PFMD.050.2

Resistance - Initial (Ri) (Min):	150 mOhms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.033" (0.85mm)
Height - Seated (Max):	--
Size / Dimension:	0.179" L x 0.121" W (4.55mm x 3.07mm)
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	1 Ohms
Series:	PFMD
Time to Trip:	150ms
Current - Trip (It):	1A
Current - Hold (Ih) (Max):	500mA
Current - Max:	100A
Voltage - Max:	15V
Type:	Polymeric
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses

PTC resettable fuses, also known as Polyfuse, are over-current protection devices. Unlike traditional fuses, PTC resettable fuses are able to reset and provide over-current protection multiple times. This functionality is due to its unique construction which enables it to increase in internal resistance when too much current passes through the component. This increase in resistance reduces the current flow until it is below the maximum threshold, thus resetting the component. PFMD.050.2 is one type of PTC fuse. It is widely used in industries because of its quick response time, flexibility, convenience, and efficiency. This type of fuse has a nominal voltage of 250V and a maximum current of 6amps. The tolerance is within ±50% and contact resistance is less than 50mΩ. The PFMD series fuses share common features like low power consumption, low temperature coefficient, and long cycle life. The unique construction of a PTC resettable fuse consists of two main components: a semiconductor material and a resistive element. The semiconductor material is used to control the trip temperature, and it must be capable of withstanding the voltages used for the application. The resistive element is used to control the trip time, and it must also be able to withstand high temperatures without melting.When an over-current occurs, the internal resistance of the PFMD.050.2 increases and the temperature rises quickly. This increase in resistance reduces the current until it is below the maximum threshold. When the current is back to its normal level, the temperature reduces and the internal resistance returns to its original value. This allows the circuit to be energized again and repeat the process if an over-current is detected in the future. Due to its low power consumption, the PFMD.050.2 can be used in applications with a limited power source such as a battery operated device. Its long cycle life allows it to reset multiple times, giving it a longer lifespan than traditional fuses. The low temperature coefficient enables the device to operate within a wide temperature range, making it perfect for applications that need to operate in different environmental conditions.Overall, PTC resettable fuses provide a versatile and reliable solution for protecting devices, systems, and circuits from over-current. The PFMD.050.2 fuse offers advantages like quick response time, low power consumption, and flexibility in terms of usage temperature, which makes it the ideal choice for many applications.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description