PTGL09BD2R2N2B51B0

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PTC (Positive Temperature Coefficient) Resettable Fuses are a type of self-healing overcurrent protection device that remain in a low-resistance state until an overcurrent appears. They are typically made of a metallic strip with special conductive polymers embedded into it that create a non-linear temperature-resistance characteristics. When subjected to an overcurrent or overload, they will heat up and the temperature increase will cause their resistance to increase significantly. This will then reduce the current flow until the overcurrent or overload condition is no longer present, at which point the device will reset, returning to a low-resistance state.

PTGL09BD2R2N2B51B0 is a type of PTC Resettable Fuse designed for use in consumer and industrial applications. It has a 20VDC rating and can provide overcurrent protection in both AC and DC circuits. The device features fast response time for overcurrent conditions and low temperature rise during normal operation. It is also able to provide effective thermal protection during overloads up to 50A.

The working principle of the PTGL09BD2R2N2B51B0 can be explained as follows. When no overcurrent is present, the device will be in a low-resistance state, allowing current to pass through unhindered. However, when an overcurrent is detected, the device will heat up and the temperature increase will cause its resistance to rise significantly, thus disrupting and inhibiting the flow of current. Once the overcurrent or overload condition has been removed, the device will gradually cool down and reset, returning to its low-resistance state.

The PTGL09BD2R2N2B51B0 is suitable for a wide range of applications, including medical, industrial, computer, audio video, and automotive electronics. It can be used as a primary protection device, and can protect against short circuits, overvoltages, in-rush currents, and power surges. Additionally, the device is RoHS compliant and meets the requirements of UL 94V-0 flame rating.

In conclusion, the PTGL09BD2R2N2B51B0 is a valuable addition to the range of PTC resettable fuses available on the market. With its fast response time, high operating temperature range, and UL 94V-0 rating, it is an ideal choice for consumer and industrial applications where reliable overcurrent protection is required.

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