NX1612SB Datasheet, PDF (1/1 Pages) NIHON DEMPA KOGYO – Crystal Units

Crystal Units
NX1612SB
■ Features
Crystal Unit with built-in Thermistor construction.
● Minimize circuit design space by combining crystal unit into one component.
(Presently, Crystal unit and temperature sensor is mounted in one board separately.)
● Placing temperature sensor(Thermistor) close to Crystal blank in one airtight
housing can detect more precise crystal blank temperature. Improvement on
frequency temperature compensation compared to present Crystal unit.
● Single cavity housing which is ideal to module applications.
● External configuration size is 1.6x1.2mm typ., H0.45 mm max.
● A surface-mount crystal oscillator. (Reflow soldering is possible.)
● Lead-free. Meets the requirements for re-flow profiling using lead-free solder.
■ Specifications
Item
Nominal Frequency
Overtone Order
Frequency Tolerance (25 ± 3°C )
Frequency versus Temperature Characteristics (with reference to +29 °C)
Operating Temperature Range
Storage Temperature Range
Equivalent Series Resistance
Level of Drive
Load Capacitance
Model
For Mobile Communications
NX1612SB
26 to 52 MHz
Fundamental
±10 × 10^−6
±12 × 10^−6
−30 to +85 °C
−40 to +85 °C
Refer to *1
10 μW
7 pF
NTC Thermistor for Temperature Sensor
Resistance [R25]
B-Constant [B25-50]
100k Ω ± 1 %
4250K ± 1 %
■ Dimensions
1.6±0.1
#1
#2
(C0.2)
#4
(0.55)
#3
(0.55)
Terminal land connections
(TOP VIEW)
#4
#3
mm
COVER
#1
#2
#1,#3: Crystal
#2: Thermistor and GND (Connection with cover)
#4: Thermistor
Land pattern (Typical)
*1 Equivalent Series Resistance
Nominal Frequency Equivalent Series
(MHz)
Resistance max. [Ω]
26 to 38.4
80
38.4 to 52
50
0.75
1.05
Please specify the model name, frequency, and specification number when you order products.
For further questions regarding specifications, please feel free to contact us.
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1604A_NX1612SB_e