MA5KP70A

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MA5KP70A Application Field and Working Principle

MA5KP70A is a series of TVS (Transient Voltage Suppression) diodes manufactured by VISHAY, which are designed for the protection of data line interfaces such as USB 2.0. MA5KP70A brings superior performance in surge protection: with a maximum clamping voltage of 7.2V (typical value 5V @ 8/20μs) and a low maximum leakage current of 0.5mA.

Application Field

MA5KP70A TVS diodes can be used in many electronics that need data line protection from electrostatic discharge (ESD) and transient over-voltage conditions. Examples include mobile phones, handheld devices such as PDAs, USB equipment, and computers. In industrial applications, MA5KP70A\'s surge protection makes data networking system more reliable and secure.

Working Principle

MA5KP70A TVS diode works by clamping the voltage to a predetermined level and absorbing any excess energy. The typical working voltage of MA5KP70A is 5V@8/20μs, meaning that during an 8/20μs transient pulse, it takes 5V to begin conduction. This is done by a PN junction, designed to conduct if the voltage exceeds the predetermined level, dissipating excess energy as heat. As soon as it senses an incoming transient, the diode immediately begins conduction.

Mounting Method

MA5KP70A can be mounted both on the surface and through hole. For surface mounting, a patch of copper is etched on the PCB, on which the MA5KP70A is soldered. For through hole mounting, the component is inserted and soldered into the appropriate holes of the board.

Conclusion

MA5KP70A is a TVS diode manufactured by VISHAY, which provides superior protection against transients. It features a maximum clamping voltage of 7.2V (@8/20μs) and a low maximum leakage current of 0.5 mA. It can be used in a wide range of applications such as mobile phones, PDAs, computers, and industrial data networks, and is easily mounted on the surface and through hole.

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