PFRA.160

Resistance - Initial (Ri) (Min):	55 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.201" (5.10mm)
Thickness (Max):	--
Height - Seated (Max):	0.661" (16.80mm)
Size / Dimension:	0.402" Dia x 0.118" W (10.20mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	150 mOhms
Series:	PFRA
Time to Trip:	8s
Current - Trip (It):	3.2A
Current - Hold (Ih) (Max):	1.6A
Current - Max:	40A
Voltage - Max:	30V
Type:	Polymeric
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction
The PTC Resetable Fuse, most commonly referred to as a PFRA 160, is a type of self-resetting over-current protection device that is used in systems where over-current or fault currents are likely to occur. The PFRA 160 is designed to respond quickly to these currents and will reset or trip itself open when the current reaches above a set threshold. It is a robust and reliable protection device that can be used in a wide variety of applications. This article will explain the function and principles of the PFRA 160 and will provide an overview of its applications.Working Principles of the PTC Resetable Fuse
The PFRA 160 works on the principle of a polymeric positive temperature coefficient (PPTC) device. These are components that are designed to detect and respond to changes in electrical current. When the current flowing through the device exceeds the preset threshold, the device will expand and open itself. When the current reduces back to normal levels, the device will contract and reset itself.The PFRA 160 is designed to be a one-time, self-resetting device. This means that the fuse will trip itself open once the current has exceeded the specified threshold and will remain open until manually reset. This feature makes it an ideal choice for applications where over-current protection is required and where the device may be required to reset itself during normal operation. Applications
The PFRA 160 has a broad range of applications due to its robust design and ability to reset itself. It is particularly suitable for use in applications where fault currents or other unexpected currents may suddenly occur. Such applications include power supplies, UPS systems, motor control systems and renewable energy systems such as solar and wind.The PFRA 160 is also suitable for other industrial applications where sensitive equipment may be damaged by high currents. In these applications, the PFRA 160 can provide an effective and reliable over-current protection solution.The PFRA 160 is also well suited for use in telecommunications, datacenter and IT equipment. It can provide an effective and dependable over-current protection solution and its self-resetting feature ensures that hardware and software is not damaged in the event of an unexpected fault current.Conclusion
The PTC Resetable Fuse, or PFRA 160, is a reliable and robust over-current protection solution that is suitable for a wide range of applications. It works on the principle of a polymeric positive temperature coefficient (PPTC) device, which allows it to respond quickly to changes in current and reset itself once the current returns to normal.The PFRA 160 is highly suitable for use in applications where sudden fault currents or other unexpected over-currents may occur. It can provide reliable over-current protection in power supplies, UPS systems, motor control systems, telecommunications and IT equipment, renewable energy systems and other industrial applications.Overall, the PTC Resetable Fuse, or PFRA 160, is a reliable and robust over-current protection solution that is suitable for a wide range of applications. It can provide an effective and dependable protection solution for applications where over-currents or fault currents may suddenly occur.

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