Crystal Units NX2520SA For OA / AV Mobile Communications/ Short-range Wireless ■ Features Ideal for such as bluetooth, Wifi, smartphone and tablet pc. ●Compact and thin. (2.5 × 2.0 × 0.50 mm typ.) ●Excellent environmental characteristics, including heat and shock resistance. ●Lead-free. Meets the requirements for re-flow profiling using lead-free solder. ■ Specifications Model Item Nominal Frequency NX2520SA 16 to 80 MHz Overtone Order 16 to 54 MHz Fundamental Frequency Tolerance (25 ±3 °C) ±15 × 10−6 ±10 × 10–6 Frequency versus Temperature Characteristics (with reference to +25 °C) ±25 × 10 ±10 × 10–6 Operating Temperature Range −6 −40 to +85 °C Storage Temperature Range –20 to +75 °C −40 to +85 °C Equivalent Series Resistance Refer to *1 Level of Drive 10 μW (Max. 200 μW) Load Capacitance 10 μW (Max. 100 μW) 8 pF Specifications Number STD-CSW-5 STD-CSX-1 ■ Dimensions mm Terminal land connections (TOP VIEW) 2.5±0.1 Nominal frequency (MHz) Equivalent Series Resistance max. [Ω] 16 to 20 80 20 to 30 60 30 to 35 50 35 to 80 40 #3 2.0±0.1 #4 *1 Equivalent Series Resistance #1 #2 0.50±0.05 *#2 and #4 are connected with a cover. (Please connect with a GND.) Land pattern (Typical) #2 #4 1.0 0.65 1.3 1.3 #1 0.8 #3 1.7 1.7 1.2 Please specify the model name, frequency, and specification number when you order products. For further questions regarding specifications, please feel free to contact us. - 11 - 110916_NX2520SA_e