NC-18C (for High Precision Industry)

Features

High reliability crystal unit for OCXO with excellent frequency stability
HC-43/U Equivalent

NC-18C Picture

Specifications

Standard	Standard	Optional
Nominal Frequency (MHz)	10 ≤ F ≤ 20	10 ≤ F ≤ 20
Package Size (L×W×H : mm)	10.10×3.55×13.46	10.10×3.55×13.46
Overtone order	3rd overtone	3rd overtone
Operating Temperature Range (°C)	-40 to +120	-40 to +120
Storage Temperature Range (°C)	-55 to +125	-55 to +125
Turnover Point (°C)	+70 to +110	+70 to +110
Frequency Tolerance (at middle of turnover point)	Max. ±3×10^-6	Max. ±3×10^-6
Equivalent Series Resistance (Ω)	Max. 150	Max. 150
Level of drive (µW)	Max. 100	Max. 100
Load Capacitance (pF)	Series to 32	Series to 32
Frequency Aging (+25°C)	---	Max. ±100×10^-6/year (24H after ref)
Specification Number	STD-CWB-1	Refer to *2

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 (24.000000MHz 6digits),
      S1:Fundamental or S3:3rd Overtone - Operating Temperature Range (-40 to +120°C) - Frequency Tolerance (±3×10^-6) - Load Capacitance (10pF)
      NC-18C
      12.000000MHz
      S3-40120-3-10

Dimensions

RC-8 Dimensions

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