SMBJ30HE3/5B

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The SMBJ30HE3/5B belongs to the TVS (Transient Voltage Suppressor) - Diodes. It is designed to provide surge protection in electronic devices. The protection diodes are designed to protect against large voltage spikes caused by electrostatic discharge, lightning or other sources. The SMBJ30HE3/5B is a dual Common Anode Low Capacitance Diode Array.

An important factor in the selection of an overvoltage protection device is the electrical characteristics which define the ease with which the device can withstand surges. The SMBJ30HE3/5B is capable of withstanding surges up to 30 Amps and up to 5.5kV. The peak pulse current that it can withstand depends on the pulse width as well as the temperature, so it can be designed to withstand a wide range of conditions. The device also has a low capacitance of 5pF which makes it well suited for use in sensitive circuits.

An important electrical characteristic of the device is the working voltage. The 30V Reverse Stand-off Voltage allows it to sustain normal voltages, and prevents it from being damaged when the surge is higher than normal. The device also has a low Clamping Voltage, which is the voltage that the device will cause to rise when it is exposed to a surge. This voltage difference makes it easier for the device to survive a surge without being damaged or failing.

The SMBJ30HE3/5B works in the manner of a diode array. The two anodes of the device are connected to ground through a bypass capacitor which acts to absorb some of the surge. The clamping voltage of the devices is determined by the resistance of the bypass capacitor and the amount of current the device can absorb. The device is also designed to provide overvoltage protection by clamping the voltage when the peak voltage exceeds its rated voltage. This helps to protect the device and the circuit from damage caused by surges.

In addition, the SMBJ30HE3/5B also has a fast response time that allows it to react quickly to surges. This helps to protect the device and the circuit from damage caused by overvoltages by providing adequate protection even if the surge occurs for a short duration. The device also has an ESD immunity of 8kV which helps to minimize the possibility of unexpected external electrical stimuli.

The SMBJ30HE3/5B is a valuable device for providing surge protection for electronic devices. It has an excellent peak pulse rating, a low Clamping Voltage, a fast response time, and an ESD immunity of 8kV. All of these characteristics make it well suited for use in sensitive circuits.

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