Resistance - Initial (Ri) (Min):	4 Ohms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.126" (3.20mm)
Height - Seated (Max):	--
Size / Dimension:	0.240" L x 0.272" W (6.10mm x 6.90mm)
Package / Case:	2-SMD
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	12 Ohms
Series:	PolySwitch®, TS250
Time to Trip:	2s
Current - Trip (It):	260mA
Current - Hold (Ih) (Max):	130mA
Current - Max:	3A
Voltage - Max:	60V (250V 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 are a form of overcurrent protection. They provide protection for electrical and electronic equipment against AC and DC current surges and overloads. The TSV250-130F-B-0.5-2 is a type of PTC Resettable Fuse that has been specifically designed for applications with high current requirements.

Application Field

The TSV250-130F-B-0.5-2 PTC Resettable Fuse has a number of applications. It is suitable for use in appliances such as induction cookers, LCD/LED TVs, Hi-Fi systems, power adaptors, and various kinds of lighting equipment. The fuse is also suitable for electric tools such as drills, grinding machines, saws, cutters, etc. Moreover, it can be used as an effective protection against overvoltage and short-circuits in fixed voltage supplies, portable power-packs, inverter circuits, and more.

Working Principle

The PTC Resettable Fuses employ a unique construction which allows them to detect an overcurrent-surge and quickly open the circuit in order to prevent damage. When this happens, the PTC resettable fuse will sustain a current below the over-current setpoint which effectively functions as a short-circuit and a break in the current flow. This is how the fuse prevents high current surges from causing damage to the equipment.Once the current falls below the setpoint, the fuse will reset itself and can be re-used multiple times. This is beneficial as it eliminates the need to constantly replace these fuses, which would otherwise be necessary with traditional fuses. The resettable fuses offer a higher degree of reliability and low self-heating when compared to traditional fuses.The TSV250-130F-B-0.5-2 is a special type of PTC Resettable Fuse which combines a quick break time feature, a wide range of current ratings, and overcurrent protection. Its rating of 0.5-2A AC and 0.7-2.3A DC enables it to be used in both AC and DC circuits. Its high impact current providing a quick break time of < 10mS helps avoid circuit damage due to surges.

Advantages of PTC Resettable Fuses

The main advantage of using PTC Resettable Fuses is that it eliminates the need to frequently replace or replenish traditional or sacrificial fuses. This makes them ideal for applications that are subjected to frequent surges or current overloads. Furthermore, they provide enhanced safety and increased reliability through their highly effective over-current protection.The PTC Resettable Fuses are also compact and lightweight, which makes them ideal for applications with restricted space requirements. Additionally, they offer a wide range of operating temperature features, ranging from -55°C to 105 °C. This makes them suitable for use in both domestic and industrial environments such as for automotive or outdoor lighting applications.

Conclusion

The TSV250-130F-B-0.5-2 is an example of PTC Resettable Fuses, which combine a quick break time feature, a wide range of current ratings, and overcurrent protection. It is suitable for use in AC and DC circuits, and is particularly effective for applications that are subject to frequent surges or current overloads. Furthermore, it offers enhanced safety, increased reliability, and is highly compact and lightweight. As such, the TSV250-130F-B-0.5-2 is an ideal choice for applications that require robust protection from overvoltage and short circuits.

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