22J20RE

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Through Hole Resistors occupy an important place in the whole resistor industry, and 22J20RE application field and working principle is included in them. There are many application scenarios for Through Hole Resistors, mainly for the protection of electrical equipment, which can "restrict" the "flow" of electrical current. Its working principle is also very simple, that is, through the winding of the resistor component and the application of physical law, the electric current is hindered to achieve the desired effect.

The 22J20RE is a Through Hole Resistor, which is composed of a resistor element, two fixing screws, a rubber protection cover, a sliding block, and a metal case. It is suitable for the protection and current limitation of microwave switching power supplies. Its operating voltage can reach 220VAC and its electric current can reach 20A. This resistance value mainly depends on the resistance of a resistor element, the metal part of the sliding block and the metal casing can guarantee the safety and reliability of the product.

When 22J20RE is used, the basic installation includes spot welding solder pads on the circuit board, attaching the resistor component to the slot, connecting the wires of the resistor to the board, and fixing the resistor component to the board. The screws of the 22J20RE are generally tightened by the means of a wrench to ensure that the resistor is firmly attached to the board.

The working principle of the 22J20RE is also simple, that is, in the working state, put the electric current into the resistor, due to its resistance value, the electrons will produce the drift resistance when passing current, and this drifting flow will increase with the increase of the load current. Due to the increase of drift current, the instantaneous high temperature will be produced at the contact area of the a and b copper plates on the resistor element, and the size of drift current depends on the size of its resistance. Therefore, the 22J20RE can limit the current and still maintain the normal operation of the appliance.

In addition to the above-mentioned basic working principle of the 22J20RE, it is necessary to pay attention to the following points in the actual selection of the resistor: it is necessary to select a resistor with a certain power margin to ensure the reliability of the system; the thermal environment and temperature rise should meet the requirements of the service conditions; it should meet the requirements of the rated current and the nominal power; and it should also consider whether the permissible ripple current size can meet the expected working current.

In conclusion, 22J20RE application field and working principle are related to Through Hole Resistors, and its working principle is quite simple and easy to understand. It is used for current protection and current limitation on the equipment, and the user needs to pay attention to the temperature rise and rated current when selecting it.

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