STANDARD E12 COMPONENT

680 Ohm Resistor Color Code (680 Ω)

A 680 ohm (680 Ω) resistor is a standard E12/E24 decade component commonly selected for LED drive circuits at 12V to 15V, transistor bias loops, and video signal terminations.

Quick Answer • Color Bands BreakdownIEC 60062 Standard

4-BAND (±5%)Standard Carbon/Metal Film

Blue(1st Digit (6))

Grey(2nd Digit (8))

Brown(Multiplier (×10))

Gold(Tolerance (±5%))

5-BAND (±1%)Precision Metal Film

Blue(1st Digit (6))

Grey(2nd Digit (8))

Black(3rd Digit (0))

Black(Multiplier (×1))

Brown(Tolerance (±1%))

Customize in Live Calculator BelowTolerance: ±5% (Gold band) or ±1% (Brown band)

Technical Specifications

Nominal Value: 680 Ω (680 Ohm)
Standard Series: E12, E24, E48, E96
Acceptable Measurement Range: 646 Ω to 714 Ω (at ±5%) | 673.2 Ω to 686.8 Ω (at ±1%)
Typical Power: 1/4 Watt (0.25 W) axial
Max Working Voltage: 250V (standard axial)

SMD Chip Markings

6813-Digit SMD (68 × 10¹ = 680 Ω)

68004-Digit Precision SMD (680 × 10⁰ = 680 Ω)

82AEIA-96 1% SMD (82 = 681, A = ×1)

Common Real-World Circuit Applications

White and Blue high-brightness LED ballast on 12V supplies (~15mA current)Audio line receiver impedance matchingCurrent-limiting resistor for logic buffer drivers

Interactive Tool

Resistor Color Code Calculator

Select band count and click colors below to calculate resistance and tolerance.

Resistor Band SystemShortcuts: 3 · 4 · 5 · 6

4-Band Carbon Film ResistorReading direction: Left to Right

Resistance ValueStandard E12 / E24

1kΩ±5%

Guaranteed Range:±5%

950 Ω↔1.05 kΩ

Standard SeriesE12, E24

Temp. CoefficientN/A (6-band only)

Color Band Sequence:

Common Commercial ValuesClick to load

Select Band Colors

Click any swatch to change value

Live Synced

1st Band1st Digit

2nd Band2nd Digit

3rd BandMultiplier

4th BandTolerance

Inverse Solver

Reverse Resistor Color Code Lookup

Enter resistance value in Ohms (Ω) to determine the exact color bands.

Enter Target Resistance

Live Validation

Resistance ValueExamples: 4.7k, 220, 1M, 0.47

Ohms

✓Recognized: 4.7 kΩ (4,700 Ω)

Band Count

Tolerance

Quick Presets:Click to test

Calculated Color BandsStandard E24

Exact Resistance:4.7 kΩ±5%

Color Bands Sequence (Left to Right):

Band Breakdown:

Want to tweak these bands?

FREQUENTLY ASKED QUESTIONS

Common Questions About 680 Ohm Resistor Color Code (680 Ω)

What are the color stripes on a 680 ohm resistor?▼

For a 4-band 680 ohm resistor (±5%), the colors are Blue (6), Grey (8), Brown (×10), and Gold (±5%). 68 × 10 = 680 Ω. For a 5-band 1% resistor, they are Blue, Grey, Black, Black, and Brown.

IEC 60062 Standard Table

Complete Resistor Color Code Chart

View the full 12-color lookup matrix covering significant figures 0–9, multipliers from 0.01 to 1G, and tolerance bands from ±0.05% to ±20%. Includes searchable values and instant CSV export.

Explore Full Color Chart→

Engineering Guide

How to Read & Calculate Resistor Bands

Learn step-by-step reading rules, standard E-series decade values (E12, E24, E96), memory mnemonics, and surface-mount (SMD) 3-digit and EIA-96 code conversion formulas.

Read Full Engineering Guide→

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