SMBJ150ATR Circuit Protection

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The SMBJ150ATR is a TVS diode ideal for protecting sensitive electronics from transient voltage events. This diode features a stand-off voltage of 150V and a breakover voltage of 175V. It also has a maximum power dissipation of 500mW (@25°C). Its high surge capability and low VF make it well suited for protecting high-speed data lines such as those used in modern electronics.

TVS diodes are usually used for overvoltage protection in portable electronic devices. They\'re designed to interrupt current caused by transient events, preventing damage to sensitive components. Due to their low-clamping voltage, these diodes can also be used for electrostatic discharge protection. Essentially, they act like a short-circuited zener diode, absorbing the energy and dissipating it as heat.

The SMBJ150ATR is a bidirective device, meaning it can suppress voltages and currents in both directions. This makes it highly effective in handling ESD, EFT, surge, and power-induced transients. It has a fast response time that makes it suitable for high-speed signal lines, and a low leakage current of up to 1mA. This low leakage helps prevent power loss and makes it more efficient when handling energy transients.

The SMBJ150ATR works by acting as a low resistance path when triggered, across the protected terminals. When exposed to an overvoltage, current flows through the junction of the diode, creating a voltage drop across the terminals and providing protection. This reduces the voltage that would otherwise flow to the protected circuit and safely dissipates the excess energy as heat. The diode is then reset when the transient voltage goes back to its nominal value, and the junction returns to its high resistance state.

The SMBJ150ATR is suitable for a wide range of applications, including high-speed communication lines, power cables, DC-to-DC converters, data transceivers, and mobile devices. Its wide range of features make it an ideal overvoltage protection solution for many different devices and components. Its small size and high surge capability also make it well suited for use in compact electronic devices.

In addition to its overvoltage protection capabilities, the SMBJ150ATR also has additional features that make it a great choice for protecting sensitive components. The device offers excellent EMI/RFI noise immunity, as well as a high insulation resistance of up to 10MΩ. This is especially beneficial in medical and automotive applications, where high voltages are often present.

The SMBJ150ATR is a reliable and effective overvoltage protection solution for a wide range of applications. Its fast response time and low leakage current make it well suited for protecting sensitive electronics from transient voltages and unwanted noise. Its bidirectional operation also makes it an ideal choice for protecting high-speed data lines or any other electrostatic discharge sensitive device.

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