PSM500JB-39R

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Through Hole Resistors are essential components used in electronic circuits to identify the electrical flux necessary for regulating the electrical power used. PSM500JB-39R resistor is one type of compound through hole resistor, which is made from high-heat conductive metallization and achieved through the combination of metal-oxide-resistor (MOR) technology and film-resistors (RF) technology. This resistor can be widely used in the field of power supplies, LED lighting and various industrial devices.

The PSM500JB-39R resistor is composed of two parts, a main body and a resistor element. The main body is composed of two metal pins, an external ceramic cylinder and a ceramic disc. The electric spark between the two pins is used to create a diffusion effect of the resistance materials, through injecting metal-oxide into the external cylinder and the ceramic disc the needed low resistance value can be achieved. The resistor element holds the metal-oxide, arc-sprayed ceramic disc and center pins and is fixed in the main body.

At the central point between the two pins, there is a resistive element that consists of a metal film and a ceramic layer of metal oxide or both. The metal-oxide layer is the active component with the resistance value which varies with the temperature. The metal-film element also serves as an insulation layer with a protection against short circuits, which ensures that the resistance of the device is constant within a rated range.

The PSM500JB-39R resistor has a wide operating temperature range from -55°C to +125°C and operates at a temperature coefficient of -45°C to +125°C. During operation, a small amount of heat is dissipated and this heat is distributed evenly across the components in the device. As the temperature increases, the resistance also increases, and as the temperature decreases, the resistance decreases. The resistor element is also capable of withstanding the mechanical vibration and shock that may occur in the circuit during operation.

Furthermore, the PSM500JB-39R resistor has an UL 94V-0 flame-retardant material tp ensure safety in high current operations. This resistor is also lead-free and ROHS compliant to protect the environment from hazardous materials.

The PSM500JB-39R is used for high power operations such as switch mode power supplies, power amplifier and lighting systems. It provides an adjustable level of voltage and current regulation in these devices efficiently. In addition, the PSM500JB-39R is also used in smart meters and various industrial control systems due to its ability to regulate the surge of current quickly and accurately.

Overall, the PSM500JB-39R is a compound through hole resistor that can be used in a wide range of applications for efficient current and voltage regulation. It is robust and reliable with excellent operating temperature range, excellent noise suppression and excellent flame retardance. Furthermore, it is suitable for use in harsh environments, and provides an adjustable resistance value.

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