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Standard Resistor Values

Standard Resistor Values
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In this article you’ll find an interactive table in which you can find the standard resistor values, as used in electronics, and defined by the IEC.
You’ll find the values for the E6, E12, E24, E48, E96 and E192 Series (or “preferred resistor values”) in this table.

This can be useful when trying to find a matching resistor value when having done some [electronics] calculations and you’re looking for a particular value.




Standard Resistor Values

Not all thinkable values are available, in part caused by the fact that all resistors have some sorts of tolerance.
For example, a 100 Ohm resistor with a tolerance of 10% can actually have an value between 90 Ohm and 110 Ohm.

This is why the IEC (International Electrotechnical Commission) create the resistance and tolerance values into a norm, and are referred to as “preferred resistor values” or E-series (standard IEC 60063).

To help you (and myself) find the best matching resistor, I created a interactive table of the defined E-series values.
The most commonly used E-series is undoubtedly the E12 series. 

Tip: You can use our resistor calculator (this table will be visible there as well) to determine the value of a resistor or the needed color code for a give value.

In the table below; check the series you’d like to see. The red boxes indicate that the value exists in these series. The grey boxes indicate that a value exists in a series you didn’t select.
For example, when selecting just the E12 series, you’ll see right away which of the E12 series values also exist in the other series.
You can select multiple series at the same time.

Show Resistor E-Series:

Value

E192

E96

E48

E24

E12

E6

100

101

102

104

105

106

107

109

110

111

113

114

115

117

118

120

121

123

124

126

127

129

130

132

133

135

137

138

140

142

143

145

147

149

150

152

154

156

158

160

162

164

165

167

169

172

174

176

178

180

182

184

187

189

191

193

196

198

200

203

205

208

210

213

215

218

220

221

223

226

229

232

234

237

240

243

246

249

252

255

258

261

264

267

270

271

274

277

280

284

287

291

294

298

300

301

305

309

312

316

320

324

328

330

332

336

340

344

348

352

357

360

361

365

370

374

379

383

388

390

392

397

402

407

412

417

422

427

430

432

437

442

448

453

459

464

470

475

481

487

493

499

505

510

511

517

523

530

536

542

549

556

560

562

569

576

583

590

597

604

612

619

620

626

634

642

649

657

665

673

680

681

690

698

706

715

723

732

741

750

759

768

777

787

796

806

816

820

825

835

845

856

866

876

887

898

909

910

920

931

942

953

965

976

988


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