Categories	Crystals, Oscillators, Resonators / Crystals
Datasheet	HC-49UX Series
Standard Package	100
Manufacturer	ECS Inc.
Series	HC-49UX
Part Status	Active
Type	MHz Crystal
Frequency	12MHz
Frequency Stability	±50ppm
Frequency Tolerance	±30ppm
Load Capacitance	20pF
ESR (Equivalent Series Resistance)	30 Ohms
Operating Mode	Fundamental
Operating Temperature	-20°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-160-S-1X	ECS Inc., 16MHz ±30ppm Crystal Series 20 Ohms HC-49/U, HC-49UX	View
ECS-80-32-1X	ECS Inc., 8MHz ±30ppm Crystal 32pF 35 Ohms HC-49/U, HC-49UX	View
ECS-184-20-1X	ECS Inc., 18.432MHz ±30ppm Crystal 20pF 20 Ohms HC-49/U, HC-49UX	View
ECS-120-32-1X	ECS Inc., 12MHz ±30ppm Crystal 32pF 30 Ohms HC-49/U, HC-49UX	View
ECS-147.4-20-1X	ECS Inc., 14.7456MHz ±30ppm Crystal 20pF 25 Ohms HC-49/U, HC-49UX	View
ECS-40-20-1X	ECS Inc., 4MHz ±30ppm Crystal 20pF 100 Ohms HC-49/U, HC-49UX	View
ECS-18-S-1X	ECS Inc., 1.8432MHz ±30ppm Crystal Series 750 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-60-S-1X	ECS Inc., 6MHz ±30ppm Crystal Series 40 Ohms HC-49/U, HC-49UX	View
ECS-240-20-1X	ECS Inc., 24MHz ±30ppm Crystal 20pF 20 Ohms HC-49/U, HC-49UX	View
ECS-200-20-1X	ECS Inc., 20MHz ±30ppm Crystal 20pF 20 Ohms HC-49/U, HC-49UX	View
ECS-40-S-1X	ECS Inc., 4MHz ±30ppm Crystal Series 100 Ohms HC-49/U, HC-49UX	View

ECS-120-20-1X-EM

Part NumberECS-120-20-1X-EM