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1、实践基础附录A 基本元器件图形符号(返回)名称推荐图形其他图形名称推荐图形其他图形电阻器熔断器电位器电池电容器二极管预调电容器npn型三极管可变电容器pnp型三极管极性(电解)电容器结型场效应管电感器耗尽型场效应管晶体增强型场效应管开关继电器手动(按键)开关电铃双位开关电机信号灯传声器接机壳(底板)喇叭附录B 常用小功率整流二极管型号(返回)VRM(V)IP=1AVPM1.0 V，TJM=175IP=1.5AVPM1.0 V，TJM=175IP=2AIP=3AVPM1.2 V，TJM=170501N40011N5391PS2011N54001001N40021N5392PS2021N54012
2、001N40031N5393PS2031N54023001N53941N54034001N40041N5395PS2051N54045001N53961N54056001N40051N5397PS2071N54068001N40061N5398PS2081N540710001N40071N5399PS2091N5408VRM最高反向工作电压，IP额定整流电流，VPM最大正向压降，TJM最高结温 附录C 两种开关二极管参数(返回)VRM(V)VBR(V)VPM(V)IPM(mA)Id(mA)trr(ms)TJM()C0(pF) PM (mW)1N414875100 l45015041504500
3、1N444875100 l45015041505500VRM最高反向工作电压，VBR反向击穿电压， VRM最高反向工作电压， IPM最大正向电流，Id平均整流电流，trr反向恢复时间，TJM最高结温，C0零偏压结电容，PM最大功耗附录D 小封装发光二极管典型参数(返回)颜色材料最大正向电流一般工作电流正向压降反向电流红GaP25 mA10 mA2.2 V10A红GaAsP25 mA10 mA2.0 V10A超亮红25 mA10 mA1.8 V10A橙GaAsP25 mA10 mA2.0 V10A黄GaAsP25 mA10 mA2.0 V10A绿GaP25 mA10 mA2.2 V10A附录E
4、1N系列稳压二极管稳压值及对应型号(返回) 稳压0.4W0.5W1W1N57对应型号1N59对应型号1N52对应型号1N472.4V1N59852CW50,2GW52212.7V1N59862CW50,2CW52233V1N59872CW51,2CW52253.3V1N59882CW51,2CW52261N47283.6V1N59892GW51,2CW52271N47293.9V1N59902CW52,2CW52281N47304.3V1N59912CW52,2CW52291N47314.7V1N59922CW53,2CW52301N47325.1V1N59932CW53,2CW52311N4
5、7335.6V1N57302CW7521N59942CW53,2CW52321N47346.2V1N57312CW753,RD6.2EB1N59952CW54,2CW52341N47356.8V1N57322CW754,2CW9571N59962CW54,2CW52351N47367.5V1N57332CW755,2CW9581N59972CW55,2CW52361N52362CW105,2CW52361N47378.2V1N57342CW756,2CW9591N59982CW55,2CW52371N52372CW106,2CW52371N47389.1V1N57352CW757,2CW960
6、1N59992CW57,2CW52391N52392CW107,2CW52391N473910V1N57362CW758,2CW96l1N60002CW58,2CW52401N52402CW108,2CW52401N474011V1N57372CW9621N60012CW59,2CW52411N52412CW109,2CW52411N474112V1N57382CW7592,CW9631N60022CW60,2CW52421N52422CW11O,2CW52421N474213V1N57392CW760,2CW964,HZ-12C1N60032CW61,2CW52431N52432CW111,
7、2CW52431N474315V1N57402CW9651N60042CW62,2CW52451N52452CW112,2CW52451N474416V1N57412CW9661N60052GW62,2CW52461N52462CW112,2CW52461N474518V1N57422CW9671N60062CW63,2CW52481N52482CW113,2CW52481N474620V1N57432CW9681N60072CW64,2CWS2SO1N52502CW114,2CW52501N474722V1N57442GW9691N60082CW65,2CW52511N52512CW115,
8、2CW52511N474824V1N57452CW970,EQA02-25A1N60092CW66,2CW52521N52522CW115,2CW52521N474927V1N57462CW971,HZS30E1N60102CW67,2CW52541N52542CW1l7,2CW52541N475030V1N57472CW972,1/2W301N60112CW68,2CW52561N52562CW119,2CW52561N475133V1N57482CW9731N60122CW69,2CW52571N52572CW120,2CW52571N4752附录F 常用小功率三极管特性(返回)型号类型反
9、压Vceo电流Icm功率Pcm特征频率或相近管型8050SI-NPN25V1.51W8550SI-PNP25V1.51W9011SI-NPN30V30mA400mW150MHZ，3DG6，3DG89012SI-PNP20V0.5625mW150MHZ，3CG2，3CG219013SI-NPN20V0.5625mW150MHZ，3DG129014SI-NPN45V0.1450mW100MHZ，3DG89015SI-PNP45V0.1450mW150MHZ，3CG219016SI-NPN20V25mA400mW620MHZ，3DG6，3DG89018SI-NPN15V50mA400mA1G，3DG
10、802N3904SI-PNP60V0.2MMBT3904，2N2220，3DK40B2N3905SI-PNP40V0.2MMBT3905，2N2906，3CK3F2N3906SI-PNP40V0.2MMBT3906，2N2906，3CK3F2N5401SI-PNP160V0.6625mW2N5551SI-NPN160V0.6625mW2SA1013SI-PNP160V10.9WKSA1013，BF4912SA1015GRSI-PNP50V0.150.4WHA1015，BC177，CG6732SB562SI-PNP25V10.9WBC328，BC298，BC7282SB647SI-PNP120V
11、10.9WBF491，3CA3F2SB772SI-PNP40V310WBD786，3CA5A2SC1213SI-NPN35V0.50.4WBC337，3DK4A2SC1623L6SI-NPN50V0.1300MHz2SC1815SI-NPN60V0.150.4WBC184，BC384，DG18152SC1959SI-NPN35V0.50.5WBC338，BC378，3DA2060，3DG19592SC3356R25SI-NPN20V0.10.2Wfr=7GHz2SD667SI-NPN120V10.9WBF391，3DK104E2SD965SI-NPN40V50.75WA42SI-NPN35V0.50.4WMJE13003SI-NPN400V1.520WKSE13003TIP102NPN100V8A2W附录G 分贝与功率比、电压或电流比的关系(返回)分贝功率比电压或电流比增益衰减增益衰减0.01.0001.00001.0001.00000.21.0470.95501.0230.97720.41.0960.91201.0470.95500.61.1480.87101.0720.93330.81.2020.83181.0960.91201.01.
