CB15JB27R0

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Through Hole Resistors

Through hole resistors, also known as \'disc\' or \'axial\' resistors, are the most common type of resistor used in electronic circuits. They are designed to be inserted into circuit boards using holes in the boards. They can be used to provide general resistance or may be part of some critical networks. As their name implies, they are inserted into holes in the board, their pins then connecting to the board\'s trace patterns.

In order to identify different types of through-hole resistors, each resistor is assigned a manufacturer\'s code (often referred to as the resistor\'s part number). This code usually consists of a series of letters and numbers that denote the resistance, tolerance and power rating of the resistor. For example, the CB15JB27R0 is a through-hole resistor that contains the characteristics below:

• CB: This part of the code indicates that the resistor is a through-hole resistor

• 15: This indicates that the resistor has a tolerance of 15%. In other words, the actual resistance of the resistor will usually be within 15% of the specified value.

• JB: This code denotes that the resistor has a power rating of 2W

• 27R0: This code specifies the resistance which is 2.7 Ohms

The main applications of through-hole resistors involve providing general resistance in low power circuits such as signal circuits. Due to their low cost and ease of use, they are also popular in mains power applications, especially in power supplies. They are also used in filters, feedback loops and in timing circuits.

The working principle of through-hole resistors is quite simple. Electrons are pushed from power source to the conductor which creates a voltage across the resistor. The resistor then has a certain resistance which creates a voltage drop across itself. This voltage drop then dissipates the energy from the current as heat. The resistor will also draw current and thus reduce the voltage at the output.

Through-hole resistors provide a basic, yet important, set of functions for many electronic circuits. They can provide basic resistance, help protect against dangerous voltages, create timing delays, and provide feedback in many control loops. They are also relatively cheap when compared to other resistor types, making them a popular choice in many common applications.

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