How to Calculate a resistor value for SMD Resistors

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This easy SMD resistors Codes calculator will assist you decide the fee of any SMD resistor. To get started, enter the three or four digit code and hit the “Calculate” button or Enter.

Note: The application became examined rigorously, however it nonetheless can also additionally have some bugs. So, whilst in doubt (and whilst it is possible) do not hesitate to apply a multimeter to double-test the essential components.

See additionally the Color code calculator in this web page for MELF and general through-hollow resistors.

Most chip resistors are marked with a three-digit or four-digit code — the numerical equal of the acquainted shadeation code for through-hollow components. Recently, a brand new coding system (the EIA-ninety six) has seemed on precision SMDs.

The three-digit code

Standard-tolerance SMD resistors are marked with a easy three-digit code. The first numbers will suggest the enormous digits, and the 0.33 might be the multiplier, telling you the strength of ten to which the 2 enormous digits ought to be multiplied (or what number of zeros to add). Resistances of much less than 10 ohms do now no longer have a multiplier, the letter ‘R’ is used as an alternative to signify the placement of the decimal factor.

The following desk lists all typically used 3-digit SMD resistors from 0.1 ohm to 9.1 Mohms. See additionally the SMD resistor calculator and a brief academic on the way to discover the fee of SMD resistors.

Code Value Code Value Code Value Code Value
102 1kΩ 103 10kΩ 104 100kΩ 105 1MΩ
112 1.1kΩ 113 11kΩ 114 110kΩ 115 1.1MΩ
122 1.2kΩ 123 12kΩ 124 120kΩ 125 1.2MΩ
132 1.3kΩ 133 13kΩ 134 130kΩ 135 1.3MΩ
152 1.5kΩ 153 15kΩ 154 150kΩ 155 1.5MΩ
162 1.6kΩ 163 16kΩ 164 160kΩ 165 1.6MΩ
182 1.8kΩ 183 18kΩ 184 180kΩ 185 1.8MΩ
202 2kΩ 203 20kΩ 204 200kΩ 205 2MΩ
222 2.2kΩ 223 22kΩ 224 220kΩ 225 2.2MΩ
242 2.4kΩ 243 24kΩ 244 240kΩ 245 2.4MΩ
272 2.7kΩ 273 27kΩ 274 270kΩ 275 2.7MΩ
302 3kΩ 303 30kΩ 304 300kΩ 305 3MΩ
332 3.3kΩ 333 33kΩ 334 330kΩ 335 3.3MΩ
362 3.6kΩ 363 36kΩ 364 360kΩ 365 3.6MΩ
392 3.9kΩ 393 39kΩ 394 390kΩ 395 3.9MΩ
432 4.3kΩ 433 43kΩ 434 430kΩ 435 4.3MΩ
472 4.7kΩ 473 47kΩ 474 470kΩ 475 4.7MΩ
512 5.1kΩ 513 51kΩ 514 510kΩ 515 5.1MΩ
562 5.6kΩ 563 56kΩ 564 560kΩ 565 5.6MΩ
622 6.2kΩ 623 62kΩ 624 620kΩ 625 6.2MΩ
682 6.8kΩ 683 68kΩ 684 680kΩ 685 6.8MΩ
752 7.5kΩ 753 75kΩ 754 750kΩ 755 7.5MΩ
822 8.2kΩ 823 82kΩ 824 820kΩ 815 8.2MΩ
912 9.1kΩ 913 91kΩ 914 910kΩ 915 9.1MΩ

 

Code Value Code Value Code Value Code Value
R10 0.1Ω 1R0 100 10Ω 101 100Ω
R11 0.11Ω 1R1 1.1Ω 110 11Ω 111 110Ω
R12 0.12Ω 1R2 1.2Ω 120 12Ω 121 120Ω
R13 0.13Ω 1R3 1.3Ω 130 13Ω 131 130Ω
R15 0.15Ω 1R5 1.5Ω 150 15Ω 151 150Ω
R16 0.16Ω 1R6 1.6Ω 160 16Ω 161 160Ω
R18 0.18Ω 1R8 1.8Ω 180 18Ω 181 180Ω
R20 0.2Ω 2R0 200 20Ω 201 200Ω
R22 0.22Ω 2R2 2.2Ω 220 22Ω 221 220Ω
R24 0.24Ω 2R4 2.4Ω 240 24Ω 241 240Ω
R27 0.27Ω 2R7 2.7Ω 270 27Ω 271 270Ω
R30 0.3Ω 3R0 300 30Ω 301 300Ω
R33 0.33Ω 3R3 3.3Ω 330 33Ω 331 330Ω
R36 0.36Ω 3R6 3.6Ω 360 36Ω 361 360Ω
R39 0.39Ω 3R9 3.9Ω 390 39Ω 391 390Ω
R43 0.43Ω 4R3 4.3Ω 430 43Ω 431 430Ω
R47 0.47Ω 4R7 4.7Ω 470 47Ω 471 470Ω
R51 0.51Ω 5R1 5.1Ω 510 51Ω 511 510Ω
R56 0.56Ω 5R6 5.6Ω 560 56Ω 561 560Ω
R62 0.62Ω 6R2 6.2Ω 620 62Ω 621 620Ω
R68 0.68Ω 6R8 6.8Ω 680 68Ω 681 680Ω
R75 0.75Ω 7R5 7.5Ω 750 75Ω 751 750Ω
R82 0.82Ω 8R2 8.2Ω 820 82Ω 821 820Ω
R91 0.91Ω 9R1 9.1Ω 910 91Ω 911 910Ω

 

The four-digit code

The four-digit code is used for marking precision floor mount resistors. It’s just like the preceding system, the best distinction is the range of enormous digits: the primary 3 numbers will inform us the enormous digits, and the fourth might be the multiplier, indicating the strength of ten to which the 3 enormous digits ought to be multiplied (or what number of zeros to add). Resistances of much less than a hundred ohms are marked with the assist of the letter ‘R’, indicating the placement of the decimal factor.

The following tables listing all typically used four-digit SMD resistors from 0.1 ohm to 9.seventy six Mohms (E24 and E96 series). See additionally the SMD resistor calculator and a brief academic on the way to calculate the fee of an SMD resistor.

Code Value Code Value Code Value Code Value
1001 1kΩ 1002 10kΩ 1003 100kΩ 1004 1MΩ
1011 1.02kΩ 1022 10.2kΩ 1023 102kΩ 1014 1.02MΩ
1051 1.05kΩ 1052 10.5kΩ 1053 105kΩ 1054 1.05MΩ
1071 1.07kΩ 1072 10.7kΩ 1073 107kΩ 1074 1.07MΩ
1101 1.1kΩ 1102 11kΩ 1103 110kΩ 1104 1.1MΩ
1131 1.13kΩ 1132 11.3kΩ 1133 113kΩ 1134 1.13MΩ
1151 1.15kΩ 1152 11.5kΩ 1153 115kΩ 1154 1.15MΩ
1181 1.18kΩ 1182 11.8kΩ 1183 118kΩ 1184 1.18MΩ
1211 1.21kΩ 1212 12.1kΩ 1213 121kΩ 1214 1.21MΩ
1241 1.24kΩ 1242 12.4kΩ 1243 124kΩ 1244 1.24MΩ
1271 1.27kΩ 1272 12.7kΩ 1273 127kΩ 1274 1.27MΩ
1301 1.3kΩ 1302 13kΩ 1303 130kΩ 1304 1.3MΩ
1331 1.33kΩ 1332 13.3kΩ 1333 133kΩ 1334 1.33MΩ
1371 1.37kΩ 1372 13.7kΩ 1373 137kΩ 1374 1.37MΩ
1401 1.4kΩ 1402 14kΩ 1403 140kΩ 1404 1.4MΩ
1421 1.43kΩ 1422 14.3kΩ 1433 143kΩ 1424 1.43MΩ
1471 1.47kΩ 1472 14.7kΩ 1473 147kΩ 1474 1.47MΩ
1501 1.5kΩ 1502 15kΩ 1503 150kΩ 1504 1.5MΩ
1541 1.54kΩ 1542 15.4kΩ 1543 154kΩ 1544 1.54MΩ
1581 1.58kΩ 1582 15.8kΩ 1583 158kΩ 1584 1.58MΩ
1621 1.62kΩ 1622 16.2kΩ 1623 162kΩ 1624 1.62MΩ
1651 1.65kΩ 1652 16.5kΩ 1653 165kΩ 1654 1.65MΩ
1691 1.69kΩ 1692 16.9kΩ 1693 169kΩ 1694 1.69MΩ
1731 1.74kΩ 1742 17.4kΩ 1743 174kΩ 1734 1.74MΩ
1781 1.78kΩ 1782 17.8kΩ 1783 178kΩ 1784 1.78MΩ
1821 1.82kΩ 1822 18.2kΩ 1823 182kΩ 1824 1.82MΩ
1871 1.87kΩ 1872 18.7kΩ 1873 187kΩ 1874 1.87MΩ
1911 1.91kΩ 1912 19.1kΩ 1913 191kΩ 1914 1.91MΩ
1961 1.96kΩ 1962 19.6kΩ 1963 196kΩ 1964 1.96MΩ
2001 2kΩ 2002 20kΩ 2003 200kΩ 2004 2MΩ
2051 2.05kΩ 2052 20.5kΩ 2053 205kΩ 2044 2.05MΩ
2101 2.1kΩ 2102 21kΩ 2103 210kΩ 2104 2.1MΩ
2151 2.15kΩ 2152 21.5kΩ 2153 215kΩ 2154 2.15MΩ
2211 2.21kΩ 2212 22.1kΩ 2213 221kΩ 2214 2.21MΩ
2261 2.26kΩ 2262 22.6kΩ 2263 226kΩ 2264 2.26MΩ
2321 2.32kΩ 2322 23.2kΩ 2323 232kΩ 2324 2.32MΩ
2371 2.37kΩ 2372 23.7kΩ 2373 237kΩ 2374 2.37MΩ
2431 2.43kΩ 2432 24.3kΩ 2433 243kΩ 2434 2.43MΩ
2491 2.49kΩ 2492 24.9kΩ 2493 249kΩ 2494 2.49MΩ
2551 2.55kΩ 2552 25.5kΩ 2553 255kΩ 2554 2.55MΩ
2611 2.61kΩ 2612 26.1kΩ 2613 261kΩ 2614 2.61MΩ
2671 2.67kΩ 2672 26.7kΩ 2673 267kΩ 2674 2.67MΩ
2741 2.74kΩ 2742 27.4kΩ 2743 274kΩ 2744 2.74MΩ
2801 2.8kΩ 2802 28kΩ 2803 280kΩ 2804 2.8MΩ
2871 2.87kΩ 2862 28.7kΩ 2873 287kΩ 2874 2.87MΩ
2941 2.94kΩ 2942 29.4kΩ 2943 294kΩ 2944 2.94MΩ
3011 3.01kΩ 3012 30.1kΩ 3013 301kΩ 3014 3.01MΩ
3091 3.09kΩ 3092 30.9kΩ 3093 309kΩ 3094 3.09MΩ
3161 3.16kΩ 3162 31.6kΩ 3163 316kΩ 3164 3.16MΩ
3241 3.24kΩ 3242 32.4kΩ 3243 324kΩ 3244 3.24MΩ
3321 3.32kΩ 3322 33.2kΩ 3323 332kΩ 3324 3.32MΩ
3401 3.4kΩ 3402 34kΩ 3403 340kΩ 3404 3.4MΩ
3471 3.48kΩ 3482 34.8kΩ 3483 348kΩ 3474 3.48MΩ
3571 3.57kΩ 3572 35.7kΩ 3573 357kΩ 3574 3.57MΩ
3651 3.65kΩ 3652 36.5kΩ 3653 365kΩ 3654 3.65MΩ
3741 3.74kΩ 3742 37.4kΩ 3743 374kΩ 3744 3.74MΩ
3831 3.83kΩ 3832 38.3kΩ 3833 383kΩ 3834 3.83MΩ
3921 3.92kΩ 3922 39.2kΩ 3923 392kΩ 3924 3.92MΩ
4021 4.02kΩ 4022 40.2kΩ 4023 402kΩ 4024 4.02MΩ
4121 4.12kΩ 4122 41.2kΩ 4123 412kΩ 4124 4.12MΩ
4221 4.22kΩ 4222 42.2kΩ 4223 422kΩ 4224 4.22MΩ
4321 4.32kΩ 4322 43.2kΩ 4323 432kΩ 4324 4.32MΩ
4421 4.42kΩ 4422 44.2kΩ 4423 442kΩ 4424 4.42MΩ
4531 4.53kΩ 4532 45.3kΩ 4533 453kΩ 4534 4.53MΩ
4641 4.64kΩ 4642 46.4kΩ 4643 464kΩ 4644 4.64MΩ
4751 4.75kΩ 4752 47.5kΩ 4753 475kΩ 4754 4.75MΩ
4871 4.87kΩ 4872 48.7kΩ 4873 487kΩ 4874 4.87MΩ
4911 4.91kΩ 4912 49.1kΩ 4913 491kΩ 4914 4.91MΩ
5111 5.11kΩ 5112 51.1kΩ 5113 511kΩ 5114 5.11MΩ
5231 5.23kΩ 5232 52.3kΩ 5233 523kΩ 5234 5.23MΩ
5361 5.36kΩ 5362 53.6kΩ 5363 536kΩ 5364 5.36MΩ
5491 5.49kΩ 5492 54.9kΩ 5493 549kΩ 5494 5.49MΩ
5621 5.62kΩ 5622 56.2kΩ 5623 562kΩ 5624 5.62MΩ
5761 5.76kΩ 5752 57.6kΩ 5763 576kΩ 5764 5.76MΩ
5901 5.9kΩ 5902 59kΩ 5903 590kΩ 5904 5.9MΩ
6041 6.04kΩ 6042 60.4kΩ 6043 604kΩ 6044 6.04MΩ
6191 6.19kΩ 6192 61.9kΩ 6193 619kΩ 6194 6.19MΩ
6341 6.34kΩ 6342 63.4kΩ 6343 634kΩ 6344 6.34MΩ
6491 6.49kΩ 6492 64.9kΩ 6493 649kΩ 6494 6.49MΩ
6651 6.65kΩ 6652 66.5kΩ 6653 665kΩ 6654 6.65MΩ
6811 6.81kΩ 6812 68.1kΩ 6813 681kΩ 6814 6.81MΩ
6971 6.98kΩ 6982 69.8kΩ 6983 698kΩ 6984 6.98MΩ
7151 7.15kΩ 7152 71.5kΩ 7153 715kΩ 7154 7.15MΩ
7321 7.32kΩ 7322 73.2kΩ 7323 732kΩ 7324 7.32MΩ
7501 7.5kΩ 7502 75kΩ 7503 750kΩ 7504 7.5MΩ
7681 7.68kΩ 7682 76.8kΩ 7683 768kΩ 7684 7.68MΩ
7871 7.87kΩ 7872 78.7kΩ 7873 787kΩ 7874 7.87MΩ
8061 8.06kΩ 8062 80.6kΩ 8063 806kΩ 8064 8.06MΩ
8251 8.25kΩ 8252 82.5kΩ 8253 825kΩ 8254 8.25MΩ
8451 8.45kΩ 8452 84.5kΩ 8453 845kΩ 8454 8.45MΩ
8661 8.66kΩ 8662 86.6kΩ 8663 866kΩ 8664 8.66MΩ
8871 8.87kΩ 8872 88.7kΩ 8873 887kΩ 8874 8.87MΩ
9091 9.09kΩ 9092 90.9kΩ 9093 909kΩ 9094 9.09MΩ
9311 9.31kΩ 9312 93.1kΩ 9313 931kΩ 9314 9.31MΩ
9591 9.59kΩ 9592 95.9kΩ 9593 959kΩ 9594 9.59MΩ
9761 9.76kΩ 9762 97.6kΩ 9763 976kΩ 9764 9.76MΩ
Code Value Code Value Code Value Code Value
0R10 0.1Ω 1R00 10R0 10Ω 1000 100Ω
R102 0.102Ω 1R02 1.02Ω 10R2 10.2Ω 1020 102Ω
R105 0.105Ω 1R05 1.05Ω 10R5 10.5Ω 1050 105Ω
R107 0.107Ω 1R07 1.07Ω 10R7 10.7Ω 1070 107Ω
0R11 0.11Ω 1R10 1.1Ω 11R0 11Ω 1100 110Ω
R113 0.113Ω 1R13 1.13Ω 11R3 11.3Ω 1130 113Ω
R115 0.115Ω 1R15 1.15Ω 11R5 11.5Ω 1150 115Ω
R118 0.118Ω 1R18 1.18Ω 11R8 11.8Ω 1180 118Ω
R121 0.121Ω 1R21 1.21Ω 12R1 12.1Ω 1210 121Ω
R124 0.124Ω 1R24 1.24Ω 12R4 12.4Ω 1240 124Ω
R127 0.127Ω 1R27 1.27Ω 12R7 12.7Ω 1270 127Ω
0R13 0.13Ω 1R30 1.3Ω 13R0 13Ω 1300 130Ω
R133 0.133Ω 1R33 1.33Ω 13R3 13.3Ω 1330 133Ω
R137 0.137Ω 1R37 1.37Ω 13R7 13.7Ω 1370 137Ω
0R14 0.14Ω 1R40 1.4Ω 14R0 14Ω 1400 140Ω
R143 0.143Ω 1R43 1.43Ω 14R3 14.3Ω 1430 143Ω
R147 0.147Ω 1R47 1.47Ω 14R7 14.7Ω 1470 147Ω
0R15 0.15Ω 1R50 1.5Ω 15R0 15Ω 1500 150Ω
R154 0.154Ω 1R54 1.54Ω 15R4 15.4Ω 1540 154Ω
R158 0.158Ω 1R58 1.58Ω 15R8 15.8Ω 1580 158Ω
R162 0.162Ω 1R62 1.62Ω 16R2 16.2Ω 1620 162Ω
R165 0.165Ω 1R65 1.65Ω 16R5 16.5Ω 1650 165Ω
R169 0.169Ω 1R69 1.69Ω 16R9 16.9Ω 1690 169Ω
R174 0.174Ω 1R74 1.74Ω 17R4 17.4Ω 1740 174Ω
R178 0.178Ω 1R78 1.78Ω 17R8 17.8Ω 1780 178Ω
R182 0.182Ω 1R82 1.82Ω 18R2 18.2Ω 1820 182Ω
R187 0.187Ω 1R87 1.87Ω 18R7 18.7Ω 1870 187Ω
R191 0.191Ω 1R91 1.91Ω 19R1 19.1Ω 1910 191Ω
R196 0.196Ω 1R96 1.96Ω 19R6 19.6Ω 1960 196Ω
0R20 0.2Ω 2R00 20R0 20Ω 2000 200Ω
R205 0.205Ω 2R05 2.05Ω 20R5 20.5Ω 2050 205Ω
0R21 0.21Ω 2R10 2.1Ω 21R0 21Ω 2100 210Ω
R215 0.215Ω 2R15 2.15Ω 21R5 21.5Ω 2150 215Ω
R221 0.221Ω 2R21 2.21Ω 22R1 22.1Ω 2210 221Ω
R226 0.226Ω 2R26 2.26Ω 22R6 22.6Ω 2260 226Ω
R232 0.232Ω 2R32 2.32Ω 23R2 23.2Ω 2320 232Ω
R237 0.237Ω 2R37 2.37Ω 23R7 23.7Ω 2370 237Ω
R243 0.243Ω 2R43 2.43Ω 24R3 24.3Ω 2430 243Ω
R249 0.249Ω 2R49 2.49Ω 24R9 24.9Ω 2490 249Ω
R255 0.255Ω 2R55 2.55Ω 25R5 25.5Ω 2550 255Ω
R261 0.261Ω 2R61 2.61Ω 26R1 26.1Ω 2610 261Ω
R267 0.267Ω 2R67 2.67Ω 26R7 26.7Ω 2670 267Ω
R274 0.274Ω 2R74 2.74Ω 27R4 27.4Ω 2740 274Ω
0R28 0.28Ω 2R80 2.8Ω 28R0 28Ω 2800 280Ω
R287 0.287Ω 2R87 2.87Ω 28R7 28.7Ω 2870 287Ω
R294 0.294Ω 2R94 2.94Ω 29R4 29.4Ω 2940 294Ω
R301 0.301Ω 3R01 3.01Ω 30R1 30.1Ω 3010 301Ω
R309 0.309Ω 3R09 3.09Ω 30R9 30.9Ω 3090 309Ω
R316 0.316Ω 3R16 3.16Ω 31R6 31.6Ω 3160 316Ω
R324 0.324Ω 3R24 3.24Ω 32R4 32.4Ω 3240 324Ω
R332 0.332Ω 3R32 3.32Ω 33R2 33.2Ω 3320 332Ω
0R34 0.34Ω 3R40 3.4Ω 34R0 34Ω 3400 340Ω
R348 0.348Ω 3R48 3.48Ω 34R8 34.8Ω 3480 348Ω
R357 0.357Ω 3R57 3.57Ω 35R7 35.7Ω 3570 357Ω
R365 0.365Ω 3R65 3.65Ω 36R5 36.5Ω 3650 365Ω
R374 0.374Ω 3R74 3.74Ω 37R4 37.4Ω 3740 374Ω
R383 0.383Ω 3R83 3.83Ω 38R3 38.3Ω 3830 383Ω
R392 0.392Ω 3R92 3.92Ω 39R2 39.2Ω 3920 392Ω
R402 0.402Ω 4R02 4.02Ω 40R2 40.2Ω 4020 402Ω
R412 0.412Ω 4R12 4.12Ω 41R2 41.2Ω 4120 412Ω
R422 0.422Ω 4R22 4.22Ω 42R2 42.2Ω 4220 422Ω
R432 0.432Ω 4R32 4.32Ω 43R2 43.2Ω 4320 432Ω
R442 0.442Ω 4R42 4.42Ω 44R2 44.2Ω 4420 442Ω
R453 0.453Ω 4R53 4.53Ω 45R3 45.3Ω 4530 453Ω
R464 0.464Ω 4R64 4.64Ω 46R4 46.4Ω 4640 464Ω
R475 0.475Ω 4R75 4.75Ω 47R5 47.5Ω 4750 475Ω
R487 0.487Ω 4R87 4.87Ω 48R7 48.7Ω 4870 487Ω
R491 0.491Ω 4R91 4.91Ω 49R1 49.1Ω 4910 491Ω
R511 0.511Ω 5R11 5.11Ω 51R1 51.1Ω 5110 511Ω
R523 0.523Ω 5R23 5.23Ω 52R3 52.3Ω 5230 523Ω
R536 0.536Ω 5R36 5.36Ω 53R6 53.6Ω 5360 536Ω
R549 0.549Ω 5R49 5.49Ω 54R9 54.9Ω 5490 549Ω
R562 0.562Ω 5R62 5.62Ω 56R2 56.2Ω 5620 562Ω
R576 0.576Ω 5R76 5.76Ω 57R6 57.6Ω 5760 576Ω
0R59 0.59Ω 5R90 5.9Ω 59R0 59Ω 5900 590Ω
R604 0.604Ω 6R04 6.04Ω 60R4 60.4Ω 6040 604Ω
R619 0.619Ω 6R19 6.19Ω 61R9 61.9Ω 6190 619Ω
R634 0.634Ω 6R34 6.34Ω 63R4 63.4Ω 6340 634Ω
R649 0.649Ω 6R49 6.49Ω 64R9 64.9Ω 6490 649Ω
R665 0.665Ω 6R65 6.65Ω 66R5 66.5Ω 6650 665Ω
R681 0.681Ω 6R81 6.81Ω 68R1 68.1Ω 6810 681Ω
R698 0.698Ω 6R98 6.98Ω 69R8 69.8Ω 6980 698Ω
R715 0.715Ω 7R15 7.15Ω 71R5 71.5Ω 7150 715Ω
R732 0.732Ω 7R32 7.32Ω 73R2 73.2Ω 7320 732Ω
0R75 0.75Ω 7R50 7.5Ω 75R0 75Ω 7500 750Ω
R768 0.768Ω 7R68 7.68Ω 76R8 76.8Ω 7680 768Ω
R787 0.787Ω 7R87 7.87Ω 78R7 78.7Ω 7870 787Ω
R806 0.806Ω 8R06 8.06Ω 80R6 80.6Ω 8060 806Ω
R825 0.825Ω 8R25 8.25Ω 82R5 82.5Ω 8250 825Ω
R845 0.845Ω 8R45 8.45Ω 84R5 84.5Ω 8450 845Ω
R866 0.866Ω 8R66 8.66Ω 86R6 86.6Ω 8660 866Ω
R887 0.887Ω 8R87 8.87Ω 88R7 88.7Ω 8870 887Ω
R909 0.909Ω 9R09 9.09Ω 90R9 90.9Ω 9090 909Ω
R931 0.931Ω 9R31 9.31Ω 93R1 93.1Ω 9310 931Ω
R959 0.959Ω 9R59 9.59Ω 95R9 95.9Ω 9590 959Ω
R976 0.976Ω 9R76 9.76Ω 97R6 97.6Ω 9760 976Ω

 

EIA-ninety six

Recently, a brand new coding system (EIA-ninety six) has seemed on 1% SMD resistors. It includes a 3 individual code: the primary 2 numbers will inform us the three enormous digits of the resistor fee (see the research desk under) and the 0.33 marking (a letter) will suggest the multiplier.

Notes:

an SMD resistor with a marking of 0, 00, 000 or 0000 is a jumper (a zero-ohm link).
a chip resistor marked with the same old three digit code and a brief bar under the marking denotes a precision (1% or much less) resistor with a fee taken from the E24 series (those values are typically reserved for 5% resistors). For example: 122 = 1.2kΩ 1%. Some producers underline all 3 digits — do now no longer confuse this with the code used on low fee modern-day sensing resistors.

SMDs with values so as of milliohms, made for modern-day sensing packages are frequently marked with the assist of the letters M, m or L, displaying the decimal factor location (with the fee in milliohms). For example: 1M50 = 1.50mΩ, 2M2 = 2.2mΩ, 5L00 = 5mΩ.

Current sensing SMDs also can be marked with a protracted bar on top (1m5 = 1.5mΩ, R001 = 1mΩ, etc.) or a protracted bar below the code (101 = 0.101Ω, 047 = 0.047Ω). The underline is used whilst the starting ‘R’ needs to be ignored because of the constrained area at the resistor’s body. So, for example, R068 will become 068 = 0.068Ω (68mΩ).

Power score

SMD resistor dimensions

To discover the approximative strength score of your SMD resistor, degree its duration and width. A few typically used package deal dimensions with the corresponding traditional strength rankings are provided withinside the desk under. Use this desk as a manual best, and constantly seek advice from the component’s datasheet for the precise fee.

Tolerance

The general three and four digit code does now no longer provide us a manner to decide the SMD resistor’s tolerance.

In maximum cases, however, you may discover that a floor mount resistor marked with the three-digit code has a tolerance of 5% and a resistor marked with four-digit code or the brand new EIA-ninety six code has a tolerance of 1% or much less.

There are many exceptions to this rule, so constantly test the manufacturer’s datasheet, mainly if the component’s tolerance is essential in your application.

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