5.0SMLJ54A-TP Circuit Protection

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TVS – diodes are voltage suppressors used to protect sensitive electronic system components from electrical overstress. These components are a form of transient voltage suppressors (TVS). The 5.0SMLJ54A-TP is a silicon unidirectional voltage suppressor that offers superior protection in a variety of applications.

This device is a bidirectional suppressor with an ultra-high breakdown voltage of 5.0V that is rated to handle up to 54A of surge current. It features a low capacitance of 0.01pF and low leakage current of 0.1μA. With a RoHS and halogen-free construction, the device offers a very low profile package that makes it well suited for high-density board designs.

The 5.0SMLJ54A-TP is used for many applications such as automotive, IT equipment, consumer electronics, communications equipment, and industrial applications. It is used for board-level and I/O protection against overvoltages, electrostatic discharge (ESD), radio frequency interference (RFI) and other transient events. It is also used in MIL-STD-461F lightning and power load protection.

The device is based on the working principle of avalanche breakdown. This is where the reverse-biased junction of the paired transistor structure experiences electric field intensification when the voltage across the junction reaches a certain level known as the breakdown voltage. This triggers an avalanche process, generating a substantial increase in current flow. This current then discharges through the adjacent diode component of the paired circuit, providing a safe path to ground for the excess energy and limiting the risk of damage to surrounding components.

The 5.0SMLJ54A-TP has proven to be an effective device for providing reliable protection against voltage surges and transients. With its high surge and lightning protection capabilities, low capacitance and leakages, and RoHS-compliant and halogen-free construction, this is an ideal device for many popular applications in the electronics industry.

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