MERCURY M49

M49
ML49
[ 12.4 * 4.5 * 4.0 mm ]
[ 12.4 * 4.5 * 3.0 mm ]
Min.
Surface Mount Crystals
Fund.
3rd O.T.
Max.
3.2MHz
70MHz
Features
Specifications
●
High frequency fundamental mode is available in BT-cut
●
Withstands solder reflow and is available in EIA-481A tape and ree .l
●
AT-strip crystal inside. Optimized for low spurious.
●
Lowest cost among all Mercury SMD crystals
General Specifications
M49 ( 12.4 * 4.5 * 4.0mm ) , ML49 ( 12.4 * 4.5 * 3.0mm ) series
Item / Type
3.2.000 ~ 48.000 MHz , AT-cut , Fundamental Mode ( see Table 1 )
Frequency Range & Crystal Cut
27.000 ~ 70.000 MHz , AT-cut , 3rd overtone ( see Table 1 )
24.000 ~ 48.000 MHz , BT-cut , Fundamental Mode ( see Table 1 )
Series or Parallel ( 8 to 32 pF ) resonance
Load Capacitance
Drive Level
10μ W typica ( 100μ W max. )
Frequency Tolerance
± 5 ppm , ± 10 ppm , ± 20 ppm or ± 30 ppm at 25°C
Frequency Stability
See Table 2
Aging
△F / F : ±3 ppm / year ( max. )
Storage Temperature Range
- 50°C to 105°C
Table 2
Table 1
ESR ( Equivalent Series Resistance )
Frequency stability Vs Operating temperature range
Osc. Mode
E.S.R.
Freq.(MHz)
Osc. Mode
E.S.R.
Stability code
Temp. (ºC) \ ppm
± 10
± 15
± 20
± 25
± 30
3.2 ~ 3.4
AT , Fund.
300 Ω
24.0 ~ 48.0
BT , Fund.
40 Ω
X
-10 to 60°C
○
○
○
○
○
3.5 ~ 6.0
AT , Fund.
120 Ω
27.0 ~ 30.0
AT , 3rd
150 Ω
Y
-20 to 70°C
▲
○
○
○
○
6.1 ~ 10.0
AT , Fund.
60 Ω
30.1 ~ 50.0
AT , 3rd
100 Ω
I
-40 to 85°C
○
○
○
○
10.1 ~ 30.0
AT , Fund.
40 Ω
50.1 ~ 70.0
AT , 3rd
80 Ω
Freq.(MHz)
○ : available ; ▲ : contact Mercury
Outline Dimensions ( Unit : mm )
Mercury www .mercury-crystal.com
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