CF12JB12K0

Through Hole Resistors

A Through Hole Resistor (THR) is a type of resistor that is used to limit or adjust electrical current or power flow within an electronic circuit. THRs come in a variety of shapes, sizes and mountings and are available in different forms. The CF12JB12K0 THR is an example of a vertically mounted, axial-type THR.

The lead terminals of CF12JB12K0 Through Hole Resistors consist of two wires. One wire is soldered to the body of the resistor and the other is bent and passes through the central hole of the resistor. This creates an electrical connection between the wire and the resistor’s body. The leads enable the resistor to be mounted on a Printed Circuit Board (PCB). THRs are used in many applications such as power supplies, logic circuits, amplifiers and memory circuits.

CF12JB12K0 Application Field and Working Principle

The CF12JB12K0 THR is designed for use in high frequency or high pulse current environments and can handle up to 2 Watts of power. It is well suited for low voltage (<100V) and low current (<50mA) applications.

The CF12JB12K0 THR has two functions. The main purpose of the THR is to convert electrical energy into heat energy. This is done by passing current through a thin trim element, usually made of metal film, which has a known resistive value. The resistance of the trim element is dependent on the length of the element and the type of material used. The other function of the THR is to suppress voltage spikes or RFI (Radio Frequency Interference) in the circuit. This is done by using two metal plates to form a capacitor, which absorbs and discharges energy when exposed to pulse currents. This prevents high frequency signals from causing interference in the circuit.

The CF12JB12K0 THR is used in a variety of applications such as:

• In Power Supply Applications – To protect circuits against voltage transients and to limit inrush current;
• In Logic Circuits – To regulate current flow and voltage levels;
• In Amplifiers – For signal conditioning and impedance matching;
• In Wireless Applications – To reduce RF interference;
• In LED applications – To control the amount of current passing through the LED.

CF12JB12K0 Through Hole Resistors are ideal for applications which require protection against transient signals, current and power regulation, or impedance matching. They are reliable, easy to install and low cost components which are available in a variety of sizes, shapes, power ratings and resistances.