What is a power resistor used for?
Power resistors are used when there is a need to safely convert large amounts of energy into heat using electrical energy as a medium. They are used as controllable power dissipation devices, protective devices, and devices that simulate real world loads.
What power rating resistor do I need?
This is known as the Resistor Power Rating. Resistors are rated by the value of their resistance and the electrical power given in watts, (W) that they can safely dissipate based mainly upon their size….The Resistor Power Triangle.
| Type | Power Rating | Stability |
|---|---|---|
| Wirewound | High up to 500 Watts | High 1% |
What is Watt in resistor?
The power rating of a resistor is measured in watts, and it’s usually somewhere between ⅛W (0.125W) and 1W. Resistors with power ratings of more than 1W are usually referred to as power resistors, and are used specifically for their power dissipating abilities.
Can I replace resistor with higher wattage?
Wattage refers to the maximum that a resistor can dissipate. So subbing a higher wattage for lower is perfectly fine without any changes.
How much power can a resistor handle?
Depending upon the size, construction, and ambient operating temperature, the power rating of resistors varies a lot from less than one tenth of a watt to many hundreds of watts. For an ambient temperature of +70 degrees Celsius, most resistors have their maximum resistive power rating given.
What is a 1/4 W resistor?
The power rating of a resistor is the specification given with a resistor that serves to tell the maximum amount of power that the resistor can withstand. Thus, if a resistor has a power rating of 1/4 watts, 1/4 watts is the maximum amount of power that should be fed into the resistor.
What happens if resistor is too high?
For a simple LED circuit there are no bad consequences of using a resistor of higher power. On the other hand, some type of high speed communication system may not like the increased capacitance to ground of a large resistor or, the increased series inductance.
What is the power of a crc56r3w resistor?
Resistor, power. Resistance: 220K Ohm. Power: 2 watt. tolerance: 5%. Package: axial. Package of 50. Learn More CRC – CRC56R3W – Resistor, power. 56 Ohm 3W. Package of 10. Resistor, power. Resistance: 56 Ohm. Power: 3 watt. Tolerance: 5%. Material: ceramic.
What is the power of a 10-watt resistor?
Package of 10. Resistor, power. Resistance: 56 Ohm. Power: 3 watt. Tolerance: 5%. Material: ceramic. Package: axial leads.
What is the resistance of a CRC 2W 220K resistor?
Resistance: 30 Ohm. Power: 2 Watt. Tolerance: 25. Package: axial leads. Package of 10. Note: Flame proof. Learn More CRC – CRC2W-220K – Resistor, power. 220K Ohm 2W. Package of 50. Resistor, power. Resistance: 220K Ohm. Power: 2 watt. tolerance: 5%.
What is the power and resistance of resistor?
Resistor, metal oxide. Resistance: 30 Ohm. Power: 2 Watt. Tolerance: 25. Package: axial leads. Package of 10. Note: Flame proof.