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<div class="t_fsz"> <table cellspacing="0" cellpadding="0"><tr><td class="t_f" id="postmessage_393787"> <font size="5">电阻：RES1,RES2,RES3,RES4;封装属性为axial系列</font><br /> <font size="5">无极性电容：cap;封装属性为RAD-0.1到rad-0.4</font><br /> <font size="5">电解电容：electroi;封装属性为rb.2/.4到rb.5/1.0</font><br /> <font size="5">电位器：pot1,pot2;封装属性为vr-1到vr-5</font><br /> <font size="5">二极管：封装属性为diode-0.4(小功率）diode-0.7(大功率）</font><br /> <font size="5">三极管：常见的封装属性为to-18（普通三极管）to-22(大功率三极管）to-5(大功率达林</font><br /> <font size="5">顿管）</font><br /> <font size="5">电源稳压块有78和79系列;78系列如7805,7812,7820等</font><br /> <font size="5">79系列有7905,7912,7920等</font><br /> <font size="5">常见的封装属性有to126h和to126v </font><br /> <font size="5">整流桥：BRIDGE1,BRIDGE2: 封装属性为D系列（D-44,D-37,D-46）</font><br /> <font size="5">电阻： AXIAL0.3-AXIAL0.7 其中0.4-0.7指电阻的长度,一般用AXIAL0.4</font><br /> <font size="5">瓷片电容：RAD0.1-RAD0.3。 其中0.1-0.3指电容大小,一般用RAD0.1</font><br /> <font size="5">电解电容：RB.1/.2-RB.4/.8 其中.1/.2-.4/.8指电容大小。一般<100uF用</font><br /> <font size="5">RB.1/.2,100uF-470uF用RB.2/.4,>470uF用RB.3/.6</font><br /> <font size="5">二极管： DIODE0.4-DIODE0.7 其中0.4-0.7指二极管长短,一般用DIODE0.4</font><br /> <font size="5"><a href="http://light.oecr.com" target="_blank" class="relatedlink">发光</a>二极管：RB.1/.2</font><br /> <font size="5">集成块： DIP8-DIP40, 其中８－４０指有多少脚,８脚的就是DIP8</font><br /> <font size="5">贴片电阻</font><br /> <font size="5">0603表示的是封装尺寸 与具体阻值没有关系</font><br /> <font size="5">但封装尺寸与功率有关 通常来说</font><br /> <font size="5">0201 1/20W 0402 1/16W 0603 1/10W 0805 1/8W 1206 1/4W</font><br /> <font size="5">电容电阻外形尺寸与封装的对应关系是:</font><br /> <font size="5">0402=1.0x0.5 0603=1.6x0.8 0805=2.0x1.2 1206=3.2x1.6 1210=3.2x2.5</font><br /> <font size="5">1812=4.5x3.2 2225=5.6x6.5</font><br /> <font size="5">电阻类及无极性双端元件 AXIAL0.3-AXIAL1.0</font><br /> <font size="5">无极性电容 RAD0.1-RAD0.4</font><br /> <font size="5">有极性电容 RB.2/.4-RB.5/1.0</font><br /> <font size="5">二极管 DIODE0.4及 DIODE0.7</font><br /> <font size="5">石英<a href="http://material.oecr.com" target="_blank" class="relatedlink">晶体</a>振荡器 XTAL1</font><br /> <font size="5">晶体管、FET、UJT TO-xxx(TO-3,TO-5)</font><br /> <font size="5">可变电阻（POT1、POT2） VR1-VR5</font></td></tr></table> </div> <div id="comment_393787" class="cm"> </div> <div id="post_rate_div_393787"></div> </div> </div> </td></tr> <tr><td class="plc plm"> <div id="p_btn" class="mtw mbm hm cl"> <a href="http://club.oecr.com/home.php?mod=spacecp&ac=favorite&type=thread&id=62076&formhash=b8d5517f" id="k_favorite" onclick="showWindow(this.id, this.href, 'get', 0);" onmouseover="this.title = $('favoritenumber').innerHTML + ' 人收藏'" title="收藏本帖"><i><img src="static/image/common/fav.gif" alt="收藏" />收藏<span id="favoritenumber" style="display:none">0</span></i></a> <a class="followp" href="home.php?mod=spacecp&ac=follow&op=relay&tid=62076&from=forum" onclick="showWindow('relaythread', this.href, 'get', 0);" title="转播求扩散"><i><img src="static/image/common/rt.png" alt="转播" />转播</i></a> <a class="sharep" 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