M49 Datasheet, PDF (1/1 Pages) Mercury United Electronics Inc – Surface Mount Crystals

M49
[ 12.4 * 4.5 * 4.0 mm ]
ML49
[ 12.4 * 4.5 * 3.0 mm ]
Surface Mount Crystals
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
Fund.
3rd O.T.
Min.
3.2MHz
Max.
70MHz
Item / Type
Frequency Range & Crystal Cut
Load Capacitance
Drive Level
Frequency Tolerance
Frequency Stability
Aging
Storage Temperature Range
M49 ( 12.4 * 4.5 * 4.0mm ) , ML49 ( 12.4 * 4.5 * 3.0mm ) series
3.2.000 ~ 48.000 MHz , AT-cut , Fundamental Mode ( see Table 1 )
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
10μ W typica ( 100μ W max. )
± 5 ppm , ± 10 ppm , ± 20 ppm or ± 30 ppm at 25°C
See Table 2
△F / F : ±3 ppm / year ( max. )
- 50°C to 105°C
Table 1
ESR ( Equivalent Series Resistance )
Freq.(MHz) Osc. Mode E.S.R. Freq.(MHz) Osc. Mode E.S.R.
3.2 ~ 3.4
AT , Fund. 300 Ω 24.0 ~ 48.0 BT , Fund. 40 Ω
3.5 ~ 6.0
AT , Fund. 120 Ω 27.0 ~ 30.0 AT , 3rd 150 Ω
6.1 ~ 10.0
AT , Fund. 60 Ω 30.1 ~ 50.0 AT , 3rd 100 Ω
10.1 ~ 30.0 AT , Fund. 40 Ω 50.1 ~ 70.0 AT , 3rd 80 Ω
Table 2
Frequency stability Vs Operating temperature range
Stability code Temp. (ºC) \ ppm ± 10 ± 15 ± 20 ± 25 ± 30
X
-10 to 60°C
○
○
○
○
○
Y
-20 to 70°C
▲
○
○
○
○
I
-40 to 85°C
○
○
○
○
○ : available ; ▲ : contact Mercury
Outline Dimensions ( Unit : mm )
Mercury www .mercury-crystal.com
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