VLP220ULF

Series:	PolySwitch®, VLP
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--
Type:	Polymeric
Voltage - Max:	16V
Current - Max:	60A
Current - Hold (Ih) (Max):	2.2A
Current - Trip (It):	5.3A
Time to Trip:	5s
Resistance - Initial (Ri) (Min):	17 mOhms
Resistance - Post Trip (R1) (Max):	58 mOhms
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Mounting Type:	User Defined
Package / Case:	Strap
Size / Dimension:	0.917" L x 0.154" W (23.30mm x 3.90mm)
Height - Seated (Max):	--
Thickness (Max):	0.032" (0.80mm)
Lead Spacing:	--
Approvals:	CSA, TUV, UL

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PTC Resettable Fuses are a type of over-current protection device. They incorporate a patented temperature sensitive Polymer PTC (positive temperature coefficient) resistor element which provides a high level of over-current protection as well as thermal protection. PTC resettable fuses are an alternative to traditional fuse products, providing a level of performance, simplicity, and safety that makes them an ideal choice for a variety of applications.VLP220ULF is a resettable fuse device from Taiwan Semiconductor’s Power Overload Protection Solutions line. This device features dual-element positive temperature coefficient (PTC) resettable fusing, which helps prevent overheating and overloading of power systems. It is designed to protect power systems from overvoltage, overtemperature, overcurrent, and overcurrent-related conditions. The device features a high-accuracy, high-speed overcurrent detection with adjustable hysterisis and automatic reset.The VLP220ULF is a dual-element PTC device that offers a wide voltage range, from 2V to 20V. It comes in an 18-pin package and features a constant current hold current of 2.2A with a maximum trip current of 230A. The device also has a holding voltage, overcurrent hold current, and trip current adjustable hysterisis which helps improve system reliability and accuracy when power is supplied.The VLP220ULF is typically used in applications such as computers, embedded systems, consumer electronics, power tools, and automotive power systems. It is a critical component for maintaining system integrity in both commercial and industrial applications, as it protects power systems from overheating and overloading.The VLP220ULF works by monitoring and detecting overvoltage, overtemperature, and overcurrent-related conditions. When one of these conditions is detected, the device will activate its Temperature Activated Fusing (TAF) element. This element is a temperature-sensitive Polymer PTC (positive temperature coefficient) resistor that will expand until the voltage is below the trip point, thus breaking the circuit and preventing the system from being overloaded or damaged.The TAF element is designed such that it will reset itself after the temperature has been reduced and the overcurrent condition is no longer present. This allows for the VLP220ULF to be used in applications where the circuit must be automatically restored without the need for manual intervention. The device also includes a built-in current-sense resistor which will reduce the sense current for improved accuracy and system protection.In summary, the VLP220ULF is an ideal choice for applications that require overcurrent protection, thermal protection, and automatic reset. It is designed for use in a wide range of commercial and industrial applications including power systems, embedded systems, consumer electronics, and automotive power systems. Its dual-element PTC resettable fusing, adjustable hysterisis, and wide voltage range make it an excellent choice for maintaining system integrity and safety.

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