LTP070F

Resistance - Initial (Ri) (Min):	100 mOhms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.047" (1.20mm)
Height - Seated (Max):	--
Size / Dimension:	1.417" L x 0.199" W (36.00mm x 5.05mm)
Package / Case:	Strap
Mounting Type:	User Defined
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	340 mOhms
Series:	PolySwitch®, LTP
Time to Trip:	5s
Current - Trip (It):	1.45A
Current - Hold (Ih) (Max):	700mA
Current - Max:	100A
Voltage - Max:	15V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses

PTC Resettable Fuses are a popular form of over-current protection in many electrical and electronic circuits. They provide a reliable means of protecting against over-heating and circuit overloads without offering a one-time-only protection, which can leave a circuit unprotected when the fuse element fails or needs to be replaced. The LTP070F Resettable Fuse is a great example of an effective and versatile resettable protection device.

LTP070F Application Field

The LTP070F is a glass encapsulated PTC resettable fuse, providing a fast and reliable current protection solution in a variety of applications. The fuses are most commonly used as a back-up protection in consumer electronics, telecommunications, vehicle electronics and other safety-critical applications. The device can also provide over-current protection from power surges, short circuits and over-heating and can be used as primary or secondaryprotection. Its glass encapsulation ensures a reliable level of environmental protection, making it suitable for a wide range of industries.

LTP070F Working Principle

The LTP070F Resettable Fuse is designed to reduce the power in the system when the current reaches or surpasses its rated current value. When this threshold is reached, the device trips and the current flow is reduced to a safe, predetermined level. This allows systems to keep operating while protecting against further power surges. The fuse can be reset by pressing an appropriate button (or automatically reset through an internal spring mechanism), actually triggering a break in the close loop circuit of the fuse, to allow current to start flowing again.

Advantages of the LTP070F

The LTP070F has numerous advantages compared to traditional fuses. Since the PTC resettable fuse is not subject to wear and tear, it can be used in multiple applications without the risk of losing protection. Furthermore, the device is extremely cost-effective and energy efficient, thanks to a low trigger current and a high insulation resistance. PTC Resettable Fuses have a wide range of operating temperatures, making them suited to a variety of environments. The device is also fast and easy to reset and replace, avoiding costly downtime and the need for frequent maintenance. Additionally, the use of glass encapsulation ensures the fuse is not subject to corrosion or emissions, increasing its lifespan and reliable performance.

Conclusion

The LTP070F is an effective and reliable PTC resettable fuse, offering robust current protection in a variety of regular and tough environments. Easy to reset and economical to maintain, the fuse can provide a much longer service life than that of a traditional fuse and presents a number of advantages. For these reasons, the LTP070F has been highly acclaimed in the electronics industry as an ideal current protection solution.

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