Polymer Positive Temperature Coefficient PPTC Resettable Fuses mSMD150-33V 1812 1.5A 33V For Overcurrent Protection

Polymer Positive Temperature Coefficient PPTC Resettable Fuses mSMD150-33V 1812 1.5A 33V For Overcurrent Protection

A traditional fuse will break open, and does not recover after the fault event is corrected. The fuse component has to be replaced for the circuit to function again. A PTC fuse is a special fuse that will reset after power is removed from the circuit. It is a temperature-dependent resistor or thermistor whose resistance rises with increasing temperature. A PTC fuse quickly increases its resistance as a response to an overcurrent, over-temperature, or short circuit situation, to restrict the current flow. PTCs enable the equipment to function, with extreme cases being the exception. Circuit designers select PTCs on occasions where maintaining user transparency or constant system uptime is at a premium.

Quicker trip: A PTC has lower thermal mass and heats up faster. It thus quickly trips into a high-resistance state.

Smaller size: PTC products occupy a smaller board area and are easier to integrate into package design.

Low initial resistance: PTCs make a more efficient transformer with their lower resistance.

No cycling: PTC devices remain in tripped state under fault conditions. PTCs have no arcing if there is a fault situation.

1.Performance Specification

Ihold = Hold Current. Maximum current device will not trip in 25°C still air.

Itrip = Trip Current. Minimum current at which the device will always trip in 25°C still air.

Vmax = Maximum operating voltage device can withstand without damage at rated current (Imax).

Imax = Maximum fault current device can withstand without damage at rated voltage (Vmax).

Pd = Power dissipation when device is in the tripped state in 25°C still air environment at rated voltage.

Rimin/max = Minimum/Maximum device resistance prior to tripping at 25°C.

R1max = Maximum device resistance is measured one hour post reflow.

CAUTION : Operation beyond the specified ratings may result in damage and possible arcing and flame.

2.Environmental Specifications

3.Ihold Versus Temperature

4.Tape & Reel Quantity

075L-60V 100L-60V 185L 200L-24V/33V 250L-30V 300L-24V/30V 400L-24V 500L 600L 700L 800L 1500PCS/reel

030L 050L 075L 100L 125L 200L 250L 260L 300L 400L 2000PCS/reel

Devices taped with reference to EIA481 standard.

Dongguan Ampfort Electronics Co., Ltd. is a high-tech enterprise specializing in R&D, manufacturing and sales, committed to becoming a comprehensive supplier of circuit protection components.

We introduced advanced quality system,management systems and high-precision automation equipment from Germany, set up multiple production bases and continue to increase product lines. Our team consist of experienced engineers, passionate business elites, and regularly trained skilled workers, which provides a solid foundation for quality assurance and productivity performance. Moreover, our products have passed safety certifications of many countries and are favored by many consumers by years’ unremitting efforts.

We cooperated with universities and colleges, and will continue to research and develop new products , committed to high-quality circuit protection solutions, and provide global customers with efficient technology, products, and testing support to meet their requirements for rapid development of new products. We are gradually updating from "Made In China" to "Created In China" and to "Intelligent Manufacturing In China", from circuit design to product testing, we will provide you with one-stop service in the field of circuit protection.After years of intensive cultivation, we have maintained a good relationship with our peers and have become distributor of many famous electronic component brands to meet the diverse needs of customers.

The main products include: Thermistors, Varistors, Temperature Sensors, Fuses and corresponding Hardware and Plastic accessories, Inductors, Thermal Protector, Overload/Composite Protectors, Discharge Tubes, Photoresistors and Wiring Harnesses etc. Through the combination of different process devices,Ampfort Electronics can meet customers' individual circuit protection requirements. Our products are widely used in: power adapters, switching power supplies, chargers, transformers, computers, telephones, household appliances, communication products, lighting products, toy products, various instruments and various electronic cables, electrical products, IT, Consumer electronics, automobiles, batteries and other fields.

Choose us, Ampfort will be your loyal and reliable partner for protection circuit products !

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