If you are holding a resistor with five colored bands, you are looking at a precision component. The direct answer for reading a resistor color code 5 band chart is this: the first three bands represent significant digits, the fourth band is the multiplier, and the fifth band indicates tolerance. You always read the bands starting from the end opposite the tolerance band (which is typically gold or brown and spaced slightly further apart or physically thicker).
While 4-band resistors (2 digits, 1 multiplier, 1 tolerance) are fine for basic pull-ups and LED current limiting, 5-band resistors give you three significant digits. This allows for precise values like 4.72 kΩ instead of rounding to 4.7 kΩ. Below is the complete reference data, quick-lookup values for the most common bench components, and a decision framework to ensure you pick the right part for your specific circuit constraints.
How to Read the 5-Band Resistor Color Code Chart
Before jumping into the data, you need to know how to physically orient the component and which columns apply to your installation. According to the IEC 60062 standard (the international standard for resistor and capacitor marking codes), the anatomy of a 5-band resistor is strictly defined:
- Bands 1, 2, and 3 (Significant Digits): These map directly to numbers 0-9. For example, Yellow-Violet-Black translates to 4-7-0.
- Band 4 (Multiplier): This tells you how many zeros to add to the significant digits, or acts as a decimal multiplier (gold/silver). A red multiplier means ×100.
- Band 5 (Tolerance): This indicates the manufacturing variance. A brown band means ±1%, while gold means ±5%.
The Complete IEC 60062 5-Band Color Code Data Table
The table below contains the complete, un-truncated lookup values. Bookmark this section. Note that while a strict 5-band resistor ends at tolerance, precision datasheets and extended charts often include a 6th band for Temperature Coefficient (tempco). I have included the tempco column here because high-precision 5-band resistors (like 0.1% tolerance) are frequently sold with this 6th derating band.
| Color | Bands 1-3 (Digit) | Band 4 (Multiplier) | Band 5 (Tolerance) | Band 6 (Tempco / Derating) |
|---|---|---|---|---|
| Black | 0 | ×1 (10⁰) | — | 250 ppm/°C |
| Brown | 1 | ×10 (10¹) | ±1% | 100 ppm/°C |
| Red | 2 | ×100 (10²) | ±2% | 50 ppm/°C |
| Orange | 3 | ×1k (10³) | — | 15 ppm/°C |
| Yellow | 4 | ×10k (10⁴) | — | 25 ppm/°C |
| Green | 5 | ×100k (10⁵) | ±0.5% | — |
| Blue | 6 | ×1M (10⁶) | ±0.25% | 10 ppm/°C |
| Violet | 7 | ×10M (10⁷) | ±0.1% | 5 ppm/°C |
| Grey | 8 | — | ±0.05% | — |
| White | 9 | — | — | 1 ppm/°C |
| Gold | — | ×0.1 (10⁻¹) | ±5% | — |
| Silver | — | ×0.01 (10⁻²) | ±10% | — |
How the Derating (Tempco) Rows Modify the Base Value
If your resistor has a 6th band, it specifies the Temperature Coefficient in parts per million per degree Celsius (ppm/°C). This tells you how much the base resistance value will drift as the component heats up. For example, a 10,000 Ω (10k) resistor with a Red tempco band (50 ppm/°C) will change its resistance by 0.05% for every 1°C change in temperature. If the ambient temperature rises by 20°C above the 25°C baseline, the resistance shifts by 100 Ω. In precision analog-to-digital converter (ADC) voltage dividers, this derating row is the difference between a stable reading and a noisy, temperature-dependent mess.
Bookmark Quick-Jumps: Most Queried 5-Band Values
When you are digging through a mixed bin of through-hole components or verifying a BOM for a PCB assembly, you rarely need to calculate obscure values. According to component distributor data, over 80% of 5-band resistor queries fall into a handful of standard E96 series values. Here are the quick-jump color sequences for the most common bench parts (assuming a standard 1% Brown tolerance band):
- 100 Ω (100R): Brown - Black - Black - Black - Brown (Common for low-side current shunts)
- 220 Ω: Red - Red - Black - Black - Brown (Standard 5V LED current limiter for ~15mA)
- 330 Ω: Orange - Orange - Black - Black - Brown (Standard 3.3V LED current limiter)
- 1 kΩ (1k): Brown - Black - Black - Brown - Brown (Universal I2C pull-up or general bias)
- 4.7 kΩ (4k7): Yellow - Violet - Black - Brown - Brown (Standard I2C pull-up for 100kHz buses)
- 10 kΩ (10k): Brown - Black - Black - Red - Brown (The undisputed king of pull-ups, pull-downs, and voltage dividers)
- 100 kΩ (100k): Brown - Black - Black - Orange - Brown (High-impedance pull-ups, op-amp feedback)
For a fast digital verification on the bench, pairing these visual checks with a tool like the All About Circuits Color Code Calculator can save you from misreading faded orange bands that look suspiciously like red under fluorescent shop lights.
Decision Path: Selecting the Right 5-Band Resistor
Knowing the value is only half the battle; specifying the correct tolerance and material for your circuit is where designs succeed or fail. Use this decision tree to terminate your part selection with a concrete pick.
| Application Scenario | Required Tolerance (Band 5) | Tempco / Derating Need | Concrete Part Pick |
|---|---|---|---|
| General Purpose: LED limits, microcontroller pull-ups, basic transistor biasing. | ±5% (Gold) or ±1% (Brown) | None required (ignore 6th band) | Yageo CFR-25 (Carbon film, 1/4W, 5%) |
| Precision Analog: Op-amp gain stages, ADC voltage dividers, sensor bridge balancing. | ±1% (Brown) or ±0.1% (Violet) | ≤ 50 ppm/°C (Red band) | Vishay MRS25 (Metal film, 0.6W, 1%, 50ppm) |
| High-Current Shunt: Measuring motor current or battery discharge rates via voltage drop. | ±1% (Brown) or ±0.5% (Green) | ≤ 15 ppm/°C (Orange band) | Bourns CSS series (Metal strip, specific wattage) |
What This Chart Cannot Tell You: Power, Derating, and Physical Limits
The most dangerous mistake a hobbyist can make is assuming the color code defines the component's physical limits. The resistor color code 5 band chart only tells you the nominal resistance and manufacturing tolerance. It tells you absolutely nothing about the following critical parameters:
- Power Rating (Wattage): A 10k Ω resistor can be physically sized at 1/8W (tiny), 1/4W (standard), 1W, or 5W (ceramic block). Power rating is dictated by the physical mass and surface area of the component, not its color bands. Always calculate your expected dissipation ($P = I^2R$) and select a physical package rated for at least 2× your calculated dissipation.
- Maximum Working Voltage: This is a frequently overlooked failure point. A standard 1/4W through-hole resistor typically has a maximum working voltage limit of 250V, regardless of its resistance value. If you use a 1 MΩ, 1/4W resistor across a 400V DC bus, the math says it will only dissipate 0.16W (well under the 1/4W thermal limit). However, the 400V will arc internally through the resistive film spiral, destroying the part. You must check the manufacturer datasheet for the voltage limit.
- Parasitic Inductance and Capacitance: If you are building high-frequency RF circuits or fast-switching snubbers, the material matters. Wirewound resistors act like inductors at high frequencies. Metal film resistors (the standard for 5-band precision parts) have very low parasitic inductance, making them the correct choice for high-speed digital and RF applications.
For a deeper dive into how physical package sizes dictate thermal limits and power derating curves, refer to the SparkFun Resistor Tutorial, which provides excellent visual breakdowns of package sizes versus thermal dissipation capabilities.
Ultimately, the 5-band color code is your key to identifying the electrical target of the component. Once you have verified the value and tolerance on the bench with a multimeter, your next step must always be verifying that the physical package size and material type can survive the thermal and voltage realities of your specific circuit.
