EM2500X EPCOS爱普科斯放电管 B88069X0440S102 5.5*6 2500V

联想 ThinkPad X140E 主板 E1/EM-2500 DALI2KMB8D0 04X5385

贴插361KD53-2035-23-2035-25-2R-2000-CG32.7L-EM2500X-B