洪先生:021-6199478713296044787黄小姐:1381694431015800452151***:920693984网址:上海皓旌电子科技有限公司(原上海万启)全新原装，***代理，大量现货库存英飞凌infineon,欧派克EUPEC,西门康SEMIKRON,西门子SIEMENS，三菱MITSUBISHI，富士FUJI,东芝TOSHIBA，艾赛斯IXYS,西玛WESTCODE，丹尼克斯DYNEX，ABB，西班牙CATELEC，三社，三垦，摩托罗拉，英达，日立，仙童，IR，POWERSEM，PRX，POWER，TYCO等公司生产的IGBT,TGCT,IPM，PIM，GTR，GTO,可控硅，快***二级管,整流桥；日之出HINODE、罗兰FERRAZ、博仕曼BUS***ANN，埃芬EFEN，进口快速熔断器,美国CDE吸收高频无感电容，电解电容,IGBT驱动电路,ABB变频器主控板,驱动板，控制板变频器风扇励磁单元电源板等自动化产品全新原装，***代理，大量现货库存期待与贵公司的合作！愿我公司能给贵公司带来更多的财富!有些朋友不知道测试二极管的好坏，其实和测普通的二极管一样，很简单的，分为正向特性测试和反向特性测试，下面一一解答：正向特性测试是把万用表的黑表笔（表内正极）搭触二极管的正极，红表笔（表内负极）搭触二极管的负极。若表针不摆到0值而是停在标度盘的中间，这时的阻值就是二极管的正向电阻，一般正向电阻越小越好。若正向电阻为0值，说明管芯短路损坏，若正向电阻接近无穷大值，说明管芯断路。短路和断路的管子都不能使用。反向特性测试是把万用表的红表笔搭触二极管的正极，黑表笔搭触二极管的负极，若表针指在无穷大值或接近无穷大值，二极管就是合格的。西玛代理，WESTCODE代理，西玛二极管，西玛晶闸管，西玛快速二极管，西玛快速可控硅，西玛快速晶闸管，WESTCODE二极管，WESTCODE晶闸管，WESTCODE可控硅，WESTCODE快速晶闸管，WESTCODE快速二极管，西玛WESTCODE圆饼晶闸管，平板晶闸管，平板式双向晶闸管，平板快速晶闸西玛GTOWESTCODEGTO西码可控硅--进口可控硅模块--WESTCODE--可控硅☆晶闸管WX171RE250WX171RE280WX171RE320WX171RF250WX171RF280WX171RF320WX171SE250WX171SE280WX171SE320WX171SF250WX171SF280WX171SF320SW16PH***0SW20PH***0SW24PH***0SW16PH***0SW20PH***0SW24PH***0SW16PHN320SW20PHN320SW24PHN320SW16HH***0SW20HH***0SW24HH***0SW16HHN320SW20HHN320SW24HHN320SW16PHR380SW20PHR380SW24PHR380SW16PHN380SW20PHN380SW24PHN380SW16HHR380SW20HHR380SW24HHR380SW16HHN380SW20HHN380SW24HHN380SW15PHR300SW04PHN300SW12PHN300SW15PHN300SW12HHR300SW15HHR300SW15HHN300SW04PHR400SW12PHR400SW15PHR400SW04PHN400SW12PHN400SW15PHN400SW04HHR400SW12HHR400SW15HHR400SW04HHN400SW12HHN400SW15HHN400SW04PHR470SW12PHR470SW15PHR470SW04PHN470SW12PHN470SW15PHN470SW04HHR470SW12HHR470SW15HHR470SW04HHN470SW12HHN470SW15HHN470SW36HXC270SW45HXC270SW16CXC320SW20CXC320SW24CXC320SW16CXC380SW20CXC380SW24CXC380SW06CXC300SW12CXC300SW15CXC300SW04CX***00SW12CX***00SW15CX***00SW04CX***70SW12CX***70SW15CX***70SW50CXC350SW56CXC350SW20CX***45SW32CX***45SW20HX***45SW32HX***45SW30CXC515SW38CXC515SW45CXC515SW16CXC565SW20CXC565SW25CXC565SW16HXC565SW20HXC565SW25HXC565SW50CXC500SW60CXC500SW60DXC500SW30CXC595SW36CXC595SW50CXC620SW60CXC620SW24CXC635SW30CXC635SW40CXC680SW50CXC680SW08CXC805SW18CXC805SW22CXC805SW25CXC805SW40CXC815SW50CXC815SW36CXC818SW45CXC920SW02CXC935SW10CXC935SW12CXC935SW14CXC935Wx254MC500Wx254MC520Wx254MC600SW30CXC930SW40CXC930SW16CXC950SW20CXC950SW25CXC950SW16CXC11CSW20CXC11CSW25CXC11CSW30CXC1170SW40CXC1170SW36CXC1100SW45CXC1100SW36FXC1100SW45FXC1100WX166MC320WX166MC360WX166M***00WX166M***20WX166M***80SW28CXC12CSW35CXC12CWx253M***20Wx253M***40Wx253M***50SW30CXC13CSW40CXC13CSW30FXC13CSW40FXC13CSW08CXC14CSW16CXC14CSW20CXC14CSW22CXC14CWx252MC360Wx252MC380Wx252M***00SW16CXC16CSW22CXC16CSW28CXC16CSW16FXC16CSW22FXC16CSW28FXC16CWx251MC300Wx251MC320Wx251MC350SW40CXC15CSW45CXC15CSW50CXC15CSW40DXC15CSW45DXC15CSW50DXC15CSW30CXC17CSW34CXC17CSW30FXC17CSW34FXC17CWX199MC160WX199MC200WX199MC240WX199MC280SW34CXC1870SW45CXC1870SW34DXC1870SW45DXC1870SW20CXC20CSW24CXC20CSW30CXC20CSW20DXC20CSW24DXC20CSW30DXC20CSW02CXC19CSW06CXC19CSW02DXC19CSW06DXC19CSW24CXC18CSW28CXC18CSW32CXC18CSW35CXC18CSW24DXC18CSW28DXC18CSW32DXC18CSW35DXC18CSW20CXC21CSW24CXC21CSW30DXC21CWX043TC500WX043TC560WX043TD500WX043TD560SW02CXC22CSW10CXC22CSW14CXC22CWx249MC120Wx249MC140Wx249MC150SW02CXC27CSW10CXC27CSW14CXC27CSW02FXC27CSW10FXC27CSW14FXC27CSW12CXC26CSW18CXC26CSW22CXC26CSW12DXC26CSW18DXC26CSW22DXC26CSW12CXC2850SW20CXC2850SW24CXC2850SW12DXC2850SW20DXC2850SW24DXC2850Wx248MC030Wx248MC060SW02CXC30CSW10CXC30CSW14CXC30CSW02DXC30CSW10DXC30CSW14DXC30CSW02CXC32CSW10CXC32CSW14CXC32CSW02DXC32CSW10DXC32CSW14DXC32CWX173DB008WX173DB012WX173DB020WX181QK200WX181QK220Wx181QK100Wx181QK180WX183QK050WX183QK080WX207HL300WX207HL350WX207HM300WX207HM350W4987MK200W4987MK220***20MCR094***25MCR094***20MCN094***25MCN094***12PHR100***18PHR100***12PHN100***18PHN100***20PHR134***25PHR134***20PHN134***25PHN134***20PCR134***25PCR134***20PCN134***25PCN134***20PHR144***25PHR144***20PHN144***25PHN144***20PCR144***25PCR144***20PCN144***25PCN144***20PHR174***12PHN174***20PHN174***12PHR170***14PHR170***12PHN170***14PHN170***40CXC344***45CXC344***20CXC294***25CXC294***20CXC804***25CXC804***40CXC604***45CXC604***40CXC614***45CXC614***20CXC334***25CXC334***40CXC864***45CXC864***40FXC864***45FXC864***20CXC915***26CXC915***02CXC504***06CXC504***36CXC954***42CXC954***45CXC954***36DXC954***42DXC954***45DXC954***25CXC964***28CXC964***35CXC964***25DXC964***28DXC964***35DXC964***18CXC968***25CXC968***18FXC968***25FXC968***20CXC974***30CXC974***20DXC974***24DXC974***30DXC974***30HXC084***36HXC084***45HXC084***30HXC103***35HXC103***16CXC134***20CXC134***25CXC134***12CXC100***18CXC100***14CXC144***22CXC144***28CXC144***35HXC164***45HXC164***12CXC174***16CXC174***20CXC174***08CXC170***14CXC170***12CXC176***16CXC176***20CXC176***40CXC364***45CXC364***56CXC274***60CXC274***40CXC374***45CXC374***04CXC190***12CXC190***16CXC190***14CXC220***16CXC220***26CX***74***30CX***74***36CX***74***14CXC224***18CXC224***21CXC224***20CXC524***25CXC524***12CXC724***16CXC724***20CXC724***10CXC314***12CXC314***50CXC574***60CXC574***40CXC624***45CXC624***26CXC824***36CXC824***26CXC824***36CXC824***16CXC924***25CXC924***40CXC394***45CXC394***40FXC394***45FXC394***12CXC514***16CXC514***30CXC384***40CXC384***30DXC384***40DXC384MX070VC200MX070VC250F0258WC140F0258WC180F0400LC140F0400LC180FX055V***50FX055VC520FX055VF450FX055VF520F0500LC080F0500LC120FX004NC140FX004NC180FX056NC200FX056NC250FX021NC080FX021NC120N086PH12N086PH16N086RH12N086RH16N105PH12N105PH16N105RH12N105RH16N170PH12N170PH16N195PH12N195PH16N275PH02N275PH08N086CH12N086CH16N105CH12N105CH16N170CH12N170CH16N195CH12N195CH16N275CH02N275CH08N282SH20N255CH40N255CH45N257CH38N257CH42N260CH30N260CH36N281SH12N281SH18N280SH12N280SH16N283SH12N283SH16N320CH40N320CH45N330SH20N330SH26N310SH02N310SH06N360CH30N360CH38N350SH12N350SH18N370SH12N370SH18N390CH30N390CH32N500CH38N500CH42N520SH12N520SH16N450SH20N450SH26N570CH30N570CH36N1483CH36N1483CH42N1483DH36N1483DH42N1863CH20N1863CH22N1863CH28N560CH40N560CH45N490SH20N490SH26N620SH24N620SH30N510SH16N510SH20N680SH20N680SH26N630CH30N630CH36N640CH24N640CH30N540SH12N540SH18N600SH12N600SH16N740SH12N740SH16N610SH06N610SH10N750CH40N750CH45N750DH40N750DH45N760CH18N760CH22N850CH30N850CH36N990CH12N990CH16N880CH24N880CH30N900CH20N900CH26N980CH160N980CH220N1463CH36N1463CH42N1463DH36N1463DH42N1400CH14N1400CH20N1400CH22N1663CH30N1663CH35N1663DH30N1663DH35NX188ZC120NX188ZC160NX188ZD120NX188ZD160N1600CH08N1600CH12P202CH08P202CH08P202CH10P202CH10P202CH10P202CH12P202CH12P202CH12P214CH04P214CH04P214CH04P215PH06P215PH06P215PH08P215PH08P215PH08P270PH04P270PH06P200CH12P200CH12P205PH10P205PH10P205PH12P205PH12P205PH12P215PH04P215PH04P215PH04P215PH06N1863DH20N1863DH22N1863DH28N1683CH30N1683CH35N1883CH20P200CH12P202CH08N1883CH28N1983CH18N1983CH22P201CH60P201CH65Kx191L***40Kx191L***80P214CH04Kx191LC520Kx191LG440Kx191LG480Kx191LG520KX190LC360KX190L***20P410CH60P410CH65KX193KX193KX193R295CH36R295CH42KX192NC360KX192N***20P440CH32P440CH36P480CH30P480CH32KX120VC600KX120VC650KX120VF600KX120VF650P855CH40P855CH44P855DH40P855DH44KX162VC360KX162V***20KX162VF360KX162VF420P880CH36P880CH42P880DH36P880DH42P1063CH60P1063CH65KX142E***50KX142E***80KX142EC520KX094F***50KX094F***80KX094FC520KX094FD450KX094FD480KX094FD520200PH10P200PH10P200PH10P200PH12P200PH12P200PH12P202PH10P202PH10P202PH10P202PH12P202PH12P202PH12P214PH04P214PH04P214PH04P214PH08P214PH08P214PH08P205PH10P300SH12P300SH12P300SH12P300SH12P300SH12P300SH12R210SH10R210SH10R210SH10R185SH10R185SH10R185SH10R185SH12R185SH12R185SH12R216SH08R216SH08R216SH08R175SH20R175SH22R175SH22R175SH22R175SH22R175SH25R175SH25R175SH25R175SH25R190SH14R190SH14R190SH14R190SH14R200SH16R200SH16R200SH16R200SH18R200SH18R270SH08R270SH08R270SH08R270SH06R270SH06R270SH06R270SH12R270SH12R270SH12R200SH21R219SH08R219SH08R219SH08R219SH08R219SH08R219SH10R219SH10R219SH10R219SH10R219SH10R219SH12R219SH12R219SH12R219SH12R219SH12R220SH08R220SH08R220SH08R220SH08R220SH10R220SH10R220SH10R220SH12R220SH12220SH12R220SH12R180SH10R190SH10R190SH10R190SH10R190SH10R190SH1R190SH12R190SH12R190SH12R200SH18R200SH20R200SH20R200SH20R200SH21R200SH21R180SH06R180SH06R180SH06R180SH10R180SH10R181SH14R181SH14R181SH14R181SH16R181SH16R181SH16R175SH20R175SH20R175SH20R210SH12R210SH12R210SH12R210SH14R210SH14R210SH14R185SH08R185SH08R185SH08R216SH10R216SH10R216SH10R216SH12R216SH12R216SH12P214CH06P214CH06P214CH06P214CH06P214CH08P214CH08P214CH08P214CH08P205CH12P205CH12P205CH12P215CH04P215CH04P215CH04P215CH08P215CH08P215CH08P270CH04P270CH04P270CH06P270CH06P280SH04P280SH04P280SH04P280SH06P280SH06P280SH06D315CH34D315CH36D315CH36D350SH24D350SH24D350SH24D350SH26D350SH26R350SH12R350SH12R350SH12R355SH08R355SH08R355SH08R355SH08R355SH10R395SH20R395SH20R395SH21R395SH21R395SH21R395SH21D391SH22D350SH26***5SH10***5SH10***5SH10***5SH12***5SH12***5SH12***5SH14R355SH10R355SH10R355SH10R355SH12R355SH12R355SH12R355SH12R355SH12R395SH14R395SH14R395SH14R395SH18R395SH18R395SH18R395SH18R395SH20R395SH20***5SH14***5SH14R350SH08R350SH08R350SH08R350SH10R350SH10R350SH10R305SH18R305SH18R305SH18R305SH18R305SH20R305SH20R305SH20R305SH20R305SH21R305SH21R305SH21R305SH21D315CH32D315CH32D315CH32D315CH32D390SH25D450SH10D450SH10D450SH10D450SH12D450SH12D390SH18D390SH18D390SH21D390SH21D390SH21D390SH22D390SH22D390SH22D390SH25D390SH25D405SH14D405SH14D405SH18405SH18D405SH18D405SH18D405SH18R500CH20R600CH20R600CH20R600CH20R600CH21R600CH21R600CH21R600CH25R600CH25R600CH25R610CH22RX075FD28KRX075FD28LRX075FD28MRX075FD28NRX075FD28NRX075FD28NRX075FC28NRX075FD24KRX075FD24LRX075FD24MRX075FD24NRX075FD24NRX075FD24NRX075FC24NRX075FC24NRX075FC24NRX075FC28KRX075FC28LRX075FC28MRX075FC28NR500CH20R500CH20R500CH28R500CH28R500CH28R500DH20R500DH20D450SH12R400SH08R400SH08R400SH08R400SH08R400SH10R400SH10R400SH10R400SH10R500DH20R500DH28R500DH28R500DH28R600CH18R600CH18R600CH18R400SH12R400SH12R400SH12R400SH12D405SH14D405SH14D405SH14D391SH22D391SH22D391SH22D391SH25D391SH25D391SH25D391SH25D390SH18R1200CH12R1200CH12R1200CH12R1966CH16R1966CH16R1966CH16R1966CH16R1966CH16R1966CH20R1966CH20R1966CH20R1966CH20R1966CH201966DH161966DH16R1966DH16R1966DH16R1966DH16R1966DH20R1966DH20R1966DH20R1966DH20R1966DH20R1386CH40R1386CH40R1386CH45R1386CH45RX075FC24KRX075FC24LRX075FC24MR800CH16R800CH16R800CH16R800CH18R800CH18R800CH18R800CH14R800CH14R800CH14R1863CH24R1863CH24R1863CH24R1863CH24R1863CH24R1863CH24R1863CH28R1863CH28R1863CH28R1863CH28R1863CH28R1863DH24R1863DH24R1863DH24R1863DH24R1863DH24R1863DH24R1863DH28R1863DH28R1863DH28R1863DH28R1863DH28R1863DH28R1200CH10R1200CH10R1200CH10R610CH22R610CH22R610CH25R610CH25R610CH25R800CH14R800CH14R800CH14)