SMBJ6.5A-TR Circuit Protection

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The SMBJ6.5A-TR is a unidirectional transient voltage suppressor (TVS) designed to protect sensitive components from voltage transients induced by lightning, inductive switching or other disturbances. It is specifically designed for applications such as data and telecom lines, in which these efforts are used to protect against the transient over-voltage generated by these stresses.

The SMBJ6.5A-TR is packaged in the popular SMBJ Series outline, making it ideal for use in both circuit board and cable assemblies. The device provides an ESD protection of 8kV (HBM) and a clamping voltage of 6.5V, giving it a high level of protection against electrical transients on sensitive components. The SMBJ6.5A-TR also has a low reverse leakage current, resulting in less power consumption and improved circuit performance.

When subjected to a voltage transient, the SMBJ6.5A-TR quickly switches from its low-impedance, off-state to its high-impedance, on-state. This switch action clamps the transient voltage waveform and suppresses its energy level. The temperature coefficient of the device limits its operation to +125 °C, allowing it to be used in higher temperature applications.

In terms of their application fields, TVSs such as the SMBJ6.5A-TR are typically found in telecom, data and signal line protection applications. These TVSs are used to protect sensitive components, such as ICs and other components, from over-voltage and transient events, providing a low clamp voltage and low capacitance while having a low leakage current. TVSs are also often found in power supplies, security systems, AC adaptors, electronic spark gaps, and more.

The working principle of TVSs is relatively simple. When subjected to an electrical transient, the TVS quickly switches from its off-state to its on-state, effectively clamping the voltage waveform and suppressing its energy level. The junction temperature is also limited to +125°C in order to protect sensitive components.

In summary, the SMBJ6.5A-TR is a unidirectional transient voltage suppressor (TVS) designed to protect sensitive components from voltage transients induced by lightning, inductive switching, or other disturbances. It finds use in a wide variety of applications, including telecom, data and signal line protection, power supplies, security systems, AC adaptors, electronic spark gaps, and more. When subjected to an electrical transient, the SMBJ6.5A-TR quickly switches from its off-state to its on-state, effectively clamping the voltage waveform and suppressing its energy level.

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