SA33A/54

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TVS (Transient Voltage Suppressor) diodes are among the key components in lots of circuits that require protection from spikes in transient voltage. This includes microprocessors, voltage regulators and power supplies, as well as automotive and telecom applications. The SA33A/54 is an example of a TVS diode that is designed to protect these circuits from high voltage transients.

The SA33A/54 is a bi-directional, unipolar, low-capacitance device. It is designed to absorb the energy of transient voltage events such as electrostatic discharge (ESD) and electrical fast transients (EFT), and to protect against voltage spikes up to 13 kilovolts. It can also offer protection against mis-wiring the power supply or hot-swapping components to the circuit.

The SA33A/54 offers protection to sensitive components and circuits in a wide range of applications. Its low profile castellated package makes it an ideal choice for data lines, such as USB and Ethernet lines, as well as RF circuits. It is also suitable for automotive applications, as it has parameters that meet AEC-Q101 standards. It has a wide operating temperature range of -40°C to 125°C.

The SA33A/54 is designed to offer protection from high voltage transients. It works by absorbing the energy of the voltage spike and dissipating it in the form of heat. The device has two terminals, one for the anode and one for the cathode. When a voltage spike is applied, the diode has a reverse breakdown voltage, at which point the device starts to conduct. This clamps the voltage at its breakdown voltage level and absorbs the excess energy of the transient. The energy is then dissipated as heat. The device is able to reset itself once the transient is over, thus allowing normal operation again.

The SA33A/54 is an economical and reliable solution for various power supply and data line protection applications. It has a wide operating temperature range and its low profile castellated package makes it suitable for multiple applications. Its low capacitance values and low reverse leakage current help to keep data signals clean and make the device suitable for high speed data transfer on data lines like USB and Ethernet. Furthermore, its AEC-Q101 parameters make it a reliable choice for automotive applications.

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