Categories	Crystals, Oscillators, Resonators / Crystals
Datasheet	HC-49U
Standard Package	100
Manufacturer	ECS Inc.
Series	HC-49U
Packaging	Bulk
Part Status	Active
Type	MHz Crystal
Frequency	20MHz
Frequency Stability	±50ppm
Frequency Tolerance	±30ppm
Load Capacitance	Series
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-110.5-20-1	ECS Inc., 11.0592MHz ±30ppm Crystal 20pF 30 Ohms HC-49/U, HC-49U	View
ECS-107.3-S-1	ECS Inc., 10.738635MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49U	View
ECS-120.003-18-1	ECS Inc., 12.000393MHz ±30ppm Crystal 18pF 30 Ohms HC-49/U, HC-49U	View
ECS-51-S-1	ECS Inc., 5.068MHz ±30ppm Crystal Series 50 Ohms HC-49/U, HC-49U	View
ECS-200-S-1	ECS Inc., 20MHz ±30ppm Crystal Series 20 Ohms HC-49/U, HC-49U	View
ECS-25-S-1	ECS Inc., 2.5MHz ±30ppm Crystal Series 300 Ohms HC-49/U, HC-49U	View
ECS-112.2-S-1	ECS Inc., 11.228MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49U	View
ECS-196.6-S-1	ECS Inc., 19.6608MHz ±30ppm Crystal Series 20 Ohms HC-49/U, HC-49U	View
ECS-80-S-1	ECS Inc., 8MHz ±30ppm Crystal Series 35 Ohms HC-49/U, HC-49U	View
ECS-36-18-1	ECS Inc., 3.6864MHz ±30ppm Crystal 18pF 120 Ohms HC-49/U, HC-49U	View
ECS-110.5-S-1	ECS Inc., 11.0592MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49U	View
ECS-32-17-1	ECS Inc., 3.2768MHz ±30ppm Crystal 17pF 120 Ohms HC-49/U, HC-49U	View

ECS-200-S-1

Part NumberECS-200-S-1