 120 Ohms HC-49/U, HC-49UX	View
ECS-18-13-1X	ECS Inc., 1.8432MHz ±30ppm Crystal 13pF 750 Ohms HC-49/U, HC-49UX	View
ECS-25-S-1X	ECS Inc., 2.5MHz ±30ppm Crystal Series 300 Ohms HC-49/U, HC-49UX	View
ECS-20-20-1X	ECS Inc., 2MHz ±30ppm Crystal 20pF 500 Ohms HC-49/U, HC-49UX	View

ECS-200-20-1X

Part NumberECS-200-20-1X