河北福彩20选5开奖结果查询

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裸端子等器件使用的电流

【发布日期:2018-02-02 点阅次数:2565次 来源:美科达】

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河北福彩20选5开奖结果查询  MUQIAN,UL、IEC、CSAHEDINDENGJIGOUZAIQUEDINGLUODUANZICHANPINDEGONGLVHEXINGNENGGUIGESHIBINGMEIYOUTONGYIDEBIAOZHUN。YONGHUXUYAOLIJIEULHEIECGUIGEJIANDECHAYI。ZAIOUZHOUZHIZAODELUODUANZICHANPINDEGUIGECAIYONGIECBIAOZHUN,ERZAIMEIGUOZHIZAODECHANPINZECAIYONGULBIAOZHUN。

冷压端子

  ZHEILIANGZHONGBIAOZHUNZHIJIANDECHAYIFEICHANGDA。BULEJIECHANPINGUIGECEDINGFANGFADEGONGCHENGSHIHUIMAOXIANGDANGDADEFENGXIAN,LUODUANZIYINWEIXUANYONGDEQIJIANYOUKENENGHUIDABUDAOSUOXUYAODEGONGLVSHUIPING,HUOZHEXUANYONGQIJIANDEGUIGEYUANYUANCHAOCHULESHEJIXUYAO。ZAIOUZHOU,QIJIANDEDIANLIUEDINGZHISHITONGGUOJIANCEDIANLIUZENGJIASHIJINSHUDAOTIDEWENDULAIQUEDINGDE。DANGJINSHUYINJIAODEWENDUBIHUANJINGWENDUGAOCHU45℃SHI,CELIANGRENYUANJIUJIANGZHEISHIDEDIANLIUZUOWEIGAIQIJIANDEEDINGDIANLIUZHI(HUOZUIDADIANLIUZHI)。IECGUIGEDELINGYIXIANGSHIYUNXUDIANLIUZHI,TASHIZUIDADUANZIDIANLIUDE80%。YUCIBUTONG,ULBIAOZHUNJIANGSHIJINSHUDAOTIWENDUBIHUANJINGWENDUGAOCHU30℃SHIDIANLIUZHIDE90%ZUOWEIQIJIANDEDIANLIUBIAOCHENGZHI。

  由此可见,金属导体部分的温度在所有应用中都是非常重要的因素。对于工业设备这更为重要。因为工业设备通常需要在温度高达80℃的环境中工作。如果裸端子的温度比这一温度再高30℃;45℃,那么裸端子的温度将会超过100℃。根据所选择器件采用的标称值类型和绝缘材料,裸冷压端子河北福彩20选5开奖结果查询产品必须以低于额定值的电流工作,这样才能保证它们可在所希望的温度范围内可靠地工作。有时,适合于紧凑封装器件的材料可能无法很好地满足散热要求,因此此类裸端子器件使用时的电流必须大大低于额定值。

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