HC49-4H Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – SURFACE MOUNT QUARTZ CRYSTALS

HC49/4H SMX Crystals
ISSUE 13 ; 28 SEPTEMBER 2004
Delivery Options
I Please contact our sales office for current leadtimes
Holder Style
I HC49/4H SMX crystals are resistance welded,
hermetically sealed in an inert atmosphere with glass to
metal seals securing the lead wires. The lead wires are
formed into a gull wing and mounted on a plastic
former
I Lower profiles available, please contact our sales office
General Specifications
I Load Capacitance (C_L): 10pF to 75pF or Series
I Drive Level: 0.5mW max
I Static Capacitance (C₀): 9pF max
I Ageing: ±3ppm typical per year
Standard Frequency Tolerances and Stabilities
I ±50ppm, ±100ppm
Operating Temperature Ranges
I 0 to 50°C
–10 to 60°C
–20 to 70°C
–30 to 80°C
Storage Temperature Range
I –55 to 125°C
Environmental Specification
I Shock: 981m/s2 for 6ms, three shocks in each direction
along three mutually perpendicular planes,
I Vibration: 10 to 60Hz 0.75mm displacement, 60 to 500Hz
98.1m/s² acceleration, 30 minute in each of three
mutually perpendicular planes
Solder Condition
I For typical soldering conditions, please see the relevant
page in Application Notes
Marking
I Frequency only
Minimum Order Information Required
I _{Frequency + Holder + Frequency Tolerance @ 25°C}
+ Frequency Stability + Operating Temperature Range +
Circuit Condition + Overtone Order
Outline in mm
11.4±0.2
10.3 max
3.8 max
13.4 max.
4.4
Solder pad layout
15.0
4.0
Typical Frequency Vs Temperature Curves for various
angles of AT-cut crystals
+25
0
–25
–50
–20
+25
+70
Temperature (°C)
+100
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