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Through Hole Resistors

A through hole resistor is an electrical component used for electrical circuit protection and management. This component is often used when current needs to be reduced or diverted.

A typical through-hole resistor such as the CW0019R100JE12HS is basically composed of a resistor core, a metal end cap, and a plastic body. The resistor core is a ceramic tube containing a resistor element whose resistive value is determined by the doping of the ceramic material. The electrical connections consist of traces running along the ceramic axis and connected to the metal end caps. The plastic body provides mechanical protection and access for wiring connections with wire ties.

The working principle of the through-hole resistor is simple and effective. The resistor core acts as a voltage regulator, limiting the amount of current that can flow through the circuit. The voltage regulator works through the difference in resistance of the ceramic material. The metal end caps form the electrical connection between the resistor core and the external circuit, allowing the current to flow through the resistor. Depending on the type of resistor, it can be used to protect a circuit, divert current or set a current limit.

In practical applications, the through hole resistor is mostly used as a protective element in the circuitry. It is a simple and cost effective solution for overvoltage, overcurrent and power-on reset conditions. The through hole resistor is also commonly used in circuits that require more precision and tuning such as audio, motor controllers and power supplies.

Overall, the through hole resistor plays an important role in managing and protecting electrical circuits, thus ensuring that they work properly and safely. It is a simple, cheap and reliable way of reducing or diverting current in a circuit and can provide consistent performance and protection in a wide variety of circuits.

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