P4KE47HE3/54

A TVS – diode, such as P4KE47HE3/54, is an important device in the field of power electronics. In comparison with other protection equipment, it has many advantages, such as lower cost and fast response.

A TVS – diode is defined as a solid state, bi-directional device that is designed to protect sensitive electronic components by clamping the excessively high voltage. The P4KE47HE3/54 is one of the most commonly used types, capable of both surface mount and axial lead type packaging. It consists of two parts: an SCR diode and a MOSFET.

The SCR diode acts as a surge absorber and is responsible for limiting the current once a voltage higher than the nominal one is detected. The MOSFET is used to control the current through the diode, since it turns on and off depending on the voltage present. The combination of these two elements allows for maximum protection from voltage surges.

The P4KE47HE3/54 has a relatively low breakdown voltage of 47V, which is high enough for most surge protection applications. Additionally, it has a fast reaction time of less than 20 nanoseconds, which is also essential when protecting a power source. The device also has a high thermal stability and can handle currents up to 3A, making it suitable for a wide range of applications.

In terms of application areas, the TVS diode can be employed in voltage regulation, overvoltage protection, and electrical noise reduction. In voltage regulation, the TVS diode can act as a clamping device and reduce peak overvoltage, thereby increasing the efficiency of the electronic system in which it is used. Likewise, it is also used in overvoltage protection applications, in which it prevents any damage to downstream electronic components from occurring due to excessive voltage.

Finally, the TVS diode can be employed to reduce electrical noise. This is achieved by the TVS diode’s ability to absorb energy from the noise and thus avoid interference in the power source’s operation. Examples of scenarios in which this is useful can range from digital circuit implementations to power line protection.

In short, the P4KE47HE3/54 is a TVS – diode that has many advantages. It boasts a relatively low breakdown voltage, fast reaction time, and thermal stability, making it perfect for applications which require fast response and protection against voltage surges and noise.