RER50F51R1RC02

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Chassis Mount Resistors

Chassis mount resistors, also referred to as surface mount resistors, are resistive components mounted to a printed circuit board (PCB) by surface-mount soldering. These resistors come in various configurations, but the type specifically discussed here is the RER50F51R1RC02, which is a carbon film resistor.

RER50F51R1RC02 Application Field

The RER50F51R1RC02 is particularly used in very low power and low voltage applications, as the maximum power temperature rating is only 50mW. As well, since it is a carbon film resistor, its temperature coefficient tends to be higher than other resistor types. This accuracy, combined with its moderate price tag, makes it the preferred component for use in a number of different applications, including:

• Musical instruments and audio equipment
• Consumer appliances
• Computer peripherals
• LED indicators and switches
• Automobile electronics

RER50F51R1RC02 Working Principle

The RER50F51R1RC02 consists of a piece of carbon film, which acts as both the resistor material and the substrate. Thin films of metallic conductive material are applied to the surface of the carbon film, creating a resistance element. This resistance element is connected between two copper leads, which are then soldered to a PCB. Several other components, such as insulation materials and a special protectant coating, are also added to the carbon film.

Once a huge current passes through this resistor, its temperature will rise, and the resistance will alter accordingly. The temperature coefficient of the RER50F51R1RC02 is around a stunning ±100ppm/K, meaning that the device is suited for highly sensitive applications. Meanwhile, its maximum operating temperature is rated at 65°C.

Conclusion

All in all, the RER50F51R1RC02 chassis mount resistor is a highly accurate and cost-effective resistive component, capable of handling very low wattages and voltages. Its excellent temperature performance makes it suitable for a wide variety of low-power applications, including electronic musical instruments, consumer appliances, computer peripherals, LED indicators, switches, and more.

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