MICROSMD150F-2

Resistance - Initial (Ri) (Min):	40 mOhms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.048" (1.22mm)
Height - Seated (Max):	--
Size / Dimension:	0.127" L x 0.102" W (3.22mm x 2.58mm)
Package / Case:	1210 (3225 Metric), Concave
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	110 mOhms
Series:	PolySwitch®, microSMD
Time to Trip:	1s
Current - Trip (It):	3A
Current - Hold (Ih) (Max):	1.5A
Current - Max:	40A
Voltage - Max:	6V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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PTC Resettable Fuses: MICROSMD150F-2 Application Field and Working PrinciplePTC Resettable Fuses, also known as polyfuse, are dynamic overcurrent protection devices that represent a safe, efficient and cost-effective option for a variety of electronic systems. PTC fuses detect overcurrent conditions quickly and accurately, and are reset by simply removing the overcurrent. They offer a cost-effective solution for power protection in various types of applications and can be used in place of thermal breakers, thermal protectors or electromagnetic fuses.One type of PTC Resettable Fuses is the MICROSMD150F-2, which is a self-resetting fuse that has a working voltage of 150VDC, a breaking capacity of 4kA, and operating temperatures ranging from -40°C to +85°C. Its overcurrent range is typically from approximately 0.2A to 15A.The MICROSMD150F-2 fuse is used in a variety of applications, including "wall-wart" AC/DC power supplies, consumer electronics, automotive and industrial controls. The device is able to quickly detect and reset overloads, thereby helping to prevent sudden system shutdowns and costly component replacements.The working principle of the MICROSMD150F-2 fuse is quite simple. When a load circuit draws current, the resistance of the fuse increases exponentially. This leads to a rapid increase in temperature, which is monitored by a thermistor element on the fuse. Once the temperature reaches the melting point, the thermistor opens the circuit, breaking the connection between the fuse elements and the power source.The device is then reset by simply removing the overcurrent. Once the thermistor cools down, the contact points of the elements close, restoring the circuit and allowing current to flow freely. The MICROSMD150F-2 is designed to be resistant to corrosion and high temperatures, making it a reliable choice for many different types of applications.The MICROSMD150F-2 fuse provides a number of benefits for applications where space is at a premium. The device is a "plug-and-play" component, meaning that it can be quickly and easily installed in any system without any additional wiring or tools. In addition, the device is designed to provide stability in challenging temperature environments as well as a longer working life.Overall, the MICROSMD150F-2 fuse is a reliable and cost-effective solution for power protection in a variety of applications. Its ability to quickly detect and reset overloads helps to protect systems from sudden shutdowns and expensive repairs. The device is also easy to install and is designed to provide long-term stability and reliability in a wide range of temperatures. This makes the MICROSMD150F-2 an excellent choice for protecting electronics from damage due to overcurrents.

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