Crystal Units with Thermistor
Surface Mount Type CT2520DB
2.5×2.0mm for Mobile Communications
Features
• Reference frequency for
telecommunication systems
• Reflow compatible
• Using ceramic package resulting in high
reliability
How to Order
CT2520DB 19200
□□ □ □ □ □□
①
②
③ ④⑤⑥ ⑦
④
Frequency Tolerance
F
G
±10×10
−
6
Std.
±15×10
−
6
—
±10×10
−
6
±15×10
−
6
—
—
①
Series
②
Frequency
③
Load Capacitance
B0
C0
FF
LJ
6 pF
7 pF
—
Std.
Applications
• Mobile Communications, Bluetooth
®
,
Wireless LAN, GPS
∗
Bluetooth
®
Trademarks are owned by
Bluetooth SIG Inc.
⑤
Operating Temp. Range
⑥
Frequency Temp. Stability
−20
to
+70°C
−30
to
+85°C
RoHS Compliant
⑦
Individual Specification
Packaging (Tape & Reel 12000 pcs./ reel)
Specifications
Item
Frequency Range
Overtone Order
Load Capacitance
Frequency Tolerance
Motional Series Resistance
Drive Level
Operating Temp. Range
Storage Temp. Range
Frequency Temp. Characteristics
Thermistor Resistance
Thermistor B-Constant
Symbol
f
_nom
OT
CL
f
_tol
R1
DL
T
_use
T
_stg
f
_tem
―
―
Specification
16000 to 60000
Fundamental
7
±10
Table 1
10
−30
to
+85
−40
to
+105
±12
Table 2
Table 3
Units
kHz
―
pF
×10
−
6
ohm
μW
°C
°C
×10
−
6
ohm
K
Freq. deviation from the value at 30°C
25°C
25°C−50°C
100μW max.
30°C±3°C
Remarks
Table1 Motional Series Resistance
Frequency Range
16000 to 19199kHz
19200 to 25999kHz
26000 to 29999kHz
30000 to 60000kHz
Motional Series Resistance
100Ω max.
80Ω max.
60Ω max.
50Ω max.
Table 2 Thermistor Resistance
Resistance
100kΩ
Specification
±1%
Table 3 Thermistor B-Constant
B-Constant
4250K
Specification
±1%
Please contact us for other specifications.
Dimensions
#4
#3
2.00±0.10
(Unit: mm)
Recommended Land Pattern
(Unit: mm)
0.95
1.00
0.95
0.95±0.05
#1
#1
4−0.75±0.1
#2
#4 SENSOR
#3 HOT
4−0.65±0.1
#1 HOT
#2 GND
#4
#3
CONNECTION
(TOP VIEW)
0.85
0.70
0.85
2.50±0.10
#2
嵌入式系统
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