SMA6J26A-E3/5A

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TVS diodes (Transient Voltage Suppressors) are protection devices specifically engineered to protect sensitive electronic components against electrical surges caused by events such as electrostatic discharge, electrical transients, lightning, and power cross. The SMA6J26A-E3/5A is a member of this family of components. It is a uni-directional, low-capacitance, two-terminal device developed to protect high-speed data lines such as USB, HDMI, V-by-One, and more.

The SMA6J26A-E3/5A is widely used in industries such as the automotive industry, consumer electronics, and healthcare, where robust electrical protection is critical. It belongs to a sub-range of TVS solutions, VARTM (Voltage-ApplicationsResistive- Working principle). This technology utilizes a resistive voltage clamp that is effective against a wide dynamic range of voltage transients.

The SMA6J26A-E3/5A is typically used to protect multiport data lines. It is ideal for protecting high-speed circuits subjected to ESD dosing. The device can absorb up to 68A of current during peak pulse events, overvoltage, and EMI/RFI events. It also offers low leakage current and is compliant with the IEC61000-4-2 standard for immunity against ESD.

The working principle of the SMA6J26A-E3/5A is quite simple. It is composed of a snap-back device that clamps the voltage using a resistive voltage clamp to a predetermined voltage set-point. When the voltage exceeds the set-point, the resistive clamp snaps into action and reduces the voltage. The protection device also has an R-C snubber network, which is used to reduce the EMI/RFI interference. The device also contains a suppression diode, which controls the current flow between the data lines and the ground during multiple over-voltage events.

In summary, the SMA6J26A-E3/5A is a two-terminal, low-capacitance, uni-directional TVS device used to protect high-speed data lines from overvoltage transients and EMI/RFI interference. Its working principle is based on a snap-back device that utilizes a resistive voltage clamp. The device can absorb up to 68A of current during peak pulse events and is compliant with the IEC61000-4-2 ESD immunity standard.

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