SMDC300F/24-2

Time to Trip:	5s
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.043" (1.10mm)
Height - Seated (Max):	--
Size / Dimension:	0.295" L x 0.201" W (7.50mm x 5.10mm)
Package / Case:	2920 (7351 Metric), Concave
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	--
Series:	SMDC
Current - Trip (It):	6A
Current - Hold (Ih) (Max):	3A
Current - Max:	40A
Voltage - Max:	24V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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PTC Resettable Fuses - SMDC300F/24-2 Application Field and Working Principle

PTC Resettable Fuses are protection devices that have revolutionised the power supply world. The SMDC300F/24-2 is a current resettable fuse that provides the maximum in protection for a wide range of applications from office and consumer electronics to industrial power supplies.The SMDC300F/24-2 is a fast reacting, self-resetting device with an I2t trip characteristic that allows it to protect equipment against over-current, over temperature, and short circuit conditions. Its low ohmic value and fast response make it an excellent choice for protecting motors, transformers, and dimmers in industrial or commercial settings.In terms of application fields, the SMDC300F/24-2 can be used to protect domestic appliances, consumer electronics, electric motors, power supplies, lighting, pumps, and other noise-sensitive equipment. It can also be used in vehicular applications, solar-powered applications, and other industrial applications.When it comes to working principle, the SMDC300F/24-2 is a polymeric positive temperature coefficient device. This means that when a current passes through the device, it will heat up. This leads to an increase in the resistance of the device and therefore, a drop in available current through the device. This current level drops until the device reaches its trip level and then cycles off for a time.Moreover, at the restart point, the fuse will slowly return to the normal level in a safe, serviceable, and repeatable manner. As the device is self-resetting, it will remain in operation mode until it trips off again.The SMDC300F/24-2 is designed with safety in mind. The device offers a wide operating voltage range, low trip current, and low impedance. It also features a low temperature coefficient, meaning that the trip current doesn\'t change significantly with temperature.Moreover, the SMDC300F/24-2 offers an alternative power supply protection solution to the standard self-resetting fuses. Unlike traditional fuses, which require a physical replacement in order to reset them, the SMDC300F/24-2 eliminates the need for this labor-intensive process.Furthermore, the SMDC300F/24-2 provides current control, limiting the amount of current that is allowed to flow through it. This provides the ultimate protection for the equipment it is connected to, as it prevents it from being subjected to any excessive current. In addition, it also ensures that the equipment with which it is connected receives consistent power.In conclusion, the SMDC300F/24-2 is an ideal resettable fuse for a variety of applications. It is a fast-acting, self-resetting device with a low ohmic value and low temperature coefficient which offer maximum protection for power supplies, lighting, pumps, motors, etc. Its readiness to cycle off and reset with minimal effort also makes it a great choice for electric and vehicular applications, as well as in the domestic and industrial space.

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