B59995C0160A070

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PTC resettable fuses, also known as polyfuse, are a widely-used type of resettable fuse device in power protection circuits, particularly in the electronics industry. Originally designed to protect from transient electrical over-voltages, the fuse is manufactured with metal oxides and a conductive path usually laid out on a printed circuit board. The fuse uses a conductive polymer material in a thin-film form inside the case to provide a fast acting, cost-effective solution for over-voltage protection.

The B59995C0160A070 PTC resettable fuses, manufactured by NXP Semiconductors, is a compact, reliable and cost-effective device which can be deployed in a wide range of applications, off- and on-board. These include appliances, motor control, LED lighting, automotive and industrial control systems.

Typically, the PTC resettable fuse application field involves the protection of microcontroller or other integrated circuits from damage due to over current or short-circuiting. The B59995C0160A070 is designed to resist long-term overcurrent and short-circuiting, while and automatically resets after the overload has been removed. It also features a very low temperature coefficient of the reset voltage (TCR) and low on-resistance.

The working principle of the B59995C0160A070 resettable fuse relies on the fact that it utilizes a wide positive temperature coefficient (PTC) resistor which has a low resistance when cold and a very high resistance when it gets hot. When connected in a DC circuit and an overload current is applied, the PTC resistor element in the fuse will heat up and effectively increase its resistance. This causes the current flowing in the circuit to decrease, as long as the overload current is present, the PTC resistor element will remain in a hot state and thus continuously decrease the current flowing in the circuit. When the current is under the maximum limit, the PTC resistor element will cool down and its resistance will decrease back to a low value, thus allowing the fuse to reset itself.

The B59995C0160A070 PTC resettable fuse is available as a low cost, high-efficiency solution for controlling short-circuits and protecting electronic circuitry from power surges. It features an extremely fast response time, low on-state resistance, low temperature coefficient of the reset voltage, and can resist large overload currents. It is suitable for AC and DC applications, and is an ideal choice for high-voltage and current distribution from power sources.

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