PTR030V0090-BK1

Resistance - Initial (Ri) (Min):	70 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.197" (5.00mm)
Thickness (Max):	--
Height - Seated (Max):	0.480" (12.20mm)
Size / Dimension:	0.291" L x 0.118" W (7.40mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	220 mOhms
Series:	PolyTron™, PTR030V
Time to Trip:	5.9s
Current - Trip (It):	1.8A
Current - Hold (Ih) (Max):	900mA
Current - Max:	40A
Voltage - Max:	30V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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PTC Resettable Fuses

PTC (Positive Temperature Coefficient) resettable fuses are devices that provide a form of protection for circuit elements, such as power supplies, cables, motor controls, and other components of an electrical system. These fuses do not need to be replaced after every circuit overcurrent event, as they are self-resetting devices. They are used when the primary goal of an individual circuit is to protect its components or users from electrical overcurrents by limiting current flow and then function to automatically reset itself when the fault or overload scenario has been eliminated.PTR030V0090-BK1 is an example of a PTC resettable fuse, which is currently one of the most popular in the market. It is typically adopted by different kinds of electronic products in numerous applications, ranging from computers to automobiles. This particular fuse features a wide operating temperature range from -30℃ to 130℃, excellent response rate, and high current-carrying capability of 30V and 90A.The purpose of PTC resettable fuses is to protect sensitive circuit components from inrush currents, surges, overloads, fault currents, and also from short circuits. It is often used as an over-current protection device in addition to circuit breakers or fuses. The working principle of PTR030V0090-BK1 is simple. It basically acts as an adjustable breaker comprised of two components, a resistive element and an integrating element. The resistive element limits the maximum current, while the integrating element limits the duration of the current.When the inrush current or the current due to a short circuit reaches the preset level, the resistive element allows a fixed level of current to travel through the device, while the integrating element starts to draw more current as the current continues to pass through. This causes a thermal rise on the device, resulting in overload protection. Once the integrated current level has been reached the circuit will automatically reset or self-extinguish itself.The high current-carrying capability of the PTR030V0090-BK1, along with its wide operating temperature range, is why this particular device has become so popular in the industry. Additionally, its fault current rating of 90A also ensures that it can handle even high-current inrush and short circuit events with ease. This makes it a suitable choice for numerous applications, such as automotive, electronic circuits, power supplies, medical devices, and more.PTC resettable fuses are not limited to the PTR030V0090-BK1 device. Many manufacturers offer different types of PTC fuse products based on specific requirements. This includes fast-acting PTC fuses, PTC resettable fuses with self-limiting elements, and PTC resettable fuses with thermal shutdown elements. All of these fuses provide superior level protection and can be used in various applications.In conclusion, PTC resettable fuses are essential components used in a wide variety of applications to provide circuit protection. By limiting both the inrush and overload currents, these devices safeguard the valuable components of an electrical system or circuit. The PTR030V0090-BK1 PTC resettable fuse is an excellent example of these devices and is often used to protect electronic equipment from electrical overcurrents.

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