压降电容（x2）电容器
feature（特点）：
1、宽温度、频率范围内，容量和df具有高稳定性
high stability of capacitance and df versus wide temperature and frequency range ;
■ 高电流承受及高绝缘强度
high transient endurance and high dielectric strength ;
■ 长时间工作于严酷环境下（如高温高湿）容量稳定
high stability of capacitance under serving ambient condition(such as high temperature and high humidity);
■ 自愈性好，能承受浪涌电压冲击
excellent self-healing ,withstanding surge-voltage stressing.
application（用途）：
■ 电源串联连接用 for connection in series with power supply
■ 阻容降压用 for capacitive divider power supply
■ 线间跨接，抑制电源电磁干扰across- the-line, spark killer;
■ 开关电源switching power supply.