PFRA.135

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PTC Resettable Fuses have a wide range of applications including automotive, consumer electronics, computers, and medical. They are typically rated for up to 15 amps, or 30 for transient protection; and offer protection against faults from arc-flash, overload, and short-circuit conditions. These fuses can be used to prevent fires and property damage by protecting against line-to-ground fault currents.

PTCs, or positive temperature coefficient resettable fuses, work by utilizing the physical phenomenon of temperature-dependent resistance. A PTC is essentially a polymeric network containing a wide variety of polymer chains. As the temperature increases, intermolecular forces between the chains increase resulting in larger heat resistance and heat dissipation levels. This also reduces the current flowing through the PTC, preventing thermal overload.

PFRA.135 is a model of a PTC resettable fuse, and it is designed with a self-reset feature for safety. When the PTC is in normal use, the self reset feature allows the fuse to trip automatically on an overcurrent fault, and to reset itself once the fault is removed. The PFRA.135 also features a wide operating temperature range, from -55°C to 125°C, and a low thermal resistance that ensures superior thermal performance and strong current interruption.

PFRA.135 is particularly common in automotive and industrial applications, since it is able to protect motor drive circuits and other high-power circuits from overload and short circuits. It can also be used in the consumer electronics industry, where it can help protect devices from accidental overheating or overloads. Additionally, as it is very durable and has a long life span, the PFRA.135 can be used in medical devices to protect against electrical shock.

The PFRA.135 application and working principle are also unique due to its combination of a lower thermal resistance and a high current interrupting capability. With its combination of temperature control and current limiting features, the fuse is able to provide higher levels of safety for electrical devices, while still being compact and highly reliable.

Overall, the PTC Resettable Fuses with model PFRA.135 are a highly versatile and reliable safety solution, with a wide array of potential applications. With its combination of temperature control and current-interrupting performance, the PFRA.135 can protect motor drive circuits, medical devices, and consumer electronics from potentially dangerous faults such as arc flash, overload, and short-circuit conditions.

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