1KSMBJ75A

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TVS (Transient Voltage Suppressors) diodes, or Transil Diodes, are special types of semiconductor junction diodes with a particular capability to absorb or discharge electrical energy when subjected to external electrical impulse. The 1KSMBJ75A is a three terminal miniaturized unidirectional Thyristor Surge Suppressor Diode designed to protect sensitive electronic equipment from voltage transients induced by lightning or other transient voltage events.

The 1KSMBJ75A is typically used to provide protection against voltage transients such as those generated by switching inductive loads, motor or relay contact closure and lightning discharges. It offers superior surge capability, as well as high-speed response, making it an ideal choice for a variety of applications. These applications include telecommunications, information technology equipment, power supplies, automotive electronics, and consumer electronics.

The principle of operation of the 1KSMBJ75A is based on the crowbar effect. In this mode, a large surge or pulse of current is clamped quickly and efficiently to a safe value. When the current flow exceeds the crowbar threshold, an avalanche breakdown causes the device to enter a low impedance conductive state. This action creates a protective barrier that diverts excess energy away from the application.

The 1KSMBJ75A can also be used as a bidirectional protection device. In this mode, it will protect against overvoltage and reverse current flow. The device is designed with a voltage clamping system that limits the maximum voltage across the junction. It is also capable of fast switching, ensuring that it responds quickly to transient voltage events.

The device is encapsulated in a hermetic-sealed SOD-523 package for space-saving installation and miniaturization. This ensures that its components are securely fastened and unaffected by external environmental conditions. In addition, the device also features an internal thermal overload protection circuit, which helps to maintain proper operating temperature and maximize device reliability.

The 1KSMBJ75A is a cost-effective solution for protecting electronic devices from the destructive impact of transient voltage surges. With its superior performance characteristics, the device is an excellent choice for a wide variety of applications, such as automotive, consumer electronics, telecommunications, and more.

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