2920L400/15MR

Resistance - Initial (Ri) (Min):	10 mOhms
Approvals:	cURus, TUV
Lead Spacing:	--
Thickness (Max):	0.063" (1.60mm)
Height - Seated (Max):	--
Size / Dimension:	0.290" L x 0.202" W (7.36mm x 5.12mm)
Package / Case:	2920 (7351 Metric), Concave
Mounting Type:	Surface Mount
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	40 mOhms
Series:	POLY-FUSE®, 2920L
Time to Trip:	4s
Current - Trip (It):	8A
Current - Hold (Ih) (Max):	4A
Current - Max:	40A
Voltage - Max:	15V
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 - 2920L400/15MR - Application Field and Working Principle

Polymeric Positive Temperature Coefficient (PPTC) devices, also known as PolySwitch Resettable fuses, are a form of overcurrent protection designed to protect the host device from being damaged by over-current events. The 2920L400/15MR PTC from Multi-Tech Systems Inc. is a PPTC device used to protect against short circuit faults in circuits. It has a maximum current rating of 15A and can be operated from a minimum temperature of −40°C up to a maximum of +85°C.PPTC devices work by sensing the current flowing through them and limiting the current if it exceeds their over-current rating. The PPTC device consists of a small turn chip with a polymeric resistor embedded in it. When current is passed through the chip, it produces heat, which in turn increases the temperature of the chip. The increase in temperature causes the polymeric resistor to expand, which increases the resistance in the PPTC and reduces the current flowing through it. This limits the current to a safe level and prevents further damage to the circuit.The 2920L400/15MR PTC device can also be used for a variety of applications such as power supplies, circuit breaker panels, motor controllers and USB ports. It is designed to protect against both short circuit and overload faults, which is important as it helps to protect the equipment from being damaged during power surges.The 2920L400/15MR is also easy to install and includes instructions for use. It is designed to be used with a variety of electrical grids, including AC/DC and isolated power supplies. It also features an automatic reset feature which ensures that the PPTC device will reset itself once the fault condition has cleared, and the device will become operational again.PPTC devices are an effective way to protect your circuitry from failure. They provide short-circuit and overload protection, and help to reduce the risk of fire and damage to connected equipment. By using the 2920L400/15MR PTC, you can ensure that your circuits are efficiently and safely protected from over-current events.

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