PFMU.110.2

Resistance - Initial (Ri) (Min):	50 mOhms
Approvals:	CSA, TUV, UL
Lead Spacing:	--
Thickness (Max):	0.024" (0.62mm)
Height - Seated (Max):	--
Size / Dimension:	0.127" L x 0.101" W (3.22mm x 2.56mm)
Package / Case:	1210 (3225 Metric)
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	210 mOhms
Series:	PFMU
Time to Trip:	100ms
Current - Trip (It):	2.2A
Current - Hold (Ih) (Max):	1.1A
Current - Max:	40A
Voltage - Max:	6V
Type:	Polymeric
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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<p>PTC Resettable Fuses, also known as polymeric positive temperature coefficient (PPTC), are a type of self-resetting fuse, meaning that when an unexpected overcurrent-related event occurs, the fuse will automatically react, reducing the amount of current flowing through the circuit. In many cases, the resetting time of the fuse can be adjusted by the user, which is a very useful feature for protecting sensitive electronic components. PTC Resettable Fuses are used in a variety of applications, including automotive, consumer electronics, industrial, networking, and medical applications.</p> <p>One such PTC Resettable Fuse is the PFMU.110.2, a thermally protected polymeric positive temperature coefficient fuse. This device features a trip time of just one millisecond and is designed to protect against power surges, short-term overloads, and DC to AC overloads. Additionally, the PFMU.110.2 provides protection against adverse environmental conditions, including vibration, dust, and moisture. Its small size, low cost, and auto-resetting capability make it an ideal choice for applications that require overcurrent protection.</p> <p>The PFMU.110.2 works by utilizing a bi-metallic strip that is connected in parallel with the load. The strip will take on a higher resistance when the load exceeds a pre-set limit, resulting in a reduction in current flow. When the current is reduced to a safe level, a reset mechanism is activated which reduces the resistance of the strip and allows for normal current flow to resume.</p> <p>The PFMU.110.2 also has a wide operating temperature range, from -20 Celsius to +150 Celsius. Its ability to resist vibration and dust makes it an ideal choice for applications where these elements may be present. In addition, the PFMU.110.2 is RoHS (Restriction of Hazardous Substances) compliant and can be used in accordance with the European Union’s WEEE directive, which sets regulations for the disposal of electrical and electronic equipment.</p> <p>The PFMU.110.2 can be used in automotive, consumer electronics, industrial, networking, and medical applications, as it is designed to provide overcurrent protection. Automotive applications include starter and accessory equipment, electronic control units, electric motors, power windows, and battery chargers.</p> <p>The PFMU.110.2 can also be used to protect consumer electronics from power surges, such as in computers, electronic appliances, cell phones, gaming systems, and more. It is also suitable for use in industrial applications, such as solar inverters, motor drives, AC/DC converters, welding equipment, and lighting fixtures.</p> <p>The PFMU.110.2 is also an ideal solution for networking applications, such as routers, switches, and modems. Finally, the device can be used to protect medical equipment from overcurrent occurrences, such as ventilators, monitors, and other electro-medical equipment.</p> <p>The PFMU.110.2 is a reliable and cost-effective PTC Resettable Fuse that can be used for a variety of applications. Its small size and auto-resetting function make it perfect for protecting sensitive electronic components from dangerous overcurrent conditions. Furthermore, its wide operating temperature range, dust and vibration resistance, and RoHS compliance make it an ideal choice for both automotive and other types of applications.</p>

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