CT2520DB Datasheet

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