TSM600-250F-RA-2

Resistance - Initial (Ri) (Min):	1 Ohms
Approvals:	CSA, UL
Lead Spacing:	--
Thickness (Max):	0.461" (11.70mm)
Height - Seated (Max):	--
Size / Dimension:	0.681" L x 0.425" W (17.30mm x 10.80mm)
Package / Case:	4-SMD
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	5 Ohms
Series:	PolySwitch®, TSM
Time to Trip:	6s
Current - Trip (It):	860mA
Current - Hold (Ih) (Max):	250mA
Current - Max:	3A
Voltage - Max:	250V (600V Int)
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

PTC Resettable Fuses (Positive Temperature Coefficient Resettable Fuses) are an advanced form of circuit protection that offers over-current protection with the added value of resettability. This means that, unlike traditional fuses, PTC Resettable Fuses can be reset after tripping, without having to replace the fuse. This makes them ideal for applications that require reliable protection against overloads and short-circuits, without the need to replace the fuse each time it trips.The TSM600-250F-RA-2 is a type of PTC Resettable Fuse. It is rated for a maximum current of 600A and has a maximum voltage of 250VAC. It is specifically designed for applications where high-current capacity and a wide operating temperature range are required, such as in solar power systems, battery charging systems, switching power supplies, and industrial automation.The working principle of a PTC Resettable Fuse is simple. It utilizes a polymer material, known as a PTC, which has a positive temperature coefficient. This means that as the temperature increases, the material\'s resistance increases as well. In a PTC Resettable Fuse, this material is utilized in such a way that, when a current higher than its rated value flows through it, the temperature of the PTC will rise and its resistance will increase, causing a reduction in current. This trips the fuse, thus protecting the circuit from an overload or short-circuit. As soon as the current is reduced to a safe level, the temperature of the material will cool and the resistance will drop, resetting the fuse.The TSM600-250F-RA-2 is specifically designed to offer reliable circuit protection in high-current applications over a wide range of operating temperatures. It has an extended current-carrying capacity at elevated temperatures, allowing it to protect circuits from overloads and short-circuits in harsh environmental conditions. It has a variety of features that make it suitable for these applications, such as a thermally activated switch, a rugged construction and an integrated heat sink to dissipate heat. It also features an LED indicator that indicates when the fuse has tripped.The TSM600-250F-RA-2 is a versatile and reliable solution for applications that require high-current circuit protection over a wide range of temperatures. Its advanced design and features make it an ideal choice for solar power systems, battery charging systems, switching power supplies and industrial automation.

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