二(er)極(ji)管(guan)是(shi)誕(dan)生(sheng)最(zui)早(zao)的(de)半(ban)導(dao)體(ti)器(qi)件(jian)之(zhi)一(yi)，應(ying)用(yong)非(fei)常(chang)廣(guang)泛(fan)，突(tu)出(chu)的(de)特(te)點(dian)是(shi)單(dan)向(xiang)導(dao)電(dian)性(xing)，即(ji)正(zheng)向(xiang)導(dao)通(tong)，反(fan)向(xiang)截(jie)止(zhi)特(te)性(xing)，常(chang)見(jian)二(er)極(ji)管(guan)有(you)整(zheng)流(liu)二(er)極(ji)管(guan)、穩壓...