YPAL1.20T

PTC (positive temperature coefficient) Resettable Fuses, also known as self-resetting fuses, are electro-thermal devices used to protect against uncontrolled current in an electronic circuit. A PTC Resettable Fuse consists of a solid-state device with a sensitive PTC element made of ceramic. This element is heated by the current passing through it, and when a certain threshold has been reached it causes a rapid increase in resistance, interrupting the current flow in the circuit. This limits the amount of current that can pass through the resettable fuse, protecting the circuit from over-temperatures and overloads. The PTC Resettable Fuse can then be reset manually after the fault has been cleared in the circuit.

YPAL1.20T is a PTC Resettable Fuse, widely used in electronic circuit protection applications. It has a rated alternating current with a rated voltage of 48V alternating current and a resistance of 10k ohms. It has a hold-current range from 0.28A to 1.20A, with the reset current set at 1.20A. The temperature of the YPAL1.20T can reach up to 130 °C before the fuse is activated, which is significantly higher than other resettable fuses. It has a fast response time and a high current capacity, making it suitable for a wide range of applications.

The YPAL1.20T can be used in a wide variety of applications, including automotive, power supplies, lighting control, industrial control systems, consumer electronics, and other applications requiring circuit protection. It is usually found in power supplies, computer motherboards, AC adapters, and other electronic devices.

The working principle of a YPAL1.20T PTC Resettable Fuse is based on the principle of current-temperature control. The PTC element is heated up due to the current passing through it, at which point its resistance increases rapidly, creating a protective barrier that limits the current passing through the circuit. If the circuit is over-temperature or overloaded, the PTC element will continue to heat up, causing the resistance to continue to increase until the circuit is disconnected.

The YPAL1.20T can provide protection in circuits which are exposed to regular temperature surges or surges of high intensity thanks to its high temperature rating. It also prevents unintentional short-circuit currents due to its fast response time, making it suitable for use in a wide range of applications.

The YPAL1.20T PTC Resettable Fuse is a reliable and cost-effective protection device, and it has become widely used in a variety of circuits and applications. Its fast response time and high current capacity make it a great choice for protecting sensitive electronic components from over-temperatures and overloads, ensuring the safe and efficient operation of electronic circuits.