作(zuo)為一(yi)(yi)(yi)名st一(yi)(yi)(yi)級代理商(shang)收(shou)購(gou)(gou)，不僅需(xu)求靈活的(de)(de)(de)(de)事務能(neng)力(li)，也(ye)需(xu)求把握st一(yi)(yi)(yi)級代理商(shang)的(de)(de)(de)(de)分類(lei)、類(lei)型辨(bian)認(ren)、用(yong)途等(deng)(deng)(deng)專業(ye)(ye)基(ji)礎常識(shi)，才能(neng)為企業(ye)(ye)提(ti)供更(geng)專業(ye)(ye)的(de)(de)(de)(de)收(shou)購(gou)(gou)主張。st一(yi)(yi)(yi)級代理商(shang)是(shi)用(yong)于(yu)制(zhi)造或拼裝(zhuang)電(dian)(dian)子整機用(yong)的(de)(de)(de)(de)根本零件(jian)稱(cheng)為st一(yi)(yi)(yi)級代理，元(yuan)(yuan)器(qi)(qi)材(cai)是(shi)電(dian)(dian)子電(dian)(dian)路中的(de)(de)(de)(de)獨立個體(ti)。自(zi)(zi)動元(yuan)(yuan)件(jian)指(zhi)(zhi)當(dang)獲得能(neng)量供給時(shi)(shi)能(neng)夠對電(dian)(dian)信(xin)號(hao)激發(fa)(fa)擴(kuo)大、振動、控制(zhi)電(dian)(dian)流或能(neng)量分配(pei)等(deng)(deng)(deng)自(zi)(zi)動功用(yong)甚至履行數據運算、處理的(de)(de)(de)(de)元(yuan)(yuan)件(jian)。自(zi)(zi)動元(yuan)(yuan)件(jian)包(bao)括各式各樣的(de)(de)(de)(de)晶體(ti)管(guan)、集成電(dian)(dian)路、印(yin)象管(guan)和顯示器(qi)(qi)等(deng)(deng)(deng)。被(bei)迫(po)元(yuan)(yuan)件(jian)相對于(yu)自(zi)(zi)動元(yuan)(yuan)件(jian)來(lai)(lai)說的(de)(de)(de)(de)，是(shi)指(zhi)(zhi)不能(neng)對電(dian)(dian)信(xin)號(hao)激發(fa)(fa)擴(kuo)大、振動等(deng)(deng)(deng)，對電(dian)(dian)信(xin)號(hao)的(de)(de)(de)(de)響應是(shi)被(bei)迫(po)允從(cong)的(de)(de)(de)(de)，而電(dian)(dian)信(xin)號(hao)按本來(lai)(lai)的(de)(de)(de)(de)根本特(te)(te)征(zheng)經由電(dian)(dian)子元(yuan)(yuan)件(jian)。最(zui)常見電(dian)(dian)阻、電(dian)(dian)容(rong)、電(dian)(dian)感等(deng)(deng)(deng)便是(shi)被(bei)迫(po)元(yuan)(yuan)件(jian)。有(you)源(yuan)(yuan)元(yuan)(yuan)器(qi)(qi)材(cai)對應的(de)(de)(de)(de)是(shi)自(zi)(zi)動元(yuan)(yuan)件(jian)。假如st一(yi)(yi)(yi)級代理商(shang)在(zai)做功課時(shi)(shi)，其內部存(cun)在(zai)電(dian)(dian)源(yuan)(yuan)存(cun)在(zai)的(de)(de)(de)(de)話，則這(zhe)種器(qi)(qi)材(cai)叫做有(you)源(yuan)(yuan)器(qi)(qi)材(cai)，需(xu)求能(neng)量的(de)(de)(de)(de)來(lai)(lai)歷而完結它特(te)(te)定的(de)(de)(de)(de)功用(yong)。有(you)源(yuan)(yuan)器(qi)(qi)材(cai)自(zi)(zi)身也(ye)消(xiao)耗電(dian)(dian)能(neng)，大功率的(de)(de)(de)(de)有(you)源(yuan)(yuan)器(qi)(qi)材(cai)一(yi)(yi)(yi)般加有(you)散熱器(qi)(qi)。與無源(yuan)(yuan)元(yuan)(yuan)件(jian)相對應的(de)(de)(de)(de)是(shi)被(bei)迫(po)元(yuan)(yuan)件(jian)。

電(dian)(dian)阻、電(dian)(dian)容(rong)和電(dian)(dian)感(gan)類元(yuan)(yuan)件(jian)(jian)在電(dian)(dian)路(lu)(lu)中(zhong)有信(xin)號經(jing)由就(jiu)能(neng)完結(jie)劃定功用，不需求外(wai)加(jia)激勵(li)電(dian)(dian)源(yuan)(yuan)，所以(yi)稱(cheng)為(wei)無源(yuan)(yuan)器材(cai)(cai)(cai)。無源(yuan)(yuan)器材(cai)(cai)(cai)自身消耗電(dian)(dian)能(neng)很小，或(huo)把電(dian)(dian)能(neng)轉變為(wei)不同方式(shi)的其他(ta)能(neng)量。st一(yi)級代理商從物(wu)理結(jie)構、電(dian)(dian)路(lu)(lu)功用和工程參數上，有源(yuan)(yuan)器材(cai)(cai)(cai)能(neng)夠分為(wei)分立器材(cai)(cai)(cai)和集成電(dian)(dian)路(lu)(lu)兩大類。分立元(yuan)(yuan)器材(cai)(cai)(cai)是與(yu)集成電(dian)(dian)路(lu)(lu)相對而言的。分立元(yuan)(yuan)器材(cai)(cai)(cai)便是指一(yi)般的電(dian)(dian)阻、電(dian)(dian)容(rong)、晶體管等單個電(dian)(dian)子元(yuan)(yuan)件(jian)(jian)，總稱(cheng)分立元(yuan)(yuan)件(jian)(jian)。