MF-R600

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PTC Resettable Fuses, such as MF-R600, are designed to protect against short circuits and overcurrent applications in electronic and electrical systems. The main purpose is to act as an automatic self-resetting circuit breaker in the event of an overload or short circuit. The fuses are composed of two main components, a positive temperature coefficient (PTC) resistor and an ordinary shunt resistor. PTC Resettable Fuses are commonly used in the automotive and power supply industries, consumer electronics, and industrial and commercial applications. Additionally, the fuse can also be used to provide power dissipative protection.

The MF-R600 is a mid-range size resettable fuse rated 6.0A @125VAC. The fuse is available with a 5.0 x 20mm bushing and is suitable for a variety of board spacing and printed circuit board applications. The PTC element is composed of a polymeric material and a metal spring. The PTC element is activated when the current passes through the resistor and the metal spring starts to heat up, resulting in a change in the material properties of the polymeric material. This change in material properties results in an increase in the resistance of the PTC element, causing the circuit to break.

When the current in the circuit drops below the maximum operating range, the metal spring immediately cools down, resulting in a decrease in the resistance and allowing the circuit to re-close. The thermal time-constant of the PTC element determines how quickly the current will be interrupted and the length of time it remains interrupted.

The PTC element of the MF-R600 resettable fuse ensures that it is completely self-resetting, making it suitable for applications which require protection against overcurrent and short circuit faults. Unlike ordinary fuses, the PTC element does not require replacement after it has been tripped, as it automatically resets itself without the need for user intervention. This makes the MF-R600 a cost-effective and reliable way of protecting an electrical system against overcurrent and short-circuit faults.

PTC Resettable Fuses, like the MF-R600, provide engineers with a safe and reliable way to protect an electrical system by controlling the current when it exceeds the fuse\'s rated current. The fuse is ideal for applications which require a long-term protective device which can self-reset after it has been tripped. By combining a PTC element and an ordinary shunt element, the MF-R600 provides an effective solution for overcurrent and short-circuit protection and is suitable for a variety of applications.

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