RUSBF120-AP

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PTC Resettable Fuses (Polymeric Positive Temperature Coefficient) are used to protect against over-current, overloads or short-circuits. They are commonly used in electronic applications or devices, temperature control and over-charge protection, in addition to providing electrical isolation and disconnection. RUSBF120-AP is one such PTC Resettable Fuses and its application field and working principle are discussed below.

Application Field: RUSBF120-AP is a type of trip-free, resettable fuse intended for over-current and over-temperature protection of equipment and circuits. This fuses are primarily used in consumer electronics such as computer peripherals, chargers, audio/video equipment and telecommunications and networking/Internet systems. They are also suitable for automotive, industrial and medical applications.

Working Principle: PTC fuses incorporate a non-linear bi-cell element made up of two elements, which are connected in series. Normally, the two elements provide the current path in the circuit and do not interfere with the operation. When an overload or short-circuit occurs, the PTC fuse will activate, leading to an increase in resistance in the path. The increased resistance limits the current flow and reduces the temperature in the circuit, thereby protecting it from harm. The current must then be reset before normal operation is resumed. Typically, the current flow will decrease to a safe level in order to reset the fuse. The RUSBF120-AP is particularly designed to protect devices against over-current, overloads and short-circuits and help to keep them safe.

In addition to providing electrical isolation and disconnection, RUSBF120-AP also provides thermal protection, temperature control and overcharge protection. The temperature control feature prevents the fuse from activating due to a sudden surge in current or temperature, whereas the overcharge protection feature helps to protect the device from excessive charge or discharge. Furthermore, the fused circuit can be reset automatically or manually in the event of an overload or short circuit.

The RUSBF120-AP is available in many versions, offering a wide range of amplitudes, current ratings and voltage ratings. It is manufactured using advanced technologies for high accuracy in the current rating and is designed to meet the highest quality standards. The RUSBF120-AP is robust and compact with high temperature stability and an excellent high-temperature performance. The fuse also has a low self-inductance and low capacitance, which helps to minimize losses when a short-circuit occurs. It also features a low resistance, which helps to reduce connection resistance.

RUSBF120-AP is an effective device for protecting equipment and circuits from over-current, overloads and short-circuits. It has a wide range of applications and is designed to meet the highest standards of quality. Moreover, it provides an excellent thermal performance and has a low resistance, low self-inductance and low capacitance, thus helping to reduce connection losses. Therefore, it can be considered as a reliable and efficient PTC resettable fuse for your applications.

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