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	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-41-20-1	ECS Inc., 4.096MHz ±30ppm Crystal 20pF 100 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-20-S-1	ECS Inc., 2MHz ±30ppm Crystal Series 500 Ohms HC-49/U, HC-49U	View
ECS-100-S-1	ECS Inc., 10MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49U	View
ECS-480-20-1	ECS Inc., 48MHz ±30ppm Crystal 20pF 40 Ohms HC-49/U, HC-49U	View
ECS-110.4-S-1	ECS Inc., 11.046MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49U	View
ECS-80-18-1	ECS Inc., 8MHz ±30ppm Crystal 18pF 35 Ohms HC-49/U, HC-49U	View
ECS-110.5-20-1	ECS Inc., 11.0592MHz ±30ppm Crystal 20pF 30 Ohms HC-49/U, HC-49U	View
ECS-143-S-1	ECS Inc., 14.31818MHz ±30ppm Crystal Series 25 Ohms HC-49/U, HC-49U	View
ECS-50-S-1	ECS Inc., 5MHz ±30ppm Crystal Series 50 Ohms HC-49/U, HC-49U	View
ECS-98.3-20-1	ECS Inc., 9.8304MHz ±30ppm Crystal 20pF 35 Ohms HC-49/U, HC-49U	View
ECS-119.8-S-1	ECS Inc., 11.98135MHz ±30ppm Crystal Series 30 Ohms HC-49/U, HC-49U	View

ECS-200-20-1

Part NumberECS-200-20-1