50 Pieces 390K ohm 390000 ohm 1/4w 1/4 w 5%

Description

50PCS Resistor 390K ohm 390000 ohm 1/4w 1/4 w 5%

Tutorial: How to Use 390K ohm Resistors

390K ohm resistors are useful for limiting current flow in a circuit and regulating voltages. Ideal for beginners and intermediate makers.

What you need

• 390K ohm Resistors
• Multimeter
• Soldering iron (with solder)
• Circuit board
• Resistor holder (optional)

Steps

1. 1. Check specifications on the datasheet.
2. 2. Take a 390K ohm resistor.
3. 3. Identify the pins: one is generally longer or darker.
4. 4. Connect the longer pin to the + of a circuit.
5. 5. Connect the shorter pin to the – or to a resistor holder.
6. 6. Test the resistor with a multimeter.
7. 7. Verify the maximum allowed current.
8. 8. Install the resistor on the circuit.
9. 9. Check the circuit’s functionality.

Mini project

Build a simple aluminum circuit with a 390K ohm resistor as a voltage divider. In 30 minutes, learn to regulate the voltage of an LED.

Common mistakes

• Do not follow the specifications on the datasheet.
• Connect the wrong pins.
• Use a soldering iron that is too hot or too cold.
• Omit the test with the multimeter.

Recommended accessories

• Resistor holder
• Multimeter
• Soldering iron
• Circuit board

Frequently asked questions

Can I use 390K ohm resistors as current limiting resistors?
Yes, but check the maximum allowed current.

How much heat does a 390K ohm resistor produce?
The resistor produces very little heat due to the 1/4W power rating.

Can I use 390K ohm resistors for all my projects?
Use them only if the required resistance is 390K ohm.

How can I verify the correct installation?
Use a multimeter to measure the resistance and check the current.