Crystals
HC-49/SM
Features and Applications:
Designed for applications where board height is critical
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General, industrial, microcontrollers
Cost effective
Surface mount
Low profile (4 mm height)
Superior resistance weld HC49/4SMX metal case
Supplied taped and reeled
Dimensions : Millimetres
Specification Table
Nominal Frequency Range
3.5 to 32 MHz
24 to 70 MHz
Vibration Mode
Fundamental (AT)
3rd Overtone (AT)
Frequency Tolerance at 25°C
Temperature Stability
Operating Temperature Range
Storage Temperature Range
Load Capacitance
±20, ±30 or ±50 ppm (Options : ±10, ±15 ppm)
±30 or ± 50 ppm
-10°C to +60°C or -20°C to +70°C
-20°C to +70°C or -30°C to +80°C
8 pF to 33 pF or series
Equivalent Series Resistance
Shunt Capacitance
See ESR table below
5 pF maximum (≤18 MHz) or 7 pF maximum (>18 MHz)
200 µW maximum (≤5 MHz) 100 µW maximum (>5 MHz)
500 MΩ minimum at 100 V dc
Drive Level
Insulation Resistance
Aging
±5 ppm per year
ESR Table
Case
Vibration
HC 49SM
Ω Maximum
Frequency
3.5 - 3.99 MHz
4 - 4.99 MHz
5 - 5.99 MHz
6 - 6.99 MHz
7 - 7.99 MHz
Mode
F
F
F
F
F
150
120
100
80
80
www.element14.com
www.farnell.com
www.newark.com
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