0ZRM0030FF1E

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PTC Resettable Fuses, model OZRM0030FF1E, are used to protect circuits, products, equipment and personnel against misstatements of currents. Because they are easy and cheap to install, they have become widely accepted in many industries.

PTC Resettable Fuses are current-sensing devices that react to an overcurrent condition by sensing the presence of an excessive current which causes a small increase in temperature. Once the temperature rises, the resettable fuse will open to ensure a loss of power and will remain in that OFF state until the over-current conditions have been removed. This makes it an ideal choice for protecting components and circuits from the damaging effects of an overcurrent situation.

The OZRM0030FF1E resettable fuse has a maximum rated voltage of 30V DC and a maximum current rating of 1A. It has an operating temperature range of -32°C to 85°C and is constructed with a flame-retardant, halogen-free body designed to withstand very high temperatures. It has an operating life of 100,000 cycles with a hold time of 0.25 second and a trip time of 12.5 ms. It is also UL recognized as an overcurrent protection device.

The resettable fuse has a wide variety of applications, and is most commonly used in consumer electronics like mobile phones, laptops and tablets, in automotive applications such as onboard diagnostics, and in power conversion and industrial control systems. It is also used for motor overload protection, signal and power protection, and surge protection.

The working principle is simple. When an overcurrent situation occurs, the resistance of the fuse increases, causing heat to be generated. This heat causes the temperature of the fuse to rise until a predetermined trip point is reached. At this point, the fuse opens, reducing the flow of current to a safe level. Once the overcurrent situation has been removed, the temperature inside the fuse will decrease within seconds, and the resistance will normalize, allowing power to be restored.

PTC Resettable Fuses, like the OZRM0030FF1E model, have a range of applications and possess valuable safety characteristics, making them an ideal choice for protecting components and circuits from the damaging effects of an overcurrent situation.

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