為什么工控(kong)主(zhu)(zhu)(zhu)板(ban)(ban)(ban)的價(jia)格(ge)比商(shang)用(yong)主(zhu)(zhu)(zhu)板(ban)(ban)(ban)高(gao)?工控(kong)主(zhu)(zhu)(zhu)板(ban)(ban)(ban)相對商(shang)用(yong)主(zhu)(zhu)(zhu)板(ban)(ban)(ban)好在(zai)哪(na)?相信很多用(yong)戶朋友都有(you)這個疑問，下面我們就從(cong)主(zhu)(zhu)(zhu)板(ban)(ban)(ban)元器件的用(yong)料與設計方面分析(xi)下：
　　
　　商用主板：
　　
　　商用(yong)主板(ban)(ban)由于其更新換(huan)代的(de)(de)(de)(de)速度(du)比較(jiao)快，且對產(chan)品的(de)(de)(de)(de)穩定性及使用(yong)環境的(de)(de)(de)(de)要求比較(jiao)低，故此追求的(de)(de)(de)(de)是產(chan)品的(de)(de)(de)(de)時(shi)效性，以(yi)及本身(shen)產(chan)品的(de)(de)(de)(de)市場定位，對元器件選(xuan)擇要求上一(yi)般只需滿足系統(tong)運行(xing)2到3年的(de)(de)(de)(de)使用(yong)壽命即可(ke)(3年之后大部分已經更新換(huan)代了)，元器件的(de)(de)(de)(de)用(yong)料(liao)上使用(yong)普(pu)(pu)通(tong)級別的(de)(de)(de)(de)就可(ke)以(yi)了。例如電容，商用(yong)主板(ban)(ban)都(dou)是大量使用(yong)普(pu)(pu)通(tong)的(de)(de)(de)(de)電解電容，一(yi)是出于商用(yong)市場產(chan)品的(de)(de)(de)(de)使用(yong)考慮(lv)(lv)，二是為降低主板(ban)(ban)的(de)(de)(de)(de)成(cheng)本考慮(lv)(lv)。
　　
　　工(gong)控主(zhu)板：
　　
　　1)工控主板的元器件(jian)
　　
　　工控主板選(xuan)料會選(xuan)用經(jing)過長時間，高(gao)要求驗證(zheng)元(yuan)(yuan)器件，用以保證(zheng)產品(pin)在惡(e)劣條件下高(gao)可靠(kao)性要求。例(li)如工(gong)控主(zhu)板的元(yuan)(yuan)器件需要適應寬溫(wen)環境(-20℃~60℃)，如固態電容器，保證(zheng)在惡(e)劣環境下(壽命期內(nei)永久開機、氣候惡(e)劣、潮濕、振動、多塵、輻射(she)、高(gao)溫(wen)等(deng)等(deng))正常工(gong)作(zuo);主(zhu)板元(yuan)(yuan)器件需要耐高(gao)溫(wen)、抗潮濕等(deng)等(deng)。
　　
　　2)工控(kong)主(zhu)板(ban)的電容
　　
　　工(gong)控主(zhu)板(ban)采用(yong)(yong)的(de)(de)(de)(de)是高質(zhi)(zhi)量的(de)(de)(de)(de)貼(tie)片式(shi)的(de)(de)(de)(de)固態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)、鉭、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)，即(ji)使(shi)(shi)(shi)使(shi)(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)，對其(qi)品質(zhi)(zhi)、性能及(ji)壽(shou)命(ming)要求也遠高于商(shang)用(yong)(yong)產品，現在的(de)(de)(de)(de)工(gong)控主(zhu)板(ban)都(dou)基(ji)本(ben)(ben)(ben)上(shang)(shang)采用(yong)(yong)固態電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)，特別中高端(duan)的(de)(de)(de)(de)工(gong)控主(zhu)板(ban)。商(shang)用(yong)(yong)主(zhu)板(ban)基(ji)本(ben)(ben)(ben)都(dou)是大(da)(da)量采用(yong)(yong)針(zhen)腳式(shi)的(de)(de)(de)(de)大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)，因為(wei)大(da)(da)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)成本(ben)(ben)(ben)低、容(rong)(rong)(rong)(rong)(rong)(rong)值大(da)(da)一(yi)個可(ke)以頂多個貼(tie)片或坦電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)。從性質(zhi)(zhi)來(lai)說(shuo)，電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)穩(wen)定性不及(ji)鉭電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)、陶瓷電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)高，壽(shou)命(ming)不及(ji)它們長，耐高溫(wen)程度不及(ji)它們好。貼(tie)片式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)比針(zhen)腳式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)更加穩(wen)定。從價(jia)格上(shang)(shang)，鉭電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)比普通的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)要貴(gui)，且由于鉭電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)量較小，使(shi)(shi)(shi)用(yong)(yong)在主(zhu)板(ban)上(shang)(shang)時，需要使(shi)(shi)(shi)用(yong)(yong)更多數(shu)量的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)，單單鉭電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)成本(ben)(ben)(ben)就(jiu)是電(dian)(dian)(dian)(dian)(dian)(dian)解(jie)(jie)電(dian)(dian)(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)的(de)(de)(de)(de)幾(ji)十(shi)倍，這也是導致工(gong)控主(zhu)板(ban)比商(shang)用(yong)(yong)主(zhu)板(ban)成本(ben)(ben)(ben)價(jia)格高的(de)(de)(de)(de)原(yuan)因之一(yi)。
　　
　　3)工控(kong)主板的PCB
　　
　　商(shang)用(yong)主板(ban)采用(yong)的是4層(ceng)(ceng)PCB設(she)計，一般的PCB線路板(ban)分有四層(ceng)(ceng)，最(zui)上和(he)最(zui)下(xia)的兩(liang)層(ceng)(ceng)是信號層(ceng)(ceng)，中間兩(liang)層(ceng)(ceng)是接地層(ceng)(ceng)和(he)電(dian)(dian)源層(ceng)(ceng)，將接地和(he)電(dian)(dian)源層(ceng)(ceng)放在中間。工業(ye)主板(ban)采用(yong)的是6層(ceng)(ceng)以上PCB線路板(ban)設(she)計，其(qi)設(she)計是為了加強主板(ban)的抗(kang)電(dian)(dian)磁(ci)干擾、電(dian)(dian)磁(ci)兼容能力(li)，增強主板(ban)的穩定性等等。
　　
　　4)工控主板的壽命
　　
　　與商(shang)用(yong)主板2到3年(nian)使用(yong)壽(shou)命(ming)不同，大多數的(de)(de)工控主板壽(shou)命(ming)要求在3年(nian)以上，部分高品質的(de)(de)工控主板，使用(yong)壽(shou)命(ming)甚至達到5—7年(nian)。