Search within NDK


[PDF ]

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 configuration size is 1.2x1.0mm typ., H0.55 mm max.
  • A surface-mount crystal oscillator. (Reflow soldering is possible.)
  • Lead-free. Meets the requirements for re-flow profiling using lead-free solder.


  • RoHS compliant
  • Pb Free





Nominal Frequency (MHz) 38.4 ≤ F ≤ 96 38.4 ≤ F ≤ 96
Package Size (L×W×H : mm) 1.2×1.0×0.55 1.2×1.0×0.55
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 (Ω) Max. 60 (38.4 ≤ F < 52MHz)
Max. 50 (52 ≤ F < 76.8MHz)
Max. 40 (76.8 ≤ F ≤ 96MHz)
Max. 60 (38.4 ≤ F < 52MHz)
Max. 50 (52 ≤ F < 76.8MHz)
Max. 40 (76.8 ≤ F ≤ 96MHz)
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
Specification Number STD-CTR-1 Refer to *2

NTC Thermistor for Temperature Sensor

Resistance [R25] 100kΩ±1%
B-Constant [R25-50] 4250K±1%

Please specify the model name, frequency, and specification number when you order products.
For further questions regarding specifications, please feel free to contact us.

*1 If you have any other requests, NDK will study it.
*2 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 Dimensions



Copyright© 1997- NIHON DEMPA KOGYO CO., LTD.