CMDZ5235B TR Discrete Semiconductor Products

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The CMDZ5235B TR is a single zener diode of the type commonly known as a transient voltage suppressor (TVS). It is designed for use in applications where transient voltages need to be controlled, such as automotive and medical electronics. This type of diode is often used to protect sensitive components and circuits from short-duration overvoltage conditions caused by ESD, EMI, lightning, and other sources.

A TVS is essentially a zener diode with a special dielectric material between the substrate and the bottom metal contact layer to absorb transient energy. The dielectric material helps to limit the current passing through the diode during a transient event while providing reverse breakdown protection. The CMDZ5235B TR is rated for a maximum reverse breakdown voltage of 5.5V and a maximum peak pulse power dissipation of 200W at 5A for an 8/20μs waveform.

The CMDZ5235B TR has internal lightning protection and is designed to provide transient voltage clamping protection. This protection is provided by the zener breakdown mechanism, which occurs just above the rated reverse breakdown voltage. When the reverse bias voltage across the diode reaches the breakdown voltage, the zener current begins to flow, thereby limiting the voltage across the diode. The transient voltage is thus quickly and effectively clamped, protecting the sensitive components and circuitry from the overvoltage.

In addition, the CMDZ5235B TR provides electrostatic discharge (ESD) protection to sensitive components and circuits. This protection is provided by the body diode, which is connected between the anode and cathode of the diode. The body diode conducts current during ESD events, limiting the voltage across the diode and providing ESD protection. The CMDZ5235B TR is also designed to provide overvoltage protection and reverse polarity protection, making it suitable for use in a variety of applications.

To summarize, the CMDZ5235B TR is a single zener diode designed for use in applications where transient voltages need to be controlled. It is rated for a maximum reverse breakdown voltage of 5.5V and is capable of withstanding peak power dissipation of up to 200W at 5A for an 8/20μs waveform. The CMDZ5235B TR is designed to provide transient voltage clamping protection, ESD protection, overvoltage protection and reverse polarity protection, making it suitable for a variety of applications.

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