Crystal Units
NX1612SB
For Mobile Communications
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
■
Model
NX1612SB
Item
Nominal Frequency
26 to 76.8 MHz
Fundamental
±10 × 10−6
±12 × 10−6
−30 to +85 °C
−40 to +85 °C
Refer to *1
10 μW
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
7 pF
Specifications Number
STD-CTI-1
NTC Thermistor for Temperature Sensor
Resistance [R25]
100k Ω ± 1 %
4250K ± 1 %
B-Constant [B25-50]
Dimensions
■
*1 Equivalent Series Resistance
mm
Nominal Frequency
(MHz)
Equivalent Series
Resistance max. [Ω]
1.6±±.1
Terminal land connections
(TOP VIEW)
26 to 38.4
80
50
#3
#4
38.4 to 76.8
COVER
#2
#1
#1,#3: Crystal
#2: Thermistor and GND (Connection with cover)
#4: Thermistor
Land pattern (Typical)
#1
#2
(C±.2)
#4
(±.55)
#3
(±.55)
±.75
1.±5
Please specify the model name, frequency, and specification number when you order products.
For further questions regarding specifications, please feel free to contact us.
1703B_NX1612SB_e
