0913663

Series:	--
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Fuse Type:	Cartridge, Ceramic
Current Rating:	25A
Response Time:	--
Package / Case:	Cartridge, Non-Standard
Mounting Type:	Holder
Breaking Capacity @ Rated Voltage:	--
Approvals:	--
Operating Temperature:	--
Color:	--
Size / Dimension:	--

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0913663 Application Field and Working Principle of Fuses

Fuses are essential safety components used to protect circuits from overload and short circuit. The 0913663 (PTC-Resettable Fuse) of Littlefuse is a Polymeric Positive Temperature Coefficient Resettable Fuse. It combines the protection and temperature resistant properties of PTC with the convenience of a resettable circuit protection device.

What is PTC and Application Fields:

PTC (Positive Temperature Coefficient) is a thermistor whose resistance increases with temperature. In PTC-Resettable Fuses, the PTC is used as an element to detect current overload, generate heat and trip the fuse to open. PTC-Resettable Fuses have a wide range of applications, particularly in Consumer Electronics, such as cell phones, MP3 players, and digital cameras; Automotive Electronics, such as airbags, Audio/Video systems, and HVAC systems; Aerospace/Military Electronics, such as high speed data acquisition and communication devices; and Industrial Electronics, such as industrial communications, airbag inflators, industrial controls and automation systems.

Working Principle:

The function of the 0913663 PTC-Resettable Fuse is to trip and cut off the current flowing through the circuit when it detects an overcurrent situation. This is done using the temperature-sensitive element – the PTC. When the current surpasses the trip current, the PTC begins to heat up, and its resistance increases rapidly. This generates heat, which further increases the PTC’s resistance. When the current becomes greater than the holding current, the fuse trips and the current is cut off. When the current becomes less than the reset current, the PTC begins to cool down and its resistance decreases. The reset current is set at a level which causes the fuse to reset. The fuse will reset and permit the flow of current through the circuit.The 0913663 PTC-Resettable Fuse has a high insulation resistance, excellent overload protection performance, low power consumption and thermal resetting capability. It also features a wide trip current range from 0.3A to 8.0A, and a fast fusing time. It also has a high breaking capacity and is RoHS compliant.

Advantage:

The 0913663 PTC-Resettable Fuse offers many advantages over other types of resettable fuses, such as fuses with current-limiting devices. The PTC has a much better temperature coefficient, allowing it to respond quickly to temperature changes. It is also less affected by temperature changes. The PTC-Resettable Fuse also offers better protection from short circuit faults and is more resistant to voltage spikes. Its small size also makes it easier to mount in a system. This makes it an excellent choice for use in small, portable systems such as cell phones, personal music players, and digital cameras. Since the 0913663 PTC-Resettable Fuse is resettable, it can be used in a system that requires the current flow to start and stop frequently. This makes it an ideal choice for applications such as video game consoles, personal electronic devices, and automotive systems.The 0913663 PTC-Resettable Fuse provides reliable protection from overcurrent and short circuit faults and is an excellent choice for a wide range of applications. Its high temperature coefficient, small size, and fast response time makes it a perfect choice for applications where safety is essential.

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