CFR-25JB-52-1R6

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Through-hole (TH) resistors are passive two-terminal components that are used in many electrical and electronic circuits to limit or control current, power, and voltage in a circuit. The name “through-hole” refers to the construction of the device; instead of a core component intended for insertion into a printed circuit board (PCB), the leads (connecting wires or pins) of the component are physically in contact with the two sides of the PCB and soldered into place to provide electrical connection. In order to understand how a through-hole resistor works, it is important to first have a basic understanding of how it is categorised. The most commonly used naming convention for through-hole resistors is the CFR-25JB-52-1R6 series.

The name "CFR-25JB-52-1R6" essentially breaks down into four distinct components. The CFR part of the name is used to distinguish through-hole resistors from other types, such as surface mount resistors. The next two letters (25) represent the resistor\'s power rating (in watts). The last two digits (52) represent the resistor\'s resistance value (in ohms). The last two digits (1R6) represent the resistor\'s tolerance, which is specified in percentage terms. In this case, the tolerance of the CFR-25JB-52-1R6 is 1.6%.

Application Field

Through-hole resistors are most commonly used in power and signal circuits, where there is a need to limit current and reduce the effects of noise and EMF. Common applications include power supplies, amplifier circuits, signal conditioning, and filter circuits. In addition, through-hole resistors can also be used in automotive circuits, telecommunications, test equipment, and instrumentation systems.

Working principle

The working principle of a through-hole resistor is simple. Electrons entering the resistor from one side experience a resistance and are prevented from reaching the other side. This resistance is determined by the resistance value (in ohms) specified on the device. The higher the resistance value, the more electrons will be impeded from reaching the other side. The level of resistance is determined by the material composition of the resistor, as well as the physical size of the resistor.

It should also be noted that through-hole resistors dissipate energy in the form of heat, which can be an important consideration in certain applications. In such cases, it is essential that a suitable heat sink is used to dissipate the heat generated by the resistor.

To conclude, the CFR-25JB-52-1R6 series through-hole resistor is an important component in many electronic devices and circuits. With the correct selection of material composition, wattage rating, resistance value and tolerance, this series of resistors can provide an effective means to limit current, power, and voltage in a circuit.

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