Actual value by tolerance
| Tolerance | Band | Minimum | Maximum |
|---|
| ±1% | Brown | 3.861 MΩ | 3.939 MΩ |
| ±2% | Red | 3.822 MΩ | 3.978 MΩ |
| ±5% | Gold | 3.705 MΩ | 4.095 MΩ |
| ±10% | Silver | 3.51 MΩ | 4.29 MΩ |
SMD and printed codes
| SMD, 3 digits | 395 |
|---|
| SMD, 4 digits | 3904 |
|---|
| SMD, EIA-96 | not used for this value |
|---|
| Letter code (IEC 60062) | 3M9 |
|---|
Current and power at common voltages
| Voltage | Current | Power | Resistor rating |
|---|
| 3.3 V | 0.846 µA | 2.79 µW | 1/8 W |
| 5 V | 1.28 µA | 6.41 µW | 1/8 W |
| 9 V | 2.31 µA | 20.8 µW | 1/8 W |
| 12 V | 3.08 µA | 36.9 µW | 1/8 W |
| 24 V | 6.15 µA | 148 µW | 1/8 W |
As an LED resistor
Current through one LED in series with 3.9 MΩ:
| Supply | Red LED (2.0 V) | White or blue LED (3.2 V) |
|---|
| 3.3 V | 0.000333 mA | 0.0000256 mA |
| 5 V | 0.000769 mA | 0.000462 mA |
| 12 V | 0.00256 mA | 0.00226 mA |
LED Resistor Calculator →
Standard series
3.9 MΩ 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 3.9 MΩ resistor?
On a 4-band resistor: orange, white, green, gold. On a 5-band resistor: orange, white, black, yellow, brown.
What is the SMD code for 3.9 MΩ?
395 on 3-digit resistors and 3904 on 4-digit (1%) resistors.
How much current flows through a 3.9 MΩ resistor at 5 V?
1.28 µA, dissipating 6.41 µW. A 1/8 W resistor is enough.
Which resistors get mixed up with 3.9 MΩ?
orange, white, yellow, gold is 390 kΩ and orange, white, blue, gold is 39 MΩ: only the third band changes, so check it carefully.
