nr-2c / nr-2b for high precision industry cu48_090920_nr-2c_e nr-2c nr-2b 10 to 25 mhz fundamental 12 pf 45 to 95 mhz 3rd overtone refer to *1 80 to 150 mhz 5th overtone 10 to 30 mhz fundamental 12 pf 10 10 ?6 5 10 ?6 ?10 to +60 ?40 to +85 10 w (max. 100 w) 25 to 75 mhz 3rd overtone refer to *2 50 to 100 mhz 5th overtone series resonance series resonance nr-2b nr-2c 10 to 30 25 to 30 30 to 75 50 to 100 nominal frequency (mhz) 25 50 45 60 equivalent series resistance max. [] fundamental 3rd overtone 5th overtone overtone order 10 to 25 45 to 95 80 to 150 nominal frequency (mhz) 40 60 80 equivalent series resistance max. [] fundamental 3rd overtone 5th overtone overtone order *1 equivalent series resistance (nr-2c) *2 equivalent series resistance (nr-2b) pb free quartz crystal units n specifications n features n dimensions when ordering our products, specify them with an ordering code that consists of the following : -- m if you have any queries concerning our standard frequencies and numbers for specifying orders, please contact our sales represe ntatives or visit our homepage (http://www.ndk.com/). model name frequency (max : 9 digits) number for specifying an order n how to specify an order example nr-2c-10.368m-std-cmb-4 the above specifications are standard for this ndk product. custom-made specifications such as load capacitance and temperature characteristics are also available. please contact ndk sales with your enquiries. nominal frequency overtone order frequency tolerance (25 3 ) frequency versus temperature characteristics (with reference to +25 c) operating temperature range storage temperature range equivalent series resistance level of drive load capacitance item model a highly reliable crystal unit with outstanding frequency stability and covering a broad frequency range. the product satisfies strict temperature characteristics standards, is shock resistant and has excellent frequency reproducibility. l mm nr-2b 6.900.20 2.200.20 8.00max 20min 3.75 0.20 7.90max 3.20max 0.350.05 mm nr-2c 6.900.20 2.200.20 6.00max 20min 7.90max 0.350.05 3.20max 3.75 0.20
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