90J18RE

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Through hole resistors are a type of electrical component whose purpose is to regulate the amount of current flowing through a system. The most common type of through hole resistor is the 90J18RE, which is designed to resist high voltages. This type of resistor is used in a variety of different applications, and its working principle is based on the fundamental law of electricity - Ohm\'s Law.

Ohm\'s Law states that the current flowing through a conductor is directly proportional to the voltage applied across it. Therefore, when a certain voltage is applied across the resistor, the current passing through it will be limited to its resistance rating. In the case of a 90J18RE, its resistance rating is 18 ohms, meaning that the maximum amount of current it can handle is 18 amps at any given time.

The 90J18RE is typically used in applications where a relatively large current needs to be regulated. Its high resistance rating makes it ideal for protecting sensitive electronic components from voltage spikes. It can also be used in power supplies and circuit boards where a high current is required. In addition, the 90J18RE can be used as a limiting element in AC circuits, providing protection against accidental shorts and surges. It can also be used for motor control, temperature control, and other high current applications.

The working principle behind the 90J18RE is based on the fact that it is a linear resistor. When a voltage is applied across it, the current passing through it will be linearly proportional to the voltage applied. This law is known as Ohm\'s Law, and it states that the current through a resistor is directly proportional to the voltage applied across it. Therefore, when a certain voltage is applied across the resistor, the current passing through it will be limited to its resistance rating.

In addition, the 90J18RE also has a thermal rating, which indicates how much temperature the resistor can handle before its performance is affected. This is an important consideration for many applications such as motor control, where the temperature of the environment or the resistor itself may be high. Consequently, thermal ratings of resistors should always be taken into consideration when selecting a resistor for any particular application.

Overall, the 90J18RE is a valuable component in a variety of applications due to its highly efficient thermal rating and the fact that its current capabilities can be easily controlled through Ohm\'s Law. It is ideal for protecting sensitive electronic components from voltage spikes and providing reliable motor control, temperature control, and other high current applications.

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