MBRS340T3G MBRS340T3G 其他电子管 MBRS340T3G 肖特基二极管 MBRS340T3G(MS) MBRS340T3G,B34, MBRS340T3G/MBRS340 MBRS340T3H MBRS340TR MBRS340TRPBF MBRS350LT1