YM120C45N301

PTC Resettable Fuses (also known as Polyfuses) are a type of fuse that can be reset after being tripped for an over-current condition. The YM120C45N301 is a unique PTC Resettable Fuse designed to offer superior protection in a variety of circuit designs.The YM120C45N301 provides up to 120V of continuous current and is designed for robust use in high-temperature applications. The device is UL approved with a variety of ratings, ensuring it can be used in a wide range of applications.The YM120C45N301 application field encompasses consumer products, LED and HID lighting, electrical vehicles, generators, off-grid power sources, and many more. The device is also excellent for mission-critical applications such as medical and communication devices due to its superior performance and reliability.The working principle of PTC Resettable Fuses is based on thermal technology. Whenever the current going through the device exceed its rating, the heat produced causes the device to open, cutting off the current supply. The device will stay in this open state until it has cooled down sufficiently to allow it to reset. This minimizes unnecessary power outages due to over-current situations, allowing the device to be reset and resumed operation quickly.The YM120C45N301 features two parts, a thermally sensitive resistor and a settable fuse element. The Resistor\'s electrical resistance increases as the temperature rises, causing the Fuse element to trip. When the temperature drops below the Trip temperature, the Fuse restores the electrical connection, and the circuit can continue its normal operation.The YM120C45N301 also features a unique design that helps reduce power dissipation and prolongs life. The device\'s large junction area helps reduce thermal impedance and provides better energy storage capabilities. This circuit helps decreases power consumption and helps improve the thermal and electrical performance of the device. Additionally, the device features a self-adaptive circuitry that ensures the current is both stable and reliable.The YM120C45N301 is designed to provide superior performance in a wide range of applications. Its unique design offers better protection against over-current situations and its wide voltage range makes it ideal for a variety of applications. Furthermore, its robust construction and superior thermal and electrical performance make it an excellent solution for users looking for reliable protection in high-temperature applications.