电容电阻入门必记.doc

陶 瓷 独 石 电 容 器静电容量用三个数字表示，单位为皮法（PF）第一和第二个数字为有效数字，第三个数字表示前两位以后零的个数，如果有小数点，它用大写的”R”表示，此时所有数字均为有效数字。1PF=0.001NF (PF-NF-UF 为千进制)，R50=0.5PF 1R0=1.0PF10PF=0.01NF100PF=0.1NF =1011000PF=1NF =0.001UF=10210000PF=10NF=0.01UF=103100000PF=100NF=0.1UF=1041000000PF=1000NF=1UF=10510000000PF=10000NF=10UF=106R代表小数点 1R0=1 R10=0.1 电容的型号必须具备几点才完整： 体积 ，容量 ，误差 ，材料电容一般常用体积为： 0201 ，0402 ，0603 ，0805 ，1206 ，1210 ，1808 ，1812 ，2220 ，2225一般常用误差为： Z档 +80-20% （一般为 Y5V材料） ，M档 +/-20% （一般国产为Y5V材料，进口为X5R材料） ， K档 +/-10% （一般105K以下为X7R材料，以上X7R X5R都有） ，J档 +/-5% （NPO材料） ，D 档 +/-0.5PF （NPO材料） ，C档 +/- 0.25PF （NPO材料） ，B档 +/-0.1PF（NPO材料） 一般电容的价格存在几个规律：同样的容量，误差越小价格越高！同样的容量误差，体积越大价格越高（0201 除外） ！同样的误差材料，容量越大价格越高！电 阻 器电阻值一般5% 用三个数字表示，单位为欧姆（R）第一和第二个数字为有效数字，第三个数字表示前两位以后零的个数，如果有小数点，它直接用大写的”R”表示，此时所有数字均为有效数字。1% 的精密电阻与5% 电阻的区别是一般用四位数表示，第一和第二第三个数字为有效数字，第四个数字表示前三位以后零的个数，但0603 体积的电阻由于本体大小的原因打不下四个字码，故用代码表示，祥见代码表。1MR = 1000KR ，1KR = 1000R (R-KR-MR 为千进制，为方便大家平时简称K ，M)5% 表示法：R50 = 0.5R 1R0 = 1.0R 10R / 100 = 10R 101 = 100R222 = 2200R = 2.2K 473 = 47000R = 47K564 = 560000R = 560K 685 = 6800000R = 6800K = 6.8M756 = 75000000 = 75000K = 75M1% 表示法： 3R32 = 3.32R 10R2 =10.2R1210 = 121R 2211 = 2210R = 2.21K3322 = 33200R = 33.2K 4753 = 475000R = 475K5624 = 5620000R = 5620K = 5.62M 6815 = 68100000R = 68100K = 68.1M 电阻的型号必须具备几点才完整： 体积 ，阻值 ，误差 电租一般常用体积为： 0201 ，0402 ，0603 ，0805 ，1206 ，1210 ，1812 ，2010 ，2512一般常用误差为： J档 +/-5% ，F 档 +/- 1% 一般电阻5% 的常规阻值在1R-10M之间，这一段之间的价格为一个系列的所有型号都一样价格，如 ，所有的 0402 5% 10R1M 的价格 都是 0.002 ，所有1210 5% 1R10M 的价格都是 0.019。 而1% 的常规阻值在10R-1M之间 ，也是一个系列的所有型号都一样价格，如 ，所有的 0402 1% 10R1M 的价格 都是 0.0035 其他的价格具体参考系统各体积电阻型号列表(灰色区域属于5%的型号)(灰白区域属于1%的型号)0R1R3.3R10R33R100R330R1K3.3K1.02R3.32R10.2R33.2R102R332R1.02K3.32K1.05R3.4R10.5R34R105R340R1.05K3.4K1.07R3.48R10.7R34.8R107R348R1.07K3.48K1.1R3.57R11R35.7R110R357R1.1K3.57K1.13R3.6R11.3R36R113R360R1.13K3.6K1.15R3.65R11.5R36.5R115R365R1.15K3.65K1.18R3.74R11.8R37.4R118R374R1.18K3.74K1.2R3.83R12R38.3R120R383R1.2K3.83K1.21R3.9R12.1R39R121R390R1.21K3.9K1.24R3.92R12.4R39.2R124R392R1.24K3.92K1.27R4.02R12.7R40.2R127R402R1.27K4.02K1.3R4.12R13R41.2R130R412R1.3K4.12K1.33R4.22R13.3R42.2R133R422R1.33K4.22K1.37R4.3R13.7R43R137R430R1.37K4.3K1.4R4.32R14R43.2R140R432R1.4K4.32K1.43R4.42R14.3R44.2R143R442R1.43K4.42K1.47R4.53R14.7R45.3R147R453R1.47K4.53K1.5R4.64R15R46.4R150R464R1.5K4.64K1.54R4.7R15.4R47R154R470R1.54K4.7K1.58R4.75R15.8R47.5R158R475R1.58K4.75K1.6R4.87R16R48.7R160R487R1.6K4.87K1.62R4.99R16.2R49.9R162R499R1.62K4.99K1.65R5.1R16.5R51R165R510R1.65K5.1K1.69R5.11R16.9R51.1R169R511R1.69K5.11K1.74R5.23R17.4R52.3R174R523R1.74K5.23K1.78R5.36R17.8R53.6R178R536R1.78K5.36K1.8R5.49R18R54.9R180R549R1.8K5.49K1.82R5.6R18.2R56R182R560R1.82K5.6K1.87R5.62R18.7R56.2R187R562R1.87K5.62K1.91R5.76R19.1R57.6R191R576R1.91K5.76K1.96R5.9R19.6R59R196R590R1.96K5.9K2R6.04R20R60.4R200R604R2K6.04K2.05R6.19R20.5R61.9R205R619R2.05K6.19K2.1R6.2R21R62R210R620R2.1K6.2K2.15R6.34R21.5R63.4R215R634R2.15K6.34K2.2R6.49R22R64.9R220R649R2.2K6.49K2.21R6.65R22.1R66.5R221R665R2.21K6.65K2.26R6.8R22.6R68R226R680R2.26K6.8K2.32R6.81R23.2R68.1R232R681R2.32K6.81K2.37R6.98R23.7R69.8R237R698R2.37K6.98K2.4R7.15R24R71.5R240R715R2.4K7.15K2.43R7.32R24.3R73.2R243R732R2.43K7.32K2.49R7.5R24.9R75R249R750R2.49K7.5K2.55R7.68R25.5R76.8R255R768R2.55K7.68K2.61R7.87R26.1R78.7R261R787R2.61K7.87K2.67R8.06R26.7R80.6R267R806R2.67K8.06K2.7R8.2R27R82R270R820R2.7K8.2K2.74R8.25R27.4R82.5R274R825R2.74K8.25K2.8R8.45R28R84.5R280R845R2.8K8.45K2.87R8.66R28.7R86.6R287R866R2.87K8.66K2.94R8.87R29.4R88.7R294R887R2.94K8.87K3R9.09R30R90.9R300R909R3K9.09K3.01R9.1R30.1R91R301R910R3.01K9.1K3.09R9.31R30.9R93.1R309R931R3.09K9.31K3.16R9.53R31.6R95.3R316R953R3.16K9.53K3.24R9.76R32.4R97.6R324R976R3.24K9.76K10K33K100K330K1M3.3M10M33M10.2K33.2K102K332K1.02M3.32M10.2M33.2M10.5K34K105K340K1.05M3.4M10.5M34M10.7K34.8K107K348K1.07M3.48M10.7M34.8M11K35.7K110K357K1.1M3.57M11M35.7M11.3K36K113K360K1.13M3.6M11.3M36M11.5K36.5K115K365K1.15M3.65M11.5M36.5M11.8K37.4K118K374K1.18M3.74M11.8M37.5M12K38.3K120K383K1.2M3.83M12M38.3M12.1K39K121K390K1.21M3.9M12.1M39M12.4K39.2K124K392K1.24M3.92M12.4M39.2M12.7K40.2K127K402K1.27M4.02M12.7M40.2M13K41.2K130K412K1.3M4.12M13M41.2M13.3K42.2K133K422K1.33M4.22M13.3M42.2M13.7K43K137K430K1.37M4.3M13.7M43M14K43.2K140K432K1.4M4.32M14M43.2M14.3K44.2K143K442K1.43M4.42M14.3M44.2M14.7K45.3K147K453K1.47M4.53M14.7M45.3M15K46.4K150K464K1.5M4.64M15M46.4M15.4K47K154K470K1.54M4.7M15.4M47M15.8K47.5K158K475K1.58M4.75M15.8M47.5M16K48.7K160K487K1.6M4.87M16M48.7M16.2K49.9K162K499K1.62M4.99M16.2M49.9M16.5K51K165K510K1.65M5.1M16.5M51M16.9K51.1K169K511K1.69M5.11M16.9M51.1M17.4K52.3K174K523K1.74M5.23M17.4M52.3M17.8K53.6K178K536K1.78M5.36M17.8M53.6M18K54.9K180K549K1.8M5.49M18M54.9M18.2K56K182K560K1.82M5.6M18.2M56M18.7K56.2K187K562K1.87M5.62M18.7M56.2M19.1K57.6K191K576K1.91M5.76M19.1M57.6M19.6K59K196K590K1.96M5.9M19.6M59M20K60.4K200K604K2M6.04M20M60.4M20.5K61.9K205K619K2.05M6.19M20.5M61.9M21K62K210K620K2.1M6.2M21M62M21.5K63.4K215K634K2.15M6.34M21.5M63.4M22K64.9K220K649K2.2M6.49M22M64.9M22.1K66.5K221K665K2.21M6.65M22.1M66.5M22.6K68K226K680K2.26M6.8M22.6M68M23.2K68.1K232K681K2.32M6.81M23.2M68.1M23.7K69.8K237K698K2.37M6.98M23.7M69.8M24K71.5K240K715K2.4M7.15M24M71.5M24.3K73.2K243K732K2.43M7.32M24.3M73.2M24.9K75K249K750K2.49M7.5M24.9M75M25.5K76.8K255K768K2.55M7.68M25.5M76.8M26.1K78.7K261K787K2.61M7.87M26.1M78.7M26.7K80.6K267K806K2.67M8.06M26.7M80.6M27K82K270K820K2.7M8.2M27M82M27.4K82.5K274K825K2.74M8.25M27.4M82.5M28K84.5K280K845K2.8M8.45M28M84.5M28.7K86.6K287K866K2.87M8.66M28.7M86.6M29.4K88.7K294K887K2.94M8.87M29.4M88.7M30K90.9K300K909K3M9.09M30M90.9M30.1K91K301K910K3.01M9.1M30.1M91M30.9K93.1K309K931K3.09M9.31M30.9M93.1M31.6K95.3K316K953K3.16M9.53M31.6M95.3M32.4K97.6K324K976K3.24M9.76M32.4M97.6M精密电阻代码表CodeValueCodeValueCodeValueCodeValueCodeValueCodeValue0110017147332154931665464816810210218150342215032466475