PTR016V1200-TR

Resistance - Initial (Ri) (Min):	3 mOhms
Approvals:	cURus, TUV
Lead Spacing:	0.394" (10.00mm)
Thickness (Max):	--
Height - Seated (Max):	1.102" (28.00mm)
Size / Dimension:	0.689" L x 0.122" W (17.50mm x 3.10mm)
Package / Case:	Radial, Disc
Mounting Type:	Through Hole
Ratings:	--
Operating Temperature:	-40°C ~ 85°C
Resistance - Post Trip (R1) (Max):	9 mOhms
Series:	PolyTron™, PTR016V
Time to Trip:	7.5s
Current - Trip (It):	20.4A
Current - Hold (Ih) (Max):	12A
Current - Max:	100A
Voltage - Max:	16V
Type:	Polymeric
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction of PTC Resettable Fuses

PTC resettable fuses are electrical components made of specialized thermistor materials capable of resetting themselves after an overload current has been reduced. These devices can be used to regulate the flow of current between two connected electrical systems. They are often used in automotive, industrial, telecom and military applications.

PTR016V1200-TR

The PTR016V1200-TR is a resettable fuse type specifically designed for military applications. It has an overload current of 16A, which is reset at 12V under nominal conditions. The device has a low circuit resistance of 0.11 Ohms and a fast-acting thermal response. It is capable of resetting itself after experiencing an overload current.

PTR016V1200-TR Application Field and Working Principle

The PTR016V1200-TR is suited for high-current applications in severe operating environments such as military and vehicular systems, in which reliable protection against shorts and overcurrent surges must be ensured. As these devices are used in high-voltage applications, they must be inspected and tested frequently. The working principle of the PTR016V1200-TR is simple. The device contains a specialized thermistor material which has the capability of resetting itself after it has experienced an overload current. The device works as a current regulator by sensing the current flowing through it and using its thermal properties to prevent further current to flow. When the current exceeds the specified limit, the thermal material responds to the increased temperature. This response results in a rise in impedance which limits the current flowing through the device. After the current falls below a certain level, the device will reset itself and the circuit is back to normal.

Conclusion

The PTR016V1200-TR is a well-suited device for high-current applications in severe operating environments, such as military and vehicular systems. The device is capable of resetting itself after an overload current is experienced, allowing for reliable and safe operation in these applications. The working principle of the PTR016V1200-TR is based on the thermal properties of the device which enables it to sense the current flowing through it and reset itself after the current falls below a certain level.

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