PFMT.013.250.B.2 Circuit Protection

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PTC Resettable Fuses (PPTCs) provide a new, efficient way to protect electronic circuits from over-currents and short-circuits. The PTC Resettable Fuses, also know as PolySwitch fuses or Polyswitches, works in a similar way to a thermal fuse or a thermal breaker. The PTC resettable fuses are made of plastic materials with a special thermal heater embedded inside of it. The thermal heater is designed to detect and measure the rate of changes in current flowing through it. When too much current is detected, the heater inside of the PTC resettable fuse will increase the temperature of the fuse to an extremely high temperature, at which the fuse will trigger. Then the PTC fuse will open up, creating an open circuit, which will block the electricity from passing through.

The PFMT.013.250.B.2 PTC Resettable Fuses have an inherent resistive state, with a resistive opening value of 0.25 ohms. The PFMT.013.250.B.2 are designed for applications that require high current protection and high current/Glow operation. These fuses are great for applications such as battery protection, electronic modules, Automotive LEDs and many other circuits where high current is required. The PTC resettable fuse also offers improved performance, reliability, and longevity benefits, as they act in a similar way to a fuse, but with the ability to reset itself when the underlying problem is fixed.

PFMT.013.250.B.2 PTC Resettable Fuses have a wide range of applications. The most common applications are lighting, LED lighting, power supplies, automotive, and consumer electronics. Lighting applications are one of the most popular applications for these fuses, and can be found in many types of applications from LED light strips to LED floodlights. Additionally, PTC Resettable Fuses are used in automotive and power supply applications as they offer protection from high voltage surges and current overload.

Looking at the underlying working principle behind the PFMT.013.250.B.2, we can see that when the tie wire is heated, the inherent resistance of the fuse reaches the pre-determined opening value. This causes the fuse to open, interrupting the circuit and blocking the current. When the current reduces to a safe level, the fuse can be reset. This reset capability allows the fuse to be used in applications that require high current operation and protection.

In summary, the PFMT.013.250.B.2 is a PTC Resettable Fuse designed for applications that require high current protection and operation. The underlying working principle of these fuses is based on the principle of a thermal fuse, where when the tie wire is heated, it reaches a certain opening value, interrupting the circuit and blocking the current. Once the current reduces to a safe level, the fuse can be reset. These fuses offer improved performance, reliability, and longevity compared to other fuses, and have a wide range of applications, such as lighting, automotive, and power supply applications.

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