SMDA05C-5TR Circuit Protection

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TVS (transient voltage suppression) diodes are an important class of semiconductor devices used to protect sensitive electronics from electrical transients, such as ESD (electrostatic discharge) and lightning-induced surges. The SMDA05C-5TR is a unidirectional bi-directional TVS diode designed specifically for data and signal line protection. This article will discuss the application field and working principle of the SMDA05C-5TR.

The SMDA05C-5TR is designed for ESD and transient protection in data and signal lines. Its low breakdown voltage allows the device to clamp voltage transients and divert them away from sensitive internal components. This is especially useful in systems with operating voltages below 5V, such as USB, Ethernet, and general-purpose I/O lines.The SMDA05C-5TR has a low capacitance and parasitic inductance of 7pF and 3nH, respectively, which allows for high-speed signal transfer with minimal signal degradation. In addition, the device is available in multiple leaded packages as well as surface mount.

The working principle of the SMDA05C-5TR is simple. It is designed as a bidirectional surge absorber, and as such has a diode in series with its internal shunting element. When a surge is applied, either positive or negative, the anode (positive) side of the diode will become forward biased and the shunting element will divert the current away from the sensitive components. As the current passes through the diode, it will be clamped to a maximum voltage, determined by the breakdown voltage of the device. The SMDA05C-5TR has a maximum clamping voltage of 5V.

The SMDA05C-5TR is an effective solution for applications that require ESD and transient protection in data and signal lines. It has a low maximum clamping voltage of 5V, low parasitic inductance and capacitance, and is available in multiple packages. It is a useful device for applications that require protection from transient voltage surges.

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