Specification of Crystal Unit
1 NDK PART NUMBER NX2520SA
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T
e NX2520SA
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Electrical characteristics
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Nominal frequency(F0) * ATTACHED SHEETS 5
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Overtone order Fundamental
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Adjustment tolerance
r10u10
-6
max.
+25 qC
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Tolerance over the temperature range
r10u10
-6
max.
-10~+70 qC
The reference temperature shall be +25
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Equivalent resistance (R1) *ATTACHED SHEETS 5
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Shunt Capacitance (C0) NA
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Maximum Drive Level
100PW max.
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Measurement circuit
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Frequency measurement
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Measuring instrument
S circuit
㪎㪅㪈㪅㪉
Load capacitance(CL) 10pF
㪎㪅㪈㪅㪊
Level of drive
10PW
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Equivalent resistance measurement
㪎㪅㪉㪅㪈
Measuring instrument
S circuit
㪎㪅㪉㪅㪉
Load capacitance(CL) Series
㪎㪅㪉㪅㪊
Level of drive
10PW
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Dimension
2.5 0.1
2.0 0.1
0
.
6
5
M
a
x
Cover
Metal
Base
Alumina Ceramics
(0.8)
(0.65)
(0.8)
(0.65)
#3
#4
#1 #2
PIN CONNECTION
[TOP VIEW]
TERMINAL
#1,#3:X'tal
#2,#4:GND(CONNECTION COVER)
LAND PATTERN (TYPICAL)
1.2
1.0
1.3
1.7
Terminal
Tungsten Metalize
(Au plating on Ni pre plating)
#1
#3
#2
#4
C 0.3
