产品技术参数： 1 标称频率nominal frequency 6.000~54.000mhz 2 壳形holder type hc-49s 3 振动模式oscillator mode 基频 4 调整频差(25℃) frequency stability (25℃) ±30ppm 5 工作温度范围operating temperature range -20℃~+70℃ 6 温度频差frequency stability vs. temp ±30ppm 7 存储温度范围storage temperature range -40℃~+85℃ 8 负载电容load capacitance 20pf 9 谐振电阻equivalent series resistance 30kωmax 10 静电容shunt capacitance 5.0pf max 11 激励功率drive level 100μw 12 绝缘电阻iulation resistance 500mωat dc100v 13 年老化率aging rate a year ±5ppm