Crystal UnitsCrystal Units
2003C_NX1210AC_e
NX1210AC
For Mobile Communications
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 conguration size is 1.2x1.0mm typ., H0.55 mm Max.
● A surface-mount crystal oscillator. (Reow soldering is possible.)
● Lead-free. Meets the requirements for re-ow proling using lead-free solder.
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Features
Item
Model
NX1210AC
Standard Standard Optional
Nominal Frequency (MHz) 38.4 to 96 38.4 to 96
Overtone Order Fundamental Fundamental
Frequency Tolerance (25 ± 3°C ) ±12 × 10
−6
±12 × 10
−6
Frequency versus Temperature Characteristics
(with reference to +24.5 °C)
±12 × 10
−6
Please contact us about temp extended case, *1
Operating Temperature Range (°C) −30 to +85
Please contact us about temp extended case, *1
Storage Temperature Range (°C) −40 to +85 −40 to +85
Equivalent Series Resistance Refer to *2 Refer to *2
Level of Drive (μW) 10 (Max. 100) 10 (Max. 100)
Load Capacitance (pF) 7 6 to 12
Frequency Aging (+25°C) --- Max. ±3 × 10
−6
/ year *1
Specications Number STD-CTR-1 Refer to *3
Please specify the model name,frequency,and specication number when you order products.
For futher questions regarding specications, please feel free to contact us.
*1 If you have any other requests, NDK will study it.
*3 Ordering information: Overtone Order Fundamental / 3rd Overtone, the Operating Temperature Range, Frequency versus Temperature
Characteristics, Frequency Tolerance, and Load Capacitance.
Ex. Model, Frequency (38.400000MHz 6digits), S1:Fundamental or S3:3rd Overtone
- Operating Temperature Range (-30 to +85°C) - Frequency versus Temperature Characteristics (±12×10
-6
)
- Frequency Tolerance (±12×10
-6
) - Load Capacitance (7pF)
NX1210AC
38.400000MHz
S1-3085-12-12-7
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Specications
mm
Land pattern (Recommended)
#1, #3 : X’ TAL
#2 : Thermistor and GND
(Connection with cover)
#4 : Thermistor
1.2±0.1
#1 #2
#4 #3
1.0±0.1
0.55Max.2-(0.30)
4-(0.41) 2-(0.40)
4-(0.36)
Terminal land connections
(TOP VIEW)
#4
#1
#3
#2
COVER
#4
#1
#3
#2
0.83
0.43
0.70
0.50
(󱛍0.12)
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Dimensions
*2 Equivalent Series Resistance
Nominal Frequency
(MHz)
Equivalent Series
Resistance
Max. (Ω)
38.4 to 52 60
52 to 76.8 50
76.8 to 96 40
Directive 2011/65/EU
Directive (EU) 2015/863
NTC Thermistor for Temperature Sensor
Resistance (R25) 100k Ω ± 1 %
B-Constant (B25-50) 4250K ± 1 %