M49
[ 12.4 * 4.5 * 4.0 mm ]
Features
Specifications
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ML49
[ 12.4 * 4.5 * 3.0 mm ]
Min.
Surface Mount Crystals
Fund.
3rd O.T.
3.2MHz
Max.
70MHz
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
Item / Type
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 )
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 )
Load Capacitance
Drive Level
Frequency Tolerance
Frequency Stability
Aging
Storage Temperature Range
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
Table 2
ESR ( Equivalent Series Resistance )
Freq.(MHz)
3.2 ~ 3.4
3.5 ~ 6.0
6.1 ~ 10.0
10.1 ~ 30.0
Osc. Mode
AT , Fund.
AT , Fund.
AT , Fund.
AT , Fund.
E.S.R.
300
Ω
120
Ω
60
Ω
40
Ω
Freq.(MHz)
24.0 ~ 48.0
27.0 ~ 30.0
30.1 ~ 50.0
50.1 ~ 70.0
Osc. Mode
BT , Fund.
AT , 3rd
AT , 3rd
AT , 3rd
E.S.R.
40
Ω
150
Ω
100
Ω
80
Ω
Frequency stability Vs Operating temperature range
Stability code
X
Y
I
Temp. (ºC) \ ppm
-10 to 60°C
-20 to 70°C
-40 to 85°C
± 10
○
▲
± 15
○
○
○
± 20
○
○
○
± 25
○
○
○
± 30
○
○
○
○
: available ;
▲
: contact Mercury
Outline Dimensions ( Unit : mm )
Mercury
www .mercury-crystal.com
■Taiwan
: Tel (886)-2-2406-2779 / sales-tw@mercury-crystal.com
■U.S.A:
Tel: (1)-909-466-0427 / sales-us@mercury-crystal.com
■China:
Tel: (86)-512-5763-8100 / sales-cn@mecxtal.com
MERCURY [ MERCURY UNITED ELECTRONICS INC ]
