SMCJ6.5CAE3/TR13

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TVS or Transient Voltage Suppressors are a form of unidirectional protection devices that are designed to provide enhanced protection from damaging voltage transients which are caused by surges or electrical interferences. Protection can be obtained through a range of components including Zener diodes, TVS diode arrays, and thyristors. The SMCJ6.5CAE3/TR13 is an example of a TVS diode and is used to provide bidirectional protection against electrostatic discharges (ESD), electrical fast transients (EFTs) and lightning strikes.

The SMCJ6.5CAE3/TR13 is an SMC-type Transient Voltage Suppressor (TVS) diode, with a working voltage of 6.5V and peak pulse power of 400W. The low working voltage helps increase the capacity for lower voltage protection, while the high pulse power rating offers improved protection against lightning and power surges. The breakdown voltage is 6.5V and the surge peak current rating is 13A. The diode also has a low parasitic capacitance of about 70pF typical. It is housed in a SOT-23 surface-mount package that can be reflow mounted on a PCB.

The SMCJ6.5CAE3/TR13 is primarily intended for use in applications where protection against severe power surges is required. Examples of these applications include MP3 players, cellphones, and laptops. In these applications, the TVS diode is used to absorb harmful voltages that can damage the other components in the circuit. It is also commonly used in automotive electronics to provide ESD protection for electronic chip and circuit components.

The SMCJ6.5CAE3/TR13 works on the premise of applying a reverse voltage to protect the components of the circuit. If voltage exceeds the breakdown value, then the diode conducts current in the reverse direction. This prevents the harmful voltage from causing damage to the integrated circuits and other components of the circuit. The reverse current serves to shunt the harmful voltage away, and hence provide protection against the harmful effects of the ESD, EFTs and lightning strikes.

Once the current has been shunted to ground, the diode can then recover to its original condition. The recovery time can vary depending on the capacitor connected to the diode, as well as other load related parameters. In general, the recovery time can be between 100 and 1000 nanoseconds.

In summary, the SMCJ6.5CAE3/TR13 is a TVS diode designed to provide bidirectional protection against surges, ESD, EFTs and lightning. It is mainly intended for use in applications where protection against severe power surges is required. The diode works through applying a reverse voltage to protect the circuit components from damage, and the recovery time varies depending on the capacitor and load parameters.

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