MAP5KE64AE3

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Transient voltage suppressor devices with breakdown voltages of around 5V and working under intense current pulses, are components described with the type number MAP5KE64AE3. These devices provide a variety of applications, while working in their most basic principle. TVS diodes, as the MAP5KE64AE3 is generally referred to, are components that are used to protect other components within an electrical circuit. The voltage spikes that sometimes occur, can produce shock currents that can compromise the efficient functioning of components. By utilizing TVS diodes, such as the MAP5KE64AE3, the component in need of protection is placed in series with the TVS diode. When a spike of extreme voltage occurs, the diode has the capability to shunt the current safely away from the protected device, limiting the voltage levels to a maximum of 5V.

The MAP5KE64AE3 is also capable of acting in the reverse voltage blocking diode’s role, protecting against spikes of negative voltage. By installing the diode in an opposite direction with the anode on the low side, and cathode on the high side, the diode acts to block any transient switching of a device or any other improper surge against the positive rail voltage. The MAP5KE64AE3 is build utilising a two-terminal body structure, available in an SMA package size, able to support up to a short-term pulse power of 3300W at a 25ms pulse duration. Its threshold voltage for the flow of excess voltage is 5V, and can sustain a reverse avalanche voltage of 11V. The MAP5KE64AE3 diode has a number of features that makes it desirable to engineers. These include a low capacitance performance of 17pF, a fast switching speeds of 5V/µs, and a high ESD (electrostatic discharge) protection of >25KV (class 5). The device is highly reliable, with a minimum break-down voltage of 6.5V, enabling the bi-directional clamping action to take place.

In external applications, engineers can integrate MAP5KE64AE3 in board level protection, in such a way that ESD clamping is provided for Ethernet, RS-232 serial communications, and for Video systems. The diode also offers improved signal quality and protects against ESD damage in critical circuits. Generally, the MAP5KE64AE3, as a TVS diode, offers semiconductor-level protection for a variety of circuits and devices. When a voltage spiking rises above the Zener breakdown voltage, the diode will clamp the increase in voltage at the breakdown voltage, shunting any extra current away from the protected device to ground. The diode acts as a switch, and when the voltage spikes, acts to flow current through the short path, and the resistor limits the current that passes through. Once the transient voltage is removed, the diode reverts back to its open switch mode that enables it to be ready to redirect any future spikes.

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