MF-SMDF200-2

Series:	Multifuse®, MF-SMDF
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Polymeric
Voltage - Max:	10V
Current - Max:	40A
Current - Hold (Ih) (Max):	2A
Current - Trip (It):	4A
Time to Trip:	2.4s
Resistance - Initial (Ri) (Min):	30 mOhms
Resistance - Post Trip (R1) (Max):	100 mOhms
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	2018 (5045 Metric), Concave
Size / Dimension:	0.200" L x 0.180" W (5.08mm x 4.58mm)
Height - Seated (Max):	--
Thickness (Max):	0.033" (0.85mm)
Lead Spacing:	--
Approvals:	--

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PTC Resettable Fuses

PTC resettable fuses, often referred to as polymeric positive temperature coefficient (PPTC) fuses, are specialized type of fuses used for over-current protection in applications such as audio/video equipment, computers, telecommunication systems, home appliances, automobile electronics, etc.A PPTC resettable fuse typically consists of two components: a switching element and a special polymer material. It is designed so that when it passes the maximum current allowed, the heat generated by the current flow causes a dramatic increase in the element\'s resistance, effectively dropping its current carrying capacity to zero and cutting off the device’s power. The element will then remain in the HIGH-resistance state until its temperature had dropped to a preset level. This is extremely useful in ensuring that the load does not automatically turn back ON after protection has been activated, preventing further damage to the device.The MF-SDMF200-2 is a 2 amp 240VAC resettable fuse with excellent response time, making it suitable for high-current applications. This product has a reset time of 22ms to 11ms when the current is cut off. With this response time, the MF-SDMF200-2 can quickly shut off over-current to protect the connected equipment and provide a reliable power supply.The MF-SDMF200-2 is a UL Recognized, SGS certified PTC resettable fuse with excellent over-current protection capabilities. It offers high current protection, fast response time, and excellent protection against over-voltage. Furthermore, the MF-SDMF200-2 has a small footprint and can fit into tight spaces. The product is also equipped with an LED indicator, which provides visual indication of current status.In addition to high current protection, the MF-SDMF200-2 also offers improved performance and reliability. The design of the product includes a metal oxide varistor (MOV) to detect and respond to over-voltage currents; once detected, the MOV rapidly redirects the over-voltage current away from the connected device, thus providing reliable protection from over-voltage surges.The working principle of the MF-SDMF200-2 is simple: when the clamp voltage is exceeded by a given amount, the MOV activates and quickly redirects the current away from the connected device. At the same time, the PTC resettable fuse senses the excessive current and triggers the controlled switching element to shut down the power. The device will then remain in the OFF state until cooled down, providing a reliable protection from over current.To sum up, the MF-SDMF200-2 is an excellent choice for over-current protection in applications such as audio/video equipment, computers, telecommunication systems, home appliances, automobile electronics, etc. This product offers high current protection, fast response time, and excellent protection against over-voltage. Moreover, the product is UL recognized, SGS certified, and equipped with an LED indicator that provides a visual indication of the fuse’s current status.

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