The uses for custom resistors are manifold. The custom resistors are components of electric circuits which are primarily used to resist the flow of electric current in an electric circuit. This is usually the case for many wiring situations so that certain conditions can be created for various use cases. The concept of resistance may also be useful in instances where heat has to be generated by resisting the flow of electric current through a given path. In such a case, the conductor becomes heated and the heat can be harnessed for a number of uses.
The needs for resistance in a circuit are many as we have seen. Due to this fact, it is becoming almost impossible to work without the use of resistors. Usually, resistors can be said to be fixed or variable. Variable resistors do not come with an off the shelf resistance value but can be varied to attain various levels of resistance as may be necessary for certain conditions in a circuit. On the other hand, fixed valued resistors are those which come affixed with a single resistance value as is set by the manufacturer.
It is very important that you evaluate certain conditions before you can buy custom resistors so that what you buy will be what is needed for your wiring needs. The value of the resistance that a resistor offers is one of the things that you certainly should first of all consider. This value is usually dependent on the type of a resistor that you buy with variable resistors giving you an opportunity to vary it as is necessary for your circuit needs.
The decision on the type of any resistor to use, fixed or of varied value, is dependent on the kind of a circuit that you want to wire. Variable resistors are ideal for circuits whose resistance needs to be varied depending on certain conditions. Conversely, fixed resistors will be ideal for circuit conditions that are static over a period of time.
The last aspect that you ought to take into account is the manufacturer of the resistor you intend to buy. There are certain manufacturers who have been in this business for the longest period of time. Owing to this fact, they are more likely going to give you the best quality of work in the resistors you order from them. They are also the people you should always go to whenever you find that you need after sales services or information regarding the use of certain resistors because they have a wide pool of experience that they have accumulated over the years they have been in business.