Quartz Crystal Units NX1255GB / NX1255GC For OA / AV Features A surface-mount type crystal unit, ideal for OA (office automation) and AV (audiovisual) applications; compatible with low frequencies. (NX1255GB : 11.8 x 5.5 x 2.5 mm typ.) Excellent electrical performance, ideal for OA and AV applications. Excellent environmental characteristics, including heat and shock resistance. An enriched assortment of frequencies from a low frequency of 3.5 MHz. Meets the requirements for re-flow profiling using lead-free solder. NX1255GC is a low-height type (1.8 mm height), and ideal for PDA applications. Specifications Model Item Nominal frequency NX1255GB / NX1255GC 3.5 to 26 MHz Overtone order Fundamental Frequency tolerance (25 3 C) 50 x 10-6 Frequency versus temperature characteristics (with reference to +25 C) 50 x 10-6 Operating temperature range -10 to +70 C Storage temperature range -40 to +85 C Equivalent series resistance Refer to *1 Level of drive 50 W (Max. 500 W) Load capacitance 12 pF 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. 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-8.000M-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/). Dimensions Terminal land connections (TOP VIEW) 11.80.15 #3 5.50.15 #4 #1 *1 Equivalent Series Resistance Nominal frequency (MHz) Equivalent Series Resistance max. [] 3.5 to 4 150 4 to 8 120 8 to 12 80 12 to 26 50 Land pattern (Typical) 2.4 #2 4.4 #1 2.0 2.2 H NX1255GB : H=2.50.15 NX1255GC : H=1.8 +0.2 -0.1 5.08 1.5 #2 mm #4 #3 5.08 cu45_110228_NX1255GB_e