MAP5KE48A

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Transient voltage suppressor or transient voltage suppressor (TVS) diodes are used in a wide variety of applications to provide electrical protection from over-voltage transients. The MAP5KE48A is a member of STMicroelectronics’ vast TVS diode family that offers protection against ESD, EFT, and lightning events.

The MAP5KE48A is a bi-directional, general purpose, ESD protection device designed for automated board-level protection of electronic devices from over-voltage transients. It is constructed from a proprietary silicon avalanche diode that is capable of clamping voltage spikes up to 500V. The device is packaged in SOD-882 (‘micro-melon’) size, and comes in a standard, three-pad configuration that can accommodate a broad range of automated assembly processes.

The MAP5KE48A is widely used in automotive, industrial, computer, consumer, and telecommunications applications. It is capable of suppressing ESD strike energy up to ±30kV contact, and up to ±30kV air discharge. It is also capable of suppressing EFT strike energy of up to 40A (5/50ns). Additionally, its excellent clamping capability allows it to absorb the peak energy of up to 200A (8/20μs) withstanding voltage.

The working principle of the MAP5KE48A TVS diode is to provide clamping of voltage transients. This is achieved by the diode’s ability to absorb and dissipate the excess energy produced by the transient voltage. As the input voltage exceeds the device’s breakdown voltage, an avalanche breakdown occurs that allows the MAP5KE48A to absorb the pulse energy. The device then begins to clamp the voltage, preventing the transient voltage from exceeding the maximum clamping voltage.

The MAP5KE48A is designed for a wide range of applications including automotive, industrial controllers, computers, consumer electronics, and telecommunications. All MAP5KE48A TVS diodes feature a high-reliability construction that ensures long-term performance and dependability, making them ideal for use in critical high-voltage protection applications.

In summary, the MAP5KE48A is an effective and reliable protection device for transient voltage spikes. It has a clamping voltage of 500V and can absorb pulse energies up to 200A, making it suitable for a wide range of applications. With its high-reliability construction and automated assembly processes, the MAP5KE48A can provide reliable protection against ESD, EFT, and lightning events for many years.

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