MF-R250-0-10-99

Resistance - Initial (Ri) (Min):	25 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.201" (5.10mm)
Thickness (Max):	--
Height - Seated (Max):	0.720" (18.30mm)
Size / Dimension:	0.472" L x 0.118" W (12.00mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	70 mOhms
Series:	Multifuse®, MF-R
Time to Trip:	10.3s
Current - Trip (It):	5A
Current - Hold (Ih) (Max):	2.5A
Current - Max:	40A
Voltage - Max:	30V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Not For New Designs
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses, when used properly, have become increasingly popular in the effective electronic protection of circuits. The MF-R250-0-10-99 is a type of PTC Resettable Fuse commonly used in both commercial and industrial applications. The MF-R250-0-10-99 offers a range of features that make it popular for use in numerous types of applications.At its core, the MF-R250-0-10-99 is a self-resetting fuse that works by blocking the flow of current when an overcurrent situation occurs. The current blocking is done by using a positive temperature coefficient (PTC) element that is designed to rapidly increase the resistance when it becomes too hot due to an overcurrent. This increase in resistance is what causes the fuse to "trip" and temporarily cut off the current to the circuit, thereby protecting it from further damage.Once the overcurrent is removed, the PTC element will cool down and return to its normal state. This will reset the fuse, allowing the circuit to become functional again. This is why the MF-R250-0-10-99 is able to reset itself typically without having to be replaced.The MF-R250-0-10-99 is also characterized by its compact design. Its dimensions are 0.8x0.5x0.2”, which allows it to be used in tight places. It also has an operating temperature range of -55°C to +125°C and a maximum rated voltage of 250V, making it suitable for numerous applications.The MF-R250-0-10-99 is capable of carrying a maximum rated current of 10A. In order to achieve this, the fuse is equipped with an epoxy-encapsulated housing that contains a melamine-coated iron chromium-nickel alloy wire. This wire is designed to melt away when the maximum current is exceeded, resulting in the flow of current being cut off and the protection of the circuit.The fuse also has a resistance value of 0.99 ohms, which helps it remain within the ideal range of 0.2-2 ohms that is typically required for optimal circuit protection. This allows the MF-R250-0-10-99 to offer solid protection in numerous commercial and industrial applications.In terms of application fields, the MF-R250-0-10-99 is commonly used in commercial and industrial applications such as telecom, power electronics, motors, and industrial lighting. It is also used in various types of consumer products such as computers, radios, and TV sets.In order to ensure safe and reliable operation, the MF-R250-0-10-99 must be installed properly and connected in accordance with the manufacturer’s instructions. It is important to note that the MF-R250-0-10-99 can be used for both AC and DC currents, so it should be specified during installation.When used properly, the MF-R250-0-10-99 can offer the reliable circuit protection that is needed in numerous types of applications. It is easy to install and capable of resetting itself when an overcurrent situation occurs, which offers added convenience and helps protect circuits from permanent damage. With its compact size and resistance value, the MF-R250-0-10-99 can be used in a wide range of commercial and industrial applications, making it a popular choice for many circuit protection needs.

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