AHP500JB-39R

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The AHP500JB-39R is a fixed, wire wound, chassis mount resistor type belonging to the chassis mount resistor family. It is designed to have a low thermal coefficient, high reliability and high maximum voltage rating. The resistor is often approved to IEC or JIS safety standards. The basic structure consists of an insulated metal tube with crimping or wire bonding on the inside. A terminal is attached to the outside of the tube, usually at each end for connection to the circuit. The resistor is insulated from the frame to avoid unwanted electrical matching.

The AHP500JB-39R is designed with an Ohmite low resistance resistor for the primary winding, and a high-wattage resistor between the two secondary windings. This combination provides the high-quality heat dissipation that is required for prolonged operation in an ambient environment. The resistance of the primary winding is varied by changing either the number of turns of the primary winding or the voltage applied to the secondary windings, or a combination of both methods.

The AHP500JB-39R is most commonly used in audio applications including speaker protection, headphone/earphone use, power amplifier supply lines, etc. It is also used in motors, appliances, medical equipment and other electronic devices. It is well suited for use in high-temperature environments as well as high-voltage applications.

The AHP500JB-39R application field and working principle can be described as follows. The primary winding is used to provide a high-quality voltage drop, while the secondary winding is used to provide a low-impedance impedance path to a power supply. This allows the voltage to be accurately regulated. Heat generated by the primary winding is dissipated by the secondary winding. The ratio of primary to secondary resistances is adjusted to match the required voltage regulation. The resistor is typically mounted into a metal chassis, and connections are made to the terminals. The contacting surface area of the metal chassis helps to dissipate heat and is used to provide electrical insulation from the chassis.

For applications requiring high-temperature durability, high-power, or high-voltage, the AHP500JB-39R chassis mount resistor is an excellent choice. The combination of the primary winding, the secondary winding and the metal casing provide high-quality properties that can be relied upon in a variety of applications.

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