Datenblatt

Specification of Crystal Unit
1
NDK PART NUMBER
NX2520SA
5
Type
NX2520SA
(STD-CSW-2)
6
6.1
6.2
6.3
6.4
6.5
6.6
Electrical characteristics
Nominal frequency(F0)
Overtone order
Adjustment tolerance
Tolerance over the temperature range
Equivalent resistance (R1)
Maximum Drive Level
7
7.2
7.1.1
7.1.2
7.1.3
7.2
7.2.1
7.2.2
7.2.3
Measurement circuit
Frequency measurement
Measuring instrument
Load capacitance(CL)
Level of drive
Equivalent resistance measurement
Measuring instrument
Load capacitance(CL)
Level of drive
8
Dimension
±10×10-6 max. (+25 °C)
±10×10-6 max. (-10~+60 °C) The reference temperature shall be +25
*ATTACHED SHEETS 5
100μW max.
π circuit
10pF
10μW
π circuit
Series
10μW
0.1
0.65 Max
2.0
0.1
2.5
* ATTACHED SHEETS 5
Fundamental
Cover
Metal
Base
Alumina Ceramics
(0.8)
(0.8)
#1
(0.65)
#2
C 0.3
Terminal
(0.65)
Tungsten Metalize
(Au plating on Ni pre plating)
#3
#4
LAND PATTERN (TYPICAL)
[TOP VIEW]
PIN CONNECTION
1.0
1.3
1.7
#4
#3
#1
#2
TERMINAL
#1,#3:X'tal
#2,#4:GND(CONNECTION COVER)
1.2
13 Feb. 2009 Rev.B
Frequency(MHz)
16
20
24
24.576
26
30
32
40
44
48
IC(ESR)
80 ohm
70 ohm
70 ohm
70 ohm
70 ohm
50 ohm
50 ohm
50 ohm
50 ohm
50 ohm
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