B59840C0120A070

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PTC Resettable Fuses are a type of overcurrent protection device used for sensitive electronics, computer systems, and other electrical circuits. These fuses are designed to trip when a certain overcurrent threshold is reached, and will reset itself when the current drops below a certain level. The B59840C0120A070 is a type of PTC Resettable Fuse and is available in a range of ratings, including 3A, 6A, 10A, 15A, and 20A.

The B59840C0120A070 is a two-terminal fuse with an integrated PTC (Positive Temperature Coefficient) element. The PTC element is a self-heating resistor which experiences an increase in resistance when exposed to an overcurrent. This increase in resistance is what causes the fuse to trip and protect the circuit. The two-terminal design of this fuse makes it simpler to install in a circuit and reduce the amount of soldering required.

The B59840C0120A070 is suitable for use in a wide range of applications, including consumer electronics, audio equipment, power supplies, personal computers, high-precision instruments, and other consumer and industrial applications. In consumer electronic applications, it can protect against shorts and surges, and in high-precision equipment, it can provide additional protection against overvoltage and overcurrent. In power supplies, the B59840C0120A070 can act as an overcurrent limiter, preventing damage to components.

The working principle of the B59840C0120A070 is based on self-heating of the integrated PTC element. When the current passing through the fuse exceeds the rated current of the device, the PTC element begins to heat up. This increase in temperature causes the resistance of the element to increase, which in turn increases the voltage drop in the circuit and reduces the current to a safe level. When the current drops to a safe level, the PTC element will cool down and its resistance will decrease, allowing for normal operation of the circuit.

The B59840C0120A070 PTC Resettable Fuse is an effective solution for protecting sensitive electronics and other electrical circuits from overcurrent. Its simple design and wide range of ratings make it suitable for use in a variety of applications. Its unique working principle makes it particularly effective in protecting delicate circuits, and it can provide protection against shorts, surges, and overvoltage. With its ability to reset itself when the current drops below a certain level, the B59840C0120A070 can provide reliable protection for a variety of electrical circuits.

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