CL20 100120 Circuit Protection

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Voltage - Max:	480V
Moisture Sensitivity Level (MSL):	--
Current - Max:	400mA
Current - Trip (It):	800mA
Resistance - 25°C (Typ):	10 Ohms
Operating Temperature:	--
Ratings:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Disc
Size / Dimension:	0.866" Dia x 0.236" T (22.00mm x 6.00mm)
Height - Seated (Max):	--
Lead Spacing:	0.307" (7.80mm)
Approvals:	--

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Introduction

PTC (positive temperature coefficient) resettable fuses, otherwise known as PPTC (polymeric positive temperature coefficient) resettable fuses, is a type of temperature-sensitive semiconductor device that helps protect circuits from electrical overloads by providing an electrical path for excess current when the current exceeds the set rating of the fuse. PTC resettable fuses are also known as “self-healing” fuses because they will reset themselves automatically in the event of an overload or surge of electrical current. The CL20 100120 is one of the most popular types of PTC resettable fuses used in a wide range of applications.

Application Field

The CL20 100120 PTC resettable fuse is a low-resistance protection device that is used in a wide variety of applications. It is used in consumer electronics, computer peripherals, household appliances, automotive electronics, industrial control systems, and circuit protection devices. The CL20 100120 is also used in various types of medical equipment, such as defibrillators, to provide overcurrent protection. The CL20 100120 can be used in power supplies, electronic equipment, and circuit boards. It is also used in a variety of commercial applications, including industrial motors, solar photovoltaic (PV) inverters, telecommunications equipment, and LED drivers. The fuse has a small size and can be mounted directly on the PCB. The CL20 100120 is also used in LED lighting fixtures and power strips, providing good protection against short circuits and overloads.

Working Principle

The CL20 100120 PTC resettable fuses are composed of a special type of polymer. This polymer is designed to increase its resistance when exposed to excessively high levels of current. This increase in resistance limits the amount of current that can pass through the fuse, thus preventing an overload. When the current is below the rated limit, the polymer in the CL20 100120 PTC resettable fuse has a low resistance. This allows the current to pass through the fuse, allowing the device to remain functional. When the current exceeds the maximum rated current, the polymer in the fuse begins to increase its resistance, limiting the current and minimizing the risk of damage to the protected circuit. The CL20 100120 can be used in a wide variety of applications as it provides accurate current limiting capability. The device has a high reset capability, ensuring that the fuse will reset itself after the overcurrent condition has been corrected. The fuse is also highly reliable, providing a long service life under normal operating conditions.

Conclusion

The CL20 100120 PTC resettable fuse is a reliable and effective protection device that can be used in a wide variety of applications. The fuse has a low resistance when operating at normal current levels and increases its resistance to protect against overloads and surges. The fuse is accurate, reliable, and provides a long service life. PTC resettable fuses are essential components of modern electrical systems, providing circuit protection and ensuring the safety of users and equipment.

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Part Number	Manufacturer	Price	Quantity	Description