项 目 符号 单位 型号 最小 条件 标频 of kHz 32.768 30 100 频差 △f/of ppm ±20 ±5 ±100 At25℃ 温度差系数 β ppm/(℃)2 -0.034±0.006 拐点温度 Tm 25±5 工作温度范围 Topr -10~+60 存储温度范围 Tstg -40~±85 品质因素 90,000TYP 等效电阻 Ri KΩ 35 20 40 25℃ 静电容 Co pF 1.35TYP 负载电容 Ci pF 0.0030TYP 动态电容 CL pF 12.5 Please specify 绝缘阻抗 IR MΩ 500 DC100V±15V 激励功率 DL μW 1 电容比率 r 450TYP 年老化率 △f/of ppm ±5.0 At25℃±3℃
Enclosure UM-5 UM-4 UM-1 Frequency Range 12-150MHz 18-150MHz 3.5-150MHz Frequency Tolerance AT 25℃ ±50ppm max.(See Options) Operating Temperature Range 0 to 70℃Std .,(See Options) Storage Tempeature Range -55 to +125℃ Frequency Stability Over Temp ±50ppm(See Options) Operation Mode 1.8MHz to 27.000MHz(Fundamental) Equivalent Series Resistance See the table Shunt Capacitance(Co) 7.0 pF max. Load Capacitance(CL) 18pF std.(See Options) Drive Level 1mW max. Aging @25℃ per Year ±3ppm max.available Insulation Resistance 500 MΩmin.at100Vdc±15V