SMP7.5A-M3/85A Circuit Protection

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TVS - Diodes

A Transient Voltage Suppressor Diode (TVS) is a type of diode designed for protection against high voltage transients in electrical systems. TVS devices are also known as protective diodes, as they protect against overvoltage in electrical circuits. TVS diodes are mainly used to protect semiconductors from damaging voltage transients, which can cause malfunctioning or breakdown of the protected device due to excessive current. They also help protect against electrostatic discharges (ESD), electrical fast transients (EFT), and power surge threats.

The SMP7.5A-M3/85A is a unidirectional TVS diode designed for protection against high voltage transients and surges. It consists of two p-n junctions connected together in series with a voltage suppression region in between. This protects the device against both positive and negative voltage transients. The diode has a peak pulse current rating of 175 A and can clamp transients up to 95 V. The device can also absorb up to 283 W of peak power during an EFT pulse.

As far as application fields are concerned, these devices are commonly used in automotive, computer, communication and industrial electronic applications, including power supplies, DC-DC converters, surge protection for signal lines, and I/O ports. They are mainly used as a protection against electrical over-stress (EOS) in these applications.

The working principle of the SMP7.5A-M3/85A TVS diode involves the application of an external surge to the diode, which causes it to become forward biased. As a result, the diode turns on, allowing current to flow through it. The current flows until the external surge is dissipated. This prevents voltage spikes from exceeding the diode\'s breakdown voltage, thus protecting the components in the electrical circuit.

The SMP7.5A-M3/85A TVS diode can be used in a wide range of applications and provides effective and reliable protection against voltage transients and surges. The device is also small in size and suitable for limited space applications. This makes it an ideal choice for protection in areas where low power dissipation and small size are required.

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