MART100KP350CAE3

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TVS diodes, or Transient Voltage Suppressors, are an essential component in many electronic circuits, providing circuit protection to vulnerable components from electrostatic discharge (ESD) and surges. The MART100KP350CAE3 is one such TVS diode, designed to protect against ESD with an array of applications. In this article, we’ll explain the application field and working principle of the MART100KP350CAE3.

Application Field of MART100KP350CAE3

The MART100KP350CAE3 is a low-power, bidirectional TVS diode commonly used to protect sensitive electronics from overvoltage transients, including ESD. It has a low capacitance of <7pF and low leakage current, making it ideal for use in high speed systems. Typical uses of the MART100KP350CAE3 include:

• Protecting USB ports, Ethernet ports, and other data interfaces from ESD.
• Protecting microcontrollers, FPGAs, and other sensitive components from ESD.
• Protecting automotive systems from ESD.
• Protecting telecom equipment from ESD.

Working Principle of MART100KP350CAE3

The MART100KP350CAE3 utilizes an integrated dual-gate bidirectional structure, which protects against simultaneous ESD events from both positive and negative voltage transients. The diode’s integrated dual-gate circuit includes two MOSFETs, which are activated when a predetermined threshold voltage is breached. When the opposite polarity voltage transient exceeds the reverse operating voltage rating, the MOSFET on that side will provide clamping, limiting the transient voltage to a safe level and protecting the circuit.

Additionally, the diode is built with a “soft clamping” feature, which limits the current surge to 0.5 A, enabling it to respond faster and more reliably to fast ESD transients without sudden changes in the gate voltage that may damage the circuit. The MART100KP350CAE3 also has an excellent ESD immunity rating of up to ±6.5 kV.

Conclusion

The MART100KP350CAE3 TVS diode is a reliable, low-power device designed to protect sensitive circuits from ESD and overvoltage transients. The diode’s integrated dual-gate structure and “soft clamping” feature enable it to reliably and safely provide protection for a number of different applications, including USB ports, Ethernet ports, and automotive systems.

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