MAP5KE48AE3

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TVS diodes are a category of semiconductor devices that are used in power-supply designs to prevent the effects of voltage surges.MAP5KE48AE3 is a unidirectional low capacitance TVS (Transient Voltage Suppressor) diode specially designed for ultra low capacitance ESD protection. It offers excellent clamping capability and encapsulated in a DFN-9 package, offering improved thermal characteristic. The device is suitable for USB 2.0 and other high speed data line protection

Applications of MAP5KE48AE3 includes automotive Ethernet, USB 2.0, 10/100/1000 Mbps Ethernet, RS-485, CAN Bus, PoE (Power over Ethernet), HDMI (High Definition Multimedia Interface) and other I/O interface protection. It’s a fully qualified device that meets the highest requirements in automotive applications as well as in medical, industrial and civil electronic applications.

The working principle of MAP5KE48AE3 is simple and efficient. When a voltage surge or over voltage occurs at the TVS diode, the circuit is connected and reactive current is diverted internally to ground. The transient voltage is clamped as it passes through the TVS diode, which is essentially an avalanche breakdown type device. The over voltage is safely dissipated as heat then the diode is reset after the transient has been absorbed. It can handle surge currents from 500W (8/20μs) to 10kW (10/1000μs), depending on its construction.

In conclusion, the MAP5KE48AE3 is a unidirectional low capacitance TVS diode specially designed for ultra low capacitance ESD protection. It offers excellent clamping capability for several automotive and industrial applications, and can handle surge currents effectively. TVS diodes like MAP5KE48AE3 are widely used in power-supply designs to prevent the effects of voltage surges.

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