TCF250-145T-B-0.5

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PTC Resettable Fuses, also known as polyfuses or polymeric positive temperature coefficient (PPTC) fuses, are a type of resettable electrical fuse. They are composed of a conducting polymer and are often used to protect circuits from overcurrent scenarios. The TCF250-145T-B-0.5 is an example of a PTC resettable fuse specifically designed for an overcurrent protection application in small appliances.

PTC resettable fuses have the advantage of being able to automatically react to current overload situations and reset themselves after the fault has been cleared. This reduces the need for additional components or external control signals. When a PTC resettable fuse senses a current overload over a certain threshold, it will immediately trip to an open state and remain so until the overcurrent is removed. Once the current level has dropped back to safe levels, the PTC is able to reset itself and restore the circuit back to normal operation.

The TCF250-145T-B-0.5 PTC resettable fuse, for example, is designed for an overcurrent protection application in small appliances, such as telecom equipment, industrial instrumentation, major home appliances, and audio / video power supplies. It comes in a 145T axial leaded package, has an operating current of 0.5A, and can withstand high instantaneous peak currents up to 125A. Furthermore, it has a voltage rating of 32VAC/32VDC and a temperature range from -40°C to +85°C.

In operation, the TCF250-145T-B-0.5 PTC resettable fuse provides an overcurrent protection solution for small appliances. It monitors the current flow and immediately braces itself when a short circuit condition arises. This works by increasing its own resistance to create a cooling effect internally. As a result, the temperature within the fuse quickly rises and causes the current to overload and trip the fuse. Once the short circuit condition is cleared, the fuse will reset itself and resume normal operation.

In summary, the TCF250-145T-B-0.5 PTC resettable fuse is a specific example of a polymeric positive temperature coefficient (PPTC) fuse suitable for an overcurrent protection application in small appliances, such as telecom equipment, industrial instrumentation, major home appliances, and audio / video power supplies. This fuse provides excellent protection by automatically tripping to an open state and then resettling itself once the fault has been cleared. This makes them an ideal choice for applications where fast reliable protection is needed.

The specific data is subject to PDF, and the above content is for reference