H4249RBZA

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The H4249RBZA is a through-hole resistor, a type of passive two-terminal electrical component used to provide safety and control electrical current flow in a circuit. Through-hole resistors are usually preferred over surface-mount resistors as they are cheaper and easier to mount and handle. The H4249RBZA is a popular choice for through-hole resistor as it offers both a high power rating and a large value range.

Application Field

The H4249RBZA is a high power radial through-hole resistors and can be used in any application requiring a resistor with high power rating and a large value range. It is especially suitable for industrial control and instrumentation, automotive, telecommunications, medical, power electronics and other fields. It is commonly used in medium to high voltage applications, such as voltage dividers, current limiting, noise reduction, and circuit protection. It is also used in audio applications, such as equalizers, to adjust the frequency response of the audio signal.

Working Principle

The H4249RBZA consists of a cylindrical body that houses a resistive material surrounded by insulating material. Connections are made at either end of the cylinder, through pressure contacts or soldering. The resistive material may be composed of a non-conductive ceramic material or a metallic material such as copper, nickel, or chromium. The resistance of the resistor is determined by the material and its physical properties, but also by its geometry. The resistor is connected in series with the circuit so that a current passes through it. The current passing through the resistor causes the resistive material to heat up. This heats up the resistor and increases the resistance of the material. The higher the current, the greater the increase in resistance.

Conclusion

The H4249RBZA is a through-hole resistor, a type of passive electrical component used to provide safety and control electrical current flow in a circuit. It offers a high power rating and a large value range, and is ideally suited for high voltage applications. The resistance of the resistor is determined by the material and its physical properties, but also by its geometry. The resistor is connected in series with the circuit so that a current passes through it, with the current passing through the resistor causing the resistive material to heat up and thereby increases the resistance of the material.

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