WW3FB25R0

Through Hole Resistors

WW3FB25R0 is a type of through hole resistors.

Through hole resistor is a kind of resistors mounted type in a circuit board. It is in the form of a round or cylindric shape with metal plated lead wire located through two holes in a circuit board.

Through hole resistors can be categorized into thick and thin types. The thick type is also called axial lead resistor, which has rods protruding out both ends. The thin type is also referred to as leaded resistor or bent lead resistor with wavy or twisted lead.

The construction of through hole resistors are simple and consist of two metalized end caps with a resistive element housed between them. The element can be either a carbon composition material, a metal film or metal oxide, depending on the application. The resistive element is further protected by a coating of epoxy. The leadwires are connected to the metalized caps and are soldered to the PCB for secure connection. The presence of holes further helps to reduce the losses due to heat.

The power rating of through hole resistors are relatively low, in general ranging from 0.25 to 2 W. The primary function of resistors is to control current and voltage in a circuit. For applications requiring high power, wirewound or surge resistor should be used.

The most commonly used through hole resistors are carbon film resistors. These resistors are created by coating a carbon film on an alumina ceramic rod. This rod is then cut into uniform sizes to provide the necessary length. For instance, WW3FB25R0 is a type of carbon film resistor.

Each resistor has a unique part number to identify it and can range from 0.25 to 2 Watts. For a uniform size, the resistor is typically rated in ohms and by power dissipation. For instance, the WW3FB25R0 resistor is rated at 25 ohms with a power dissipation of 0.25 Watt. Through hole resistors are commonly used in communication devices, power supplies, lighting, heating and cooling systems.

WW3FB25R0 Application Field and Working Principle

WW3FB25R0 resistors are commonly used in communication device applications that require a high level of accuracy and stability. They are also used to control the current and voltage in circuits as well as providing a load for transistors.

WW3FB25R0 is a carbon film resistor with a resistance range of 25 ohms with a power dissipation of 0.25 Watts. Its design includes two metalized end caps, a resistive element protected by a coating of epoxy and two metal plated leadwires. The metal plated leadwires are soldered to the PCB for secure connection.

The resistance of a resistor is determined by the material it is made from and its length. In the case of the WW3FB25R0 resistor, its resistance is created by the carbon film which is deposited on an alumina ceramic rod. The rod is then cut into a uniform size in order to provide the necessary resistance. The wattage rating is determined by the amount of heat the resistor can dissipate without being damaged.

The working principle of the WW3FB25R0 resistor is based on Ohms law. The law states that when current passes through a resistor, a voltage drop is generated in proportion to its resistance. In other words, the voltage drop is proportional to the current, and the current is proportional to the voltage drop.

This is the basic working principle of resistors. WW3FB25R0 resistors use this principle to control the flow of current and voltage in a circuit.

In conclusion, WW3FB25R0 is a type of through hole resistors used for controlling the current and voltage in a circuit. It is constructed with two metalized end caps, a resistive element protected by an epoxy and two metal plated leadwires. Its resistance is determined by the material it is made from and its wattage rating is determined by the amount of heat it can dissipate without being damaged.