What can I use instead of a resistor?

What can I use instead of a resistor? Explained another way: an electrical circuit that has a difference of 2 volts, with 1 Ampere of current flowing through it, has a resistance of 2 Ohms. All electrically conductive materials are somewhat resistive, too. Because of this, even a good electrical conductor, such as metal wire, can be used as a resistor.

Is fuse and resistor the same? A resistor is a passive two-terminal electrical component, which provides some resistance to the flow of current. A fuse is a safety device, providing overcurrent protection of an electrical circuit. Many fuses are made from a resistor, which melts if too much current flows through it.

How much resistance does a fuse have? Next question: how much resistance has a fuse? Well, it depends on its type and on its voltage, current and I2t ratings. The nominal “cold” resistance (i.e., at < 10% rated current) can range from < 10 milliOhms up to several Ohms.

Is there a fuse resistor? A fuse is a small and thin electrical component, used to guard different circuits by securely opening the circuit in high current loads. A fusible resistor is one type of resistor used to protect the circuit from over current.

What can I use instead of a resistor? – Additional Questions

How does a fuse resistor work?

A fusible resistor opens up like a fuse when its current rating is exceeded. The component is generally a nichrome element with a melting temperature of around 1400° C. Nichrome has a low thermal coefficient of resistance that allows the resistor to have a stable resistance over temperature.

Does fuse wire have high resistance?

As a high amount of current is passing, resistances of the fuse wire have to be large due to which the heat produced will be high and it is broken down immediately. Hence, fuse wire is a wire of high resistance and low melting point.

How do you test a fuse resistor?

How many types of resistors are there?

Normally resistors can be classified into two types namely linear resistor and non-linear resistor.

What is a foil resistor?

A foil resistor is a high precision component to limit electric current. The opposition to current flow is provided by a very thin piece of metal.

What is SMD resistor?

A surface mount resistor is a tiny rectangular ceramic body with silver conductive edges on either end. Also referred to as surface mount technology, an SMD resistor offers advantages in saving space on printed circuit boards (PCBs). It features the resistance value code printed onto it, where there is space.

What are the 4 types of resistors?

Types of Resistors
  • Fixed Value Resistors. These are the predominant type of resistor configuration, and as the name suggests, they have a fixed resistance value.
  • Variable Resistors.
  • Resistor Networks.
  • Carbon Film Resistors.
  • Metal Film Resistors.
  • Wirewound Resistors.
  • Metal Oxide Resistors.
  • Metal Strip Resistors.
READ:  How does a neutral atom become an ion quizlet?

What does R mean on a resistor?

What Does Resistance (R) Mean? Resistance (R) is a property of a material used for describing the opposition provided to the flow of current. The higher the resistance provided by a material, the lower the flow of electrons or current through the material.

Can I replace SMD resistor with normal resistor?

Yes. Just make sure you use the same resistor value with a power rating equal or greater than the smd part (which should be easy) and bend the leads to fit the solder pads of the smd part and solder it in place after removing the smd part.

What is the difference between SMD resistor and normal resistor?

An SMD resistor is a type of resistor that has been designed to be surface mounted. These SMD resistors are typically much smaller than traditional resistors, thus taking up much less space on a circuit board. The SMD part of “SMD Resistor” stands for Surface Mounted Device.

How do you know if a resistor is burnt?

The resistor will be hot to touch and a faint whiff of burning may be detectable. The burning odor is the breaking down of the components of the resistor: the carbon, the clay binding agent and the color code pigment painted on the resistor.

What happens when a resistor fails?

When a resistor fails, it usually gets charred or burns. As a result, it either stops conducting the electrical current/signal or does not resist the current flow.

What happens if a resistor is open?

As you can see, when an open occurs in a parallel branch, total circuit resistance increases and total circuit current decreases.

What causes a resistor to go bad?

A fixed composition resistor normally fails in an open configuration when overheated or overly stressed due to shock or vibration. Excessive humidity may cause an increase in resistance. A variable composition resistor may wear after extensive use, and worn away particles may cause high resistance short circuits.

Why would a resistor burn out?

When electricity is conducted through a resistor, heat is generated and dissipated through the surrounding air. Under excessive voltage, a resistor generates so much heat that it cannot dissipate the heat quickly enough to prevent burning.

How do you fix a burnt resistor?

Find the Value of Burnt Resistor by Four Simple Methods
  1. Scarp the outer coating.
  2. Clean the burnt section of the resistor.
  3. Measure resistance from one end of the resistor to the damaged section.
  4. Again measure the resistance from the damaged section to the other end of the resistor.
  5. Add these two values of resistances.

Can a resistor start a fire?

Some resistors go on fire when grossly overloaded. Some are self extinglishing and some are not. If you have a source that has a very high prospective fault current you must be very careful.


READ:  What does gamma radiation consist of electromagnetic waves?