BZW04-58BHA0G

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A TVS (transient voltage suppression) diode, such as BZW04-58BHA0G, is a specialized type of diode that is used to protect electrical circuits from high-voltage transients or surges. The diode is designed to quickly clamp the overvoltage, suppressing it to a level that will not damage the protected circuit, eliminating the need for a separate external component to protect the circuit. It is ideal for use in power supplies, electronic circuits, industrial control and communication systems as well as consumer electronics applications.

The protection circuitry is based on a zinc oxide (ZnO) nonlinear resistor, which is an integrated type diode and resistor with positive temperature coefficient characteristics. The voltage clamping mechanism is typically implemented in a p-n junction diode with ZnO resistors that protect a device from voltage surges.

When the voltage on the protected circuit exceeds the peak pulse current rating of the diode, the ZnO resistors act as clamping elements to suppress the overvoltage. The nonlinear resistors of the diode absorb the energy of the surge and disperse that energy as heat. This way it prevents damage to the protected circuit.

The operational characteristics of the BZW04-58BHA0G diode are based on its peak pulse current, peak surge current, clamping voltage, capacitance, rise time and response time. The peak pulse current is the maximum amount of current that the diode can take in a single pulse. The peak surge current is the maximum amount of current that the diode can take in a single surge event.

The clamping voltage is the voltage at which the diode begins to clamp the overvoltage. The capacitance is the value of the capacitance that is built up by the diode. The rise time is the time taken for the diode to reach its full clamping voltage, while the response time is the time taken for the diode to react to an overvoltage event.

In addition to the aforementioned characteristics, the BZW04-58BHA0G diode also has a reverse leakage current, which is the current that flows through the diode in the reverse direction. This is important because it affects the amount of current that flows through the protected circuit, and thus the device’s reliability.

The BZW04-58BHA0G is used in a variety of applications such as power supplies, electronic circuits, industrial control and communication systems as well as consumer electronics applications. It can be used to protect against overvoltage or voltage surges that could result from lightning strikes, defective wiring, power outage, grounding problems and the like.

The BZW04-58BHA0G diode offers protection to the protected circuit from overvoltage or voltage surges by clamping the overvoltage to a level that will not damage the protected circuit and by dissipating the energy of the surge as heat. This makes it an ideal choice for a wide range of applications.

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