MF-RHT300-AP

Resistance - Initial (Ri) (Min):	33 mOhms
Approvals:	--
Lead Spacing:	0.201" (5.10mm)
Thickness (Max):	--
Height - Seated (Max):	0.543" (13.80mm)
Size / Dimension:	0.346" L x 0.118" W (8.80mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	AEC-Q200
Operating Temperature:	-40°C ~ 125°C
Resistance - Post Trip (R1) (Max):	79 mOhms
Series:	Multifuse®, MF-RHT
Time to Trip:	5s
Current - Trip (It):	6A
Current - Hold (Ih) (Max):	3A
Current - Max:	100A
Voltage - Max:	16V
Moisture Sensitivity Level (MSL):	--
Type:	Polymeric
Lead Free Status / RoHS Status:	--
Part Status:	Active

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PTC Resettable FusesPTC Resettable Fuses are popularly used in a range of applications. They are designed to automatically detect and respond to current over-load conditions. Resettable fuses are made from positive temperature coefficient materials (PTC) such as polymeric materials and ceramics. When exposed to a current over-load, the PTC material changes its characteristics and becomes a higher temperature material than its original temperature. The increased temperature causes current disruption and thus provides current limiting protection for the device or circuit.The most common type of resettable fuse is the Multi-Functional Remote Heating Thermal 300-AP (MF-RHT300-AP) fuse. The MF-RHT300-AP is designed to protect power electronics against over-current conditions typically experienced in power supplies, regulated loads and motor drives. It utilizes a compact, single heat sinked construction which provides better thermal management and improved reliability.The MF-RHT300-AP operates by thermo-magnetic tripping. The MF-RHT300-AP utilizes two separate but connected elements; 1) a PTC element and 2) a Magnetic element. When exposed to an over-current condition the PTC element will heat up, causing the magnetic element to actuate and open the circuit. The fuse will reset and close the circuit when the overload condition is no longer present and the temperature of the PTC element has cooled to a safe level.The MF-RHT300-AP also features a unique design which is capable of providing multiple reset cycles. This feature eliminates the need for manual resetting in many applications. The MF-RHT300-AP also offers superior protection and low level performance. It is capable of withstanding continuous currents up to 50 amps and faults up to 300 amps.The MF-RHT300-AP is ideal for use in a wide range of applications including motor drives, drive-by-wire systems, bench top DC power supplies, regulated loads and power train applications. It is also suitable for protecting electronic circuit boards from high energy transients.In conclusion, the MF-RHT300-AP is a highly reliable and durable resettable fuse which provides superior protection against over-current conditions. Its unique design makes it suitable for use in a variety of applications and it is capable of providing multiple reset cycles. This makes it the ideal choice for industry professionals looking for a reliable and effective solution to protect their electronic device or systems against over-current conditions.

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