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| Crystal Units NX1255GB / NX1255GC n Features A surface-mount type crystal unit, ideal for OA (office automation) and AV (audiovisual) applications; compatible with low frequencies. (NX1255GB : 12.0 x 5.5 x 2.5mm typ.) lExcellent electrical performance, ideal for OA and AV applications. lExcellent environmental characteristics, including heat and shock resistance. lAn enriched assortment of frequencies from a low frequency of 3.5MHz. lLead-free. Meets the requirements for re-flow profiling using lead-free solder. lNX1255GC is a low-height type (1.8mm high), and ideal for PDA applications. For OA / AV n Specifications Item Frequency Range Overtone Order Frequency Tolerance (25 3) Temperature Characteristics (with reference to +25C) Operating Temperature Range Equivalent Series Resistance Drive Level Load Capacitance Model NX1255GB/NX1255GC 3.5 to 26.5MHz Fundamental 50 x 10-6 50 x 10-6 -10 to +70 Refer to *1 50W(Max:500W) 12pF 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. 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 NX1255GB-3.579545M-STD-CSA-1 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 11.80.15 5.50.15 *1 Equivalent Series Resistance Frequency (MHz) (Range) 3.5 to 4 4 to 8 8 to 12 12 to 26.5 #1 #2 Equivalent Series Resistance max.[] 150 120 80 50 Internal connections(TOP VIEW) #4 #3 NX1255GB : H=2.50.15 NX1255GC : H=1.8 +0.2 -0.1 5.08 2.0 H Reference land pattern #2 2.2 4.4 2.4 1.5 #1 #4 #3 5.08 cu37_071108_NX1255GB_e1 |
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