8.2V稳压管 8.2X-DZD8.2X-TA 8.2Y 8.2Y-DZD8.2Y 8.2Y-DZD8.2Y- 8.2Y-DZD8.2Y-TA 8.2Z 8.3000MHZ 8.30101E+11 8.30104E+11