crystal units cu52_110916_nr-2c_e nr-2c / nr-2b for high precision industry nr-2c nr-2b item model nr-2c nr-2b nominal frequency 10 to 25 mhz 45 to 95 mhz 80 to 150 mhz 10 to 30 mhz 25 to 75 mhz 50 to 100 mhz overtone order fundamental 3rd overtone 5th overtone fundamental 3rd overtone 5th overtone frequency tolerance (25 3 c) 10 10 ?6 frequency versus temperature characteristics (with reference to +25 c) 5 10 ?6 operating temperature range ?10 to +60 c storage temperature range ?40 to +85 c equivalent series resistance refer to *1 refer to *2 level of drive 10 w (max. 100 w) load capacitance 12 pf series resonance 12 pf series resonance specifcations a highly reliable crystal unit with outstanding frequency stability and covering a broad frequency range. the product satisfes strict temperature characteristics standards, is shock resistant and has excellent frequency reproducibility. features when ordering our products, specify them with an ordering code that consists of the following : model name - frequency (max : 9 digits) m - number for specifying an order example nr-2c-10.368m-std-cmb-4 if you have any queries concerning our standard frequencies and numbers for specifying orders, please contact our sales representatives or visit our homepage (http://www.ndk.com/). how to specify an order mm nr-2c 6.90 r0.20 2.20 r0.20 6.00max 20min 7.90max 0.35 r0.05 3.20max 3.75 r0.20 dimensions *1 equivalent series resistance(nr-2c) overtone order nominal frequency (mhz) equivalent series resistance max. [] fundamental 10 to 25 40 3rd overtone 45 to 95 60 5th overtone 80 to 150 80 *2 equivalent series resistance(nr-2b) overtone order nominal frequency (mhz) equivalent series resistance max. [] fundamental 10 to 30 25 3rd overtone 25 to 30 50 30 to 75 45 5th overtone 50 to 100 60 mm nr-2b 6.90 r0.20 2.20 r0.20 8.00max 20min 3.75 r0.20 7.90max 3.20max 0.35 r0.05 the above specifcations are standard for this ndk product. custom-made specifcations such as load capacitance and temperature characteristics are also available. please contact ndk sales with your enquiries.
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