SMBJ58A-TP Circuit Protection

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TVS devices are widely used in various electronic circuits for suppressing transient voltage and current peaks; the SMBJ58A-TP is a particular type of TVS device, widely used in the protection of electronic equipment.The SMBJ58A-TP is a bidirectional Transient Voltage Suppressor (TVS) diode that is designed to protect electronic equipment from electrostatic discharge (ESD); it has a low leakage current, a wide operating junction temperature range, and a low on-state voltage loss. This makes it well suited for use in portable electronic devices and for industrial rated power supplies.

The SMBJ58A-TP\'s basic properties are as follows:

• Breakdown voltage (V_BR): 58V
• Working temperature range: -55℃ to +150℃
• Maximum peak pulse current (I_PP): 8A
• Reverse current leakage (I_R): 3mA

The SMBJ58A-TP\'s main application is in Electrical Over Stress (EOS) protection, which is used to protect against static electricity discharges, high-voltage spikes caused by lightning, power line surges, and other types of transient over-voltages. Its protection ratings are able to withstand up to 8A, up to 58V, and from -55℃ to +150℃.

In terms of working principle, the SMBJ58A-TP functions as a Zener diode; when the applied voltage profile is below its breakdown voltage, it operates in a non-conductive mode, but when the applied voltage profile exceeds the breakdown voltage, it will start to conduct. After the voltage is reduced to below the breakdown voltage, the device will stop conducting. This process of temporarily conducting and blocking the current flow is what enables the SMBJ58A-TP to protect against transient voltage and current peaks.

This device is also characterized by its high surge current capability, which provides additional protection for devices that are subject to high-voltage, high-current events, such as lightning surges. Furthermore, due to its low on-state voltage loss and wide temperature range, the SMBJ58A-TP is a reliable solution for protecting electronic equipment in a variety of conditions.

In conclusion, the SMBJ58A-TP is a bidirectional Transient Voltage Suppressor (TVS) diode that is designed to protect electronic equipment from electrostatic discharge (ESD). Its protection ratings are able to withstand high volts and high currents, making it an ideal solution for both portable and industrial rated power supplies. Furthermore, its low on-state voltage loss and wide operating temperature range make it suitable for use in a variety of conditions.

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