Actual value by tolerance
| Tolerance | Band | Minimum | Maximum |
|---|
| ±1% | Brown | 5.049 kΩ | 5.151 kΩ |
| ±2% | Red | 4.998 kΩ | 5.202 kΩ |
| ±5% | Gold | 4.845 kΩ | 5.355 kΩ |
| ±10% | Silver | 4.59 kΩ | 5.61 kΩ |
SMD and printed codes
| SMD, 3 digits | 512 |
|---|
| SMD, 4 digits | 5101 |
|---|
| SMD, EIA-96 | not used for this value |
|---|
| Letter code (IEC 60062) | 5K1 |
|---|
Current and power at common voltages
| Voltage | Current | Power | Resistor rating |
|---|
| 3.3 V | 647 µA | 2.14 mW | 1/8 W |
| 5 V | 980 µA | 4.9 mW | 1/8 W |
| 9 V | 1.76 mA | 15.9 mW | 1/8 W |
| 12 V | 2.35 mA | 28.2 mW | 1/8 W |
| 24 V | 4.71 mA | 113 mW | 1/4 W |
As an LED resistor
Current through one LED in series with 5.1 kΩ:
| Supply | Red LED (2.0 V) | White or blue LED (3.2 V) |
|---|
| 3.3 V | 0.255 mA | 0.0196 mA |
| 5 V | 0.588 mA | 0.353 mA |
| 12 V | 1.96 mA | 1.73 mA |
LED Resistor Calculator →
Standard series
5.1 kΩ is a standard value in the E24 series. Check the tolerance and power rating of the actual component.
Nearby values
Same first two colors, different multiplier:
Frequently asked questions
What are the colors of a 5.1 kΩ resistor?
On a 4-band resistor: green, brown, red, gold. On a 5-band resistor: green, brown, black, brown, brown.
What is the SMD code for 5.1 kΩ?
512 on 3-digit resistors and 5101 on 4-digit (1%) resistors.
How much current flows through a 5.1 kΩ resistor at 5 V?
980 µA, dissipating 4.9 mW. A 1/8 W resistor is enough.
Which resistors get mixed up with 5.1 kΩ?
green, brown, brown, gold is 510 Ω and green, brown, orange, gold is 51 kΩ: only the third band changes, so check it carefully.
