0ZCF0300BF2C Circuit Protection

Series:	0ZCF
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Polymeric
Voltage - Max:	24V
Current - Max:	100A
Current - Hold (Ih) (Max):	3A
Current - Trip (It):	5.2A
Time to Trip:	20s
Resistance - Initial (Ri) (Min):	10 mOhms
Resistance - Post Trip (R1) (Max):	48 mOhms
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Mounting Type:	Surface Mount
Package / Case:	2920 (7351 Metric), Concave
Size / Dimension:	0.290" L x 0.202" W (7.36mm x 5.12mm)
Height - Seated (Max):	--
Thickness (Max):	0.067" (1.70mm)
Lead Spacing:	--
Approvals:	cURus, TUV

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PTC Resettable Fuses

PTC Resettable Fuses are a form of fuses that can be reset or re-energised after each over-current event. They are sometimes called Polymeric Positive Temperature Coefficient (PPTC) fuses, or simply PTC fuses. PTC fuses are becoming increasingly popular in powering electronics from mobile phones to gaming consoles as well as other consumer and industrial applications.The basic concept behind a PTC Resettable Fuse is the same as other types of fuses. During normal operation, the fuse acts like a switch and is open. Once the current flowing through the fuse exceeds its rated value, the temperature of the fuse increases and its electrical resistance increases sharply. This causes the fuse to basically "trip" itself, creating an open circuit so current cannot flow.

0ZCF0300BF2C Application Field and Working Principle

The 0ZCF0300BF2C PTC Resettable Fuse is specifically designed for use in mobile phones, laptops, power supplies, gaming consoles, and other consumer digital products as a protective device. It is a medium size PTC Resettable Fuse designed to protect up to 800mA. It is a one-time PTC fuse with arc protection and features a current limit of 0.3A in an external plastic case.The working principle of the 0ZCF0300BF2C PTC Resettable Fuse is quite simple. It is composed of a special polymer material and is encased in a plastic shell. The material has a positive temperature coefficient characteristic, which means that it increases its resistance as its temperature increases. When the current flowing through the PTC Resettable Fuse exceeds its rated value, the temperature of the fuse increases and its electrical resistance increases sharply, thereby causing the fuse to trip and create an open circuit so current cannot flow. Once the current has been stopped, the fuse will cool down and reset itself. The 0ZCF0300BF2C PTC Resettable Fuse allows easy, effective protection against overloads and is highly reliable. It has a high breaking capacity and offers fast tripping. Its tripping time is also relatively short compared to other fuses, which is an advantage in terms of quickly detecting and stopping potentially hazardous current overboard. Furthermore, the 0ZCF0300BF2C PTC Resettable Fuse is relatively cheap and easy to use, making it an attractive choice for use in consumer electronics.

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