西玛可控硅晶闸管N680CH26 N1588NS260
下面分别介绍利用万用表判定GTO电极、检查GTO的触发能力和关断能力、估测关断增益βoff的方法。
1．判定GTO的电极
将万用表拨至R×1档，测量任意两脚间的电阻，仅当黑表笔接G极，红表笔接K极时，电阻呈低阻值，对其它情况电阻值均为无穷大。由此可迅速判定G、K极，剩下的就是A极。
2．检查触发能力
如图2(a)所示，首先将表Ⅰ的黑表笔接A极，红表笔接K极，电阻为无穷大；然后用黑表笔尖也同时接触G极，加上正向触发信号，表针向右偏转到低阻值即表明GTO已经导通；后脱开G极，只要GTO维持通态，就说明被测管具有触发能力。
3．检查关断能力
现采用双表法检查GTO的关断能力，如图2(b)所示，表Ⅰ的档位及接法保持不变。将表Ⅱ拨于R×10档，红表笔接G极，黑表笔接K极，施以负向触发信号，如果表Ⅰ的指针向左摆到无穷大位置，证明GTO具有关断能力。
4．估测关断增益βoff
进行到第3步时，先不接入表Ⅱ，记下在GTO导通时表Ⅰ的正向偏转格数n1；再接上表Ⅱ强迫GTO关断，记下表Ⅱ的正向偏转格数n2。根据读取电流法按下式估算关断增益：
βoff=IATM/IGM≈IAT/IG=K1n1/K2n2
式中K1—表Ⅰ在R×1档的电流比例系数；
K2—表Ⅱ在R×10档的电流比例系数。
N510CH180 N1547NS180
N510CH200 N1547NS200
N540CH12 N1718NS120
N540CH14 N1718NS140
N540CH16 N1718NS160
N540CH18 N1718NS180
N600CH12 N1802NS120
N600CH14 N1802NS140
N600CH16 N1802NS160
N610CH06 N2086NS060
N610CH08 N2086NS080
N610CH10 N2086NS100
N500CH30 N1159NC380
N500CH34 N1159NC420
N500CH38
N500CH42
N570CH30 N1314NC300
N570CH32 N1314NC320
N570CH34 N1314NC340
N570CH36 N1314NC360
N680CH20 N1588NS200
N680CH22 N1588NS220
N680CH24 N1588NS240
N680CH26 N1588NS260
N740CH12 N2046NS120
N740CH14 N2046NS140
N740CH16 N2046NS160
N560CH40 N1351VC400
N560CH42 N1351VC420
N560CH44 N1351VC440
N560CH45 N1351VC450
N630CH30 N1661VC300
N630CH32 N1661VC320
N630CH34 N1661VC340
N630CH36 N1661VC360
N640CH24 N1712VC300
N640CH28 N1712VC320
N640CH30 N1712VC360
N760CH18 N2293VC180
N760CH20 N2293VC200
N760CH22 N2293VC220
N990CH12 N2500VC120
N990CH14 N2500VC140
N990CH16 N2500VC160
N750CH40 N2172ZC400
N750CH42 N2172ZC420
N750CH45 N2172ZC450
N850CH30 N2418ZC300
N850CH32 N2418ZC320
N850CH34 N2418ZC340
N850CH36 N2418ZC360
N880CH24 N2543ZC240
N880CH26 N2543ZC260
N880CH28 N2543ZC280
N880CH30 N2543ZC300
N900CH20 N3012ZC200
N900CH24 N3012ZC240
N900CH26 N3012ZC260
N1400CH02 N3533ZC140
N1400CH04 N3533ZC160
N1400CH06 N3533ZC180
N1400CH08 N3533ZC200
N1400CH10
N1400CH12
N1400CH14
N1400CH16
N1400CH18
N1400CH20
N1600CH08 N4085ZC080
N1600CH10 N4085ZC100
N1600CH12 N4085ZC120
N1463CH36 N3476TC360
N1463CH38 N3476TC380
N1463CH40 N3476TC400
N1463CH42 N3476TC420
N1663CH30 N3839TC300
N1663CH32 N3839TC320
N1663CH35 N3839TC350
N1863CH20 N4400TC200
N1863CH24 N4400TC220
N1863CH26 N4400TC240
N1863CH28 N4400TC260
N1863CH22 N4400TC280
N1483CH36 N4151FC360
N1483CH38 N4151FC380
N1483CH40 N4151FC400
N1483CH42 N4151FC420
N1683CH29 N4803FC300
N1683CH30 N4803FC320
N1683CH32 N4803FC340
N1683CH35 N4803FC350
N1883CH20 N5177FC200
N1883CH22 N5177FC220
N1883CH24 N5177FC240
N1883CH26 N5177FC260
N1883CH28 N5177FC280
N1983CH18 N5946FC180
N1983CH20 N5946FC200
N1983CH22 N5946FC220
R210SH10 R0487YS10D
R210SH12 R0487YS12D
R0487YS10E R0487YS14D
R0487YS12E R0487YS10F
R0487YS14E R0487YS12F
R0487YS14F R0633YS12F
R185SH08 R0577YS08C
R185SH10 R0577YS10C
R185SH12 R0577YS12C
R0577YS08D R0577YS08E
R0577YS10D R0577YS10E
R0577YS12D R0577YS12E
R216SH08 R0633YS10D
R216SH10 R0633YS12D
R216SH12 R0633YS10E
R0633YS10F R0633YS12E
R181SH14 R0717LS14G
R181SH16 R0717LS16G
R0717LS14H R0717LS16H
R0717LS14J R0717LS16J
R181SH14 R0717LS14G
R181SH16 R0717LS16G
R0717LS14J R0717LS14H
R0717LS16J R0717LS16H
R175SH20 R0736LS20J
R175SH22 R0736LS22J
R175SH24 R0736LS24J
R175SH25 R0736LS25J
R0736LS20K R0736LS20L
N510CH200 N1547NS200
N540CH12 N1718NS120
N540CH14 N1718NS140
N540CH16 N1718NS160
N540CH18 N1718NS180
N600CH12 N1802NS120
N600CH14 N1802NS140
N600CH16 N1802NS160
N610CH06 N2086NS060
N610CH08 N2086NS080
N610CH10 N2086NS100
N500CH30 N1159NC380
N500CH34 N1159NC420
N500CH38
N500CH42
N570CH30 N1314NC300
N570CH32 N1314NC320
N570CH34 N1314NC340
N570CH36 N1314NC360
N680CH20 N1588NS200
N680CH22 N1588NS220
N680CH24 N1588NS240
N680CH26 N1588NS260
N740CH12 N2046NS120
N740CH14 N2046NS140
N740CH16 N2046NS160
N560CH40 N1351VC400
N560CH42 N1351VC420
N560CH44 N1351VC440
N560CH45 N1351VC450
N630CH30 N1661VC300
N630CH32 N1661VC320
N630CH34 N1661VC340
N630CH36 N1661VC360
N640CH24 N1712VC300
N640CH28 N1712VC320
N640CH30 N1712VC360
N760CH18 N2293VC180
N760CH20 N2293VC200
N760CH22 N2293VC220
N990CH12 N2500VC120
N990CH14 N2500VC140
N990CH16 N2500VC160
N750CH40 N2172ZC400
N750CH42 N2172ZC420
N750CH45 N2172ZC450
N850CH30 N2418ZC300
N850CH32 N2418ZC320
N850CH34 N2418ZC340
N850CH36 N2418ZC360
N880CH24 N2543ZC240
N880CH26 N2543ZC260
N880CH28 N2543ZC280
N880CH30 N2543ZC300
N900CH20 N3012ZC200
N900CH24 N3012ZC240
N900CH26 N3012ZC260
N1400CH02 N3533ZC140
N1400CH04 N3533ZC160
N1400CH06 N3533ZC180
N1400CH08 N3533ZC200
N1400CH10
N1400CH12
N1400CH14
N1400CH16
N1400CH18
N1400CH20
N1600CH08 N4085ZC080
N1600CH10 N4085ZC100
N1600CH12 N4085ZC120
N1463CH36 N3476TC360
N1463CH38 N3476TC380
N1463CH40 N3476TC400
N1463CH42 N3476TC420
N1663CH30 N3839TC300
N1663CH32 N3839TC320
N1663CH35 N3839TC350
N1863CH20 N4400TC200
N1863CH24 N4400TC220
N1863CH26 N4400TC240
N1863CH28 N4400TC260
N1863CH22 N4400TC280
N1483CH36 N4151FC360
N1483CH38 N4151FC380
N1483CH40 N4151FC400
N1483CH42 N4151FC420
N1683CH29 N4803FC300
N1683CH30 N4803FC320
N1683CH32 N4803FC340
N1683CH35 N4803FC350
N1883CH20 N5177FC200
N1883CH22 N5177FC220
N1883CH24 N5177FC240
N1883CH26 N5177FC260
N1883CH28 N5177FC280
N1983CH18 N5946FC180
N1983CH20 N5946FC200
N1983CH22 N5946FC220
R210SH10 R0487YS10D
R210SH12 R0487YS12D
R0487YS10E R0487YS14D
R0487YS12E R0487YS10F
R0487YS14E R0487YS12F
R0487YS14F R0633YS12F
R185SH08 R0577YS08C
R185SH10 R0577YS10C
R185SH12 R0577YS12C
R0577YS08D R0577YS08E
R0577YS10D R0577YS10E
R0577YS12D R0577YS12E
R216SH08 R0633YS10D
R216SH10 R0633YS12D
R216SH12 R0633YS10E
R0633YS10F R0633YS12E
R181SH14 R0717LS14G
R181SH16 R0717LS16G
R0717LS14H R0717LS16H
R0717LS14J R0717LS16J
R181SH14 R0717LS14G
R181SH16 R0717LS16G
R0717LS14J R0717LS14H
R0717LS16J R0717LS16H
R175SH20 R0736LS20J
R175SH22 R0736LS22J
R175SH24 R0736LS24J
R175SH25 R0736LS25J
R0736LS20K R0736LS20L
