PFRA.800

Resistance - Initial (Ri) (Min):	5 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.402" (10.20mm)
Thickness (Max):	--
Height - Seated (Max):	1.295" (32.90mm)
Size / Dimension:	0.953" L x 0.118" W (24.20mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	30 mOhms
Series:	PFRA
Time to Trip:	18.8s
Current - Trip (It):	16A
Current - Hold (Ih) (Max):	8A
Current - Max:	40A
Voltage - Max:	30V
Type:	Polymeric
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

PTC Resettable Fuses are popular protection devices that are widely used in many applications. The PTC Resettable Fuses are made of Poly Vinyl Chloride (PVC). They feature a unique polymerized composition that is resistant to temperature and voltage fluctuations. The current carrying capacity of these fuses is greater than standard fuses, and they also provide superior safety. They are available in various sizes, shapes and voltage ratings.The most popular PTC Resettable Fuses are the PFRA 800 series. These fuses have high current carrying capacity, making them the ideal choice for high density and low power applications. They are also reversible, which allows them to be used in applications with reverse polarity. The PFRA 800 series also provide protection against power surges and are UL listed.

PFRA.800 Application Field and Working Principle

The PFRA.800 series PTC Resettable Fuses are designed for a wide range of applications, including industrial electronics, consumer electronics, and automotive electronics. They are also widely used in power supplies, motors, and other high-power electronic applications.The main function of the PFRA.800 series is to protect circuits from over-current. They are designed with a unique polymerized composition which is resistant to temperature and voltage fluctuations. This makes them extremely reliable and provides superior protection.The fuse consists of a two-wire plug and an element composed of a ceramic body and a metal or conductive polymer element. When the current through an electrical device reaches too high of a level, the element expands rapidly, blocking current from passing through the device. The circuit is thus protected from over-current and the fuse “resets” by being unplugged.The PFRA.800 series also provide over-voltage protection, which can be very important for devices that are prone to power surges. The ceramic body of the fuse contains a circuit breaker which is triggered when the voltage reaches too high of a level. This cuts off power to the device, preventing damage to the circuit.The PFRA.800 series are available in different sizes, shapes and voltage ratings to fit the needs of most applications. They can also be customized for highly specialized applications.

Conclusion

The PFRA.800 series PTC Resettable Fuses are perfect for a wide range of applications due to their robust construction and high current carrying capacity. They provide superior protection from power surges and overloads which can cause significant damage to circuits and other components.The simple two-wire plug design and ability to reset the fuse after use makes them a great choice for applications where safety is of utmost importance. The different sizes, shapes and voltage ratings allow these fuses to be used in many applications. For highly specialized applications, they can be customized as well.

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