MINISMDC014F-2 Circuit Protection

Resistance - Initial (Ri) (Min):	1.5 Ohms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.035" (0.89mm)
Height - Seated (Max):	--
Size / Dimension:	0.179" L x 0.128" W (4.55mm x 3.24mm)
Package / Case:	1812 (4532 Metric), Concave
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	6 Ohms
Series:	PolySwitch®, miniSMD
Time to Trip:	8ms
Current - Trip (It):	280mA
Current - Hold (Ih) (Max):	140mA
Current - Max:	10A
Voltage - Max:	60V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction

PTC Resettable Fuses (Polymeric Positive Temperature Coefficient Resettable Fuses) are considered to be one of the more revolutionary developments in circuit protection technology. They are generally used in applications where an overload or short circuit needs to be prevented but the product needs to be reset in order to function again. The MINISMDC014F-2 is a PTC Resettable Fuse that can be used in many different electronic applications. This article will discuss the application field and working principle of the MINISMDC014F-2.

Application Field

The MINISMDC014F-2 PTC Resettable Fuse is designed for applications where a maximum of 14A (10A nominal) can be safely handled. It is suitable for both AC and DC circuits and is available in various current ratings. It can be used in a wide range of applications including automotive, consumer and commercial electronics.The MINISMDC014F-2 PTC Resettable Fuse is ideal for use in systems that require short circuit protection, such as automotive applications. It can protect devices against hazardous currents, as well as prevent potentially damaging runaway current conditions. It can also be used in products that require over-voltage protection, as the PTC Resettable Fuse is able to provide over-voltage protection and degradation in a single component.Additionally, the MINISMDC014F-2 PTC Resettable Fuse can be used in a variety of applications where component size is critical. Its small size ensures it does not take up much space, making it ideal for systems where space is at a premium.

Working Principle

PTC Resettable Fuses work on the principle of a polymeric positive temperature coefficient (PPTC). When a PTC Resettable Fuse is exposed to a large surge in current, the thermistor inside the device begins to heat up. This causes an increase in the resistance of the thermistor, which in turn causes an increase in the resistance of the entire fuse. This increase in resistance works to reduce the amount of current flowing through the fuse, effectively protecting the system from an overload or short circuit.The thermistor inside the PTC Resettable Fuse will reset itself once the over-current condition has been removed. Once the thermistor has cooled down, its resistance will decrease, allowing the current to flow freely again. This resetting aspect of PTC Resettable Fuses makes them a very attractive choice for many electronic applications.

Conclusion

The MINISMDC014F-2 PTC Resettable Fuse is an excellent choice for many electronic applications, providing reliable short circuit and over-voltage protection. Its small size and ability to reset itself make it ideal for systems where space and operation are both at a premium. Understanding its application field and working principle are key to selecting the best PTC Resettable Fuse for the job.

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