PTGL12AR0R2M1B51A0

Resistance - 25°C (Typ):	200 mOhms
Approvals:	--
Lead Spacing:	0.197" (5.00mm)
Thickness (Max):	--
Height - Seated (Max):	0.630" (16.00mm)
Size / Dimension:	0.445" Dia x 0.138" T (11.30mm x 3.50mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-10°C ~ 60°C
Series:	POSISTOR®, PTGL
Current - Trip (It):	2.41A
Current - Hold (Ih) (Max):	1.3A
Current - Max:	9A
Voltage - Max:	16V
Type:	Ceramic
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	--

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PTC Resettable Fuses: Application Field and Working Principle

PTC (positive temperature coefficient) resettable fuses are devices designed to protect electronic circuits against over-current and over-temperature faults. They are widely used in battery-powered circuits, power supplies, motors and other industrial applications. The PTGL12AR0R2M1B51A0 is a particularly popular resettable fuse due to its compact size, excellent heat dissipation and high surge energy.The working principle of a PTC resettable fuse involves a combination of positive temperature coefficients and negative temperature coefficients. PTC resettable fuses are made of a thermally sensitive ceramic material that has two temperature coefficients parameters: a positive temperature coefficient and a negative temperature coefficient. The positive temperature coefficient parameter determines the fuse\'s threshold current at a given temperature, and the negative temperature coefficient parameter determines the rate at which the fuse will open if the current exceeds the threshold.When a normal current passes through the PTC resettable fuse, the ceramic material within it remains cool. But if the current rises above its threshold level, the heat generated will cause a rapid increase in the ceramic material\'s electrical resistance. This rapid rise in resistance will cause the fuse to open, breaking the circuit and protecting it from over-current and over-temperature conditions.The PTGL12AR0R2M1B51A0 has a rated voltage of 12 V and a rated current of 2 A. It is able to handle surges or transients of up to 5.1 A and has a fast response time of around 1 ms. The device also has excellent temperature stability over a wide range of temperatures. This makes it ideal for use in battery-powered circuits, power supplies, motors and other industrial applications.The PTGL12AR0R2M1B51A0 is highly reliable and robust. Its PCB (printed circuit board) mounting system ensures that it can be easily installed and replaced. It has a relatively low cost and is relatively easy to use. Furthermore, its compact size allows it to fit into a range of different applications. The PTGL12AR0R2M1B51A0 is effective in preventing over-current and over-temperature conditions in a variety of different applications. Its fast response time and excellent temperature stability make it ideal for battery-operated circuits, power supplies, motors and other industrial equipment. Its PCB mounting system ensures that it is easy to install and replace, while its low-cost and high-reliability make it a popular choice in a range of different applications.

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