PTR030V0185-TR

Resistance - Initial (Ri) (Min):	30 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.197" (5.00mm)
Thickness (Max):	--
Height - Seated (Max):	0.618" (15.70mm)
Size / Dimension:	0.402" L x 0.118" W (10.20mm x 3.00mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	90 mOhms
Series:	PolyTron™, PTR030V
Time to Trip:	8.7s
Current - Trip (It):	3.7A
Current - Hold (Ih) (Max):	1.85A
Current - Max:	40A
Voltage - Max:	30V
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 are a type of circuit protection device that offers high-reliability protection against overpowering, short-circuiting, and other overloads. The PTC Resettable Fuse, such as PTR030V0185-TR, is a compact, non-damaging fuse that securely responds to the given overload protection. In order to provide optimum protection for the entire circuit, it has a unique design combining both positive temperature coefficient(PTC) and reverse action time delay fuses. This fuse is designed to offer both overcurrent and overvoltage protection, hence reducing the risk of permanent damage to the entire system.The working principle of a PTC Resettable Fuse, such as PTR030V0185-TR is based on the property of ceramics that is used as part of the fuse. This ceramic material has an inherent Positive Temperature Coefficient Property (PTC) that increases the resistor\'s resistance under current overload. When the current is above the rated limit for a certain amount of time, the PTC element is heated up and causes an increased resistance across the element, which in turn amplifies the rates of heat generation. This further increases the resistance until the circuit is completely shut off or until the current falls below the rated limit. The total amount of time it takes to completely shut down the circuit depends on the amount of current that is flowing through the element.One application field of the PTC Resettable Fuse is to protect delicate electronic components from overcurrent. It can be used in industrial applications, such as power and heater control systems, electrical motors and lights. It can also be used in everyday items like electric water heaters, or on wafer processes to protect the integrated circuits from overvoltage and overcurrent. The fuse has a compact design and operates at temperatures from -30°C to 85°C. It consists of two main parts, a fuse element composed of a PTC thermistor and a galvanically isolated resettable electronic switch. The switch will trigger when the current flowing through it reaches the predetermined upper limit. The two parts, a fuse element and an electronic switch intercept the current and will switch off the load when the current going through the elements rises above the rated value.The PTC Resettable Fuse can effectively protect the entire system from excessive current, since it has a threshold that trips at a lower temperature than the rated power of the components. It can also be used for controlling the time-delay of various electronic components. For instance, the PTR030V0185-TR can be used to protect against short circuits, overloads, and surges in electrical systems with high power or resistance.In conclusion, the PTC Resettable Fuse, such as PTR030V0185-TR is an effective protection solution that can protect the entire system from current overloads, short circuits, surges, and overvoltage protection. It can be used in high-power or highly resistant systems, as well as daily home appliances like water heaters. The fuse switches off the current to the load if the current rises above the rated value. Therefore, it prevents further damage of the system and protects all the electronics components from overheating and short circuiting.

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