Actual value by tolerance
| Tolerance | Band | Minimum | Maximum |
|---|
| ±1% | Brown | 118.8 kΩ | 121.2 kΩ |
| ±2% | Red | 117.6 kΩ | 122.4 kΩ |
| ±5% | Gold | 114 kΩ | 126 kΩ |
| ±10% | Silver | 108 kΩ | 132 kΩ |
SMD and printed codes
| SMD, 3 digits | 124 |
|---|
| SMD, 4 digits | 1203 |
|---|
| SMD, EIA-96 | not used for this value |
|---|
| Letter code (IEC 60062) | 120K |
|---|
Current and power at common voltages
| Voltage | Current | Power | Resistor rating |
|---|
| 3.3 V | 27.5 µA | 90.7 µW | 1/8 W |
| 5 V | 41.7 µA | 208 µW | 1/8 W |
| 9 V | 75 µA | 675 µW | 1/8 W |
| 12 V | 100 µA | 1.2 mW | 1/8 W |
| 24 V | 200 µA | 4.8 mW | 1/8 W |
As an LED resistor
Current through one LED in series with 120 kΩ:
| Supply | Red LED (2.0 V) | White or blue LED (3.2 V) |
|---|
| 3.3 V | 0.0108 mA | 0.000833 mA |
| 5 V | 0.025 mA | 0.015 mA |
| 12 V | 0.0833 mA | 0.0733 mA |
LED Resistor Calculator →
Standard series
120 kΩ is a standard value in the E12, E24 series, so it comes in almost every resistor kit.
Nearby values
Same first two colors, different multiplier:
Frequently asked questions
What are the colors of a 120 kΩ resistor?
On a 4-band resistor: brown, red, yellow, gold. On a 5-band resistor: brown, red, black, orange, brown.
What is the SMD code for 120 kΩ?
124 on 3-digit resistors and 1203 on 4-digit (1%) resistors.
How much current flows through a 120 kΩ resistor at 5 V?
41.7 µA, dissipating 208 µW. A 1/8 W resistor is enough.
Which resistors get mixed up with 120 kΩ?
brown, red, orange, gold is 12 kΩ and brown, red, green, gold is 1.2 MΩ: only the third band changes, so check it carefully.
