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国家标准规定了电阻的阻值按其精度分为两大系列,分别为E-24系列和E-96系列,E-24系列精度为5%,E-96系列为1%, 在这两种系列之外的电阻为非标电阻,较难采购。下面列出了常用的5％和1％精度电阻的标称值,供大家设计时参考。

??精度为5％的碳膜电阻,以欧姆为单位的标称值：

1.05.6331608203.9K20K100K510K2.7M
1.16.2361809104.3K22K110K560K3M
1.26.8392001K4.7K24K120K620K3.3M
1.37.5432201.1K5.1K27K130K680K3.6M
1.58.2472401.2K5.6K30K150K750K3.9M
1.69.1512701.3K6.2K33K160K820K4.3M
1.810563001.5K6.6K36K180K910K4.7M
2.011623301.6K7.5K39K200K1M5.1M
2.212683601.8K8.2K43K220K1.1M5.6M
2.413753902K9.1K47K240K1.2M6.2M
2.715824302.2K10K51K270K1.3M6.8M
3.016914702.4K11K56K300K1.5M7.5M
3.3181005102.7K12K62K330K1.6M8.2M
3.6201105603K13K68K360K1.8M9.1M
3.9221206203.2K15K75K390K2M10M
4.3241306803.3K16K82K430K2.2M15M
4.7271507503.6K18K91K470K2.4M22M
5.130

精度为1％的金属膜电阻,以欧姆为单位的标称值：

10331003321K3.32K10.5K34K107K357K
10.233.21023401.02K3.4K10.7K34.8K110K360K
10.5341053481.05K3.48K11K35.7K113K365K
10.734.81073501.07K3.57K11.3K36K115K374K
1135.71103571.1K3.6K11.5K36.5K118K383K
11.3361133601.13K3.65K11.8K37.4K120K390K
11.536.51153651.15K3.74K12K38.3K121K392K
11.837.41183741.18K3.83K12.1K39K124K402K
1238.31203831.2K3.9K12.4K39.2K127K412K
12.1391213901.21K3.92K12.7K40.2K130K422K
12.439.21243921.24K4.02K13K41.2K133K430K
12.740.21274021.27K4.12K13.3K42.2K137K432K
1341.21304121.3K4.22K13.7K43K140K442K
13.342.21334221.33K4.32K14K43.2K143K453K
13.7431374301.37K4.42K14.3K44.2K147K464K
1443.21404321.4K4.53K14.7K45.3K150K470K
14.344.21434421.43K4.64K15K46.4K154K475K
14.745.31474531.47K4.7K15.4K47K158K487K
1546.41504641.5K4.75K15.8K47.5K160K499K
15.4471544701.54K4.87K16K48.7K162K511K
15.847.51584751.58K4.99K16.2K49.9K165K523K
1648.71604871.6K5.1K16.5K51K169K536K
16.249.91624991.62K5.11K16.9K51.1K174K549K
16.5511655101.65K5.23K17.4K52.3K178K560K
16.951.11695111.69K5.36K17.8K53.6K180K562K
17.452.31745231.74K5.49K18K54.9K182K576K
17.853.61785361.78K5.6K18.2K56K187K590K
1854.91805491.8K5.62K18.7K56.2K191K604K
18.2561825601.82K5.76K19.1K57.6K196K619K
18.756.21875621.87K5.9K19.6K59K200K620K
19.157.61915651.91K6.04K20K60.4K205K634K
19.6591965781.96K6.19K20.5K61.9K210K649K
2060.42005902K6.2K21K62K215K665K
20.561.92056042.05K6.34K21.5K63.4K220K680K
21622106192.1K6.49K22K64.9K221K681K
21.563.42156202.15K6.65K22.1K66.5K226K698K
2264.92206342.2K6.8K22.6K68K232K715K
22.166.52216492.21K6.81K23.2K68.1K237K732K
22.6682266652.26K6.98K23.7K69.8K240K750K
23.268.12326802.32K7.15K24K71.5K243K768K
23.769.82376812.377.32K24.3K73.2K249K787K
2471.52406982.4K7.5K24.9K75K255K806K
24.373.22437152.43K7.68K25.5K76.8K261K820K
24.7752497322.49K7.87K26.1K78.7K267K825K
24.975.52557502.55K8.06K26.7K80.6K270K845K
25.576.82617682.61K8.2K27K82K274K866K
26.178.72677872.67K8.25K27.4K82.5K280K887K
26.780.62708062.7K8.45K28K84.5K287K909K
27822748202.74K8.66K28.7K86.6K294K910K
27.482.52808252.8K8.8K29.4K88.7K300K931K
2884.52878452.87K8.87K30K90.9K301K953K
28.786.62948662.94K9.09K30.1K91K309K976K
29.488.73008873.0K9.1K30.9K93.1K316K1.0M
3090.93019093.01K9.31K31.6K95.3K324K1.5M
30.1913099103.09K9.53K32.4K97.6K330K2.2M
30.993.13169313.16K9.76K33K100K332K
31.695.33249533.24K10K33.2K102K340K
32.497.63309763.3K10.2K33.6K105K348K