Quartz Crystal Units NR-2C / NR-2B For High Precision Industry n Features A highly reliable crystal unit with outstanding frequency stability and covering a broad frequency range. lThe product satisfies strict temperature characteristics standards, is shock resistant and has excellent frequency reproducibility. NR-2C NR-2B Pb Free n Specifications Model Item 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 ) 10 x 10-6 Frequency versus temperature characteristics (with reference to +25 C) 5 x 10-6 Operating temperature range -10 to +60 Storage temperature range -40 to +85 Refer to *1 Equivalent series resistance Series resonance 12 pF Load capacitance *1 Equivalent Series Resistance (NR-2C) Overtone Order Fundamental 3rd overtone 5th overtone Refer to *2 10 W (Max. 100 W) Level of drive Nominal frequency (MHz) 10 to 25 45 to 95 80 to 150 Series resonance 12 pF *2 Equivalent Series Resistance (NR-2B) Equivalent Series Resistance max. [] 40 60 80 Overtone Order Fundamental 3rd overtone Nominal frequency (MHz) 10 to 30 25 to 30 30 to 75 50 to 100 5th overtone 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. Equivalent Series Resistance max. [] 25 50 45 60 n How to Specify an Order 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/). n Dimensions mm NR-2C mm NR-2B 2.200.20 6.900.20 20min 20min 3.75 0.20 7.90max 2.200.20 8.00max 6.00max 6.900.20 0.350.05 3.20max 3.75 0.20 7.90max 0.350.05 3.20max cu48_090920_NR-2C_e