SA10AHR0G

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TVS (Transient Voltage Suppressor) Diodes are dedicated to protecting devices from transient electrical over-voltage conditions. The SA10AHR0G application field commonly includes application in Automotive, Computer, Consumer, Industrial, and Telecommunications equipment.

The SA10AHR0G TVS diode is a SMA (Surface Mounted Assembly) construction with an operating voltage rating of 10V and a breakdown voltage between 11.9 ~ 13.2 volts (at Ipp of 10A). This part belongs to the SA10 Series which also includes variants of 10V, 14V, and 16V.

The SA10AHR0G offers improved effectiveness and reliability against electrical transients due to its reverse stand-off voltage (VWM) and operating junction temperature (TJ) ratings. The maximum peak pulse power dissipation (Ppp) of the device is 1.2KW (for 10/1000µs surge). This part also has a lower breakdown voltage over temperature of 16V with a typical reverse stand-off voltage of 11V at 25°C.

It is designed to protect various types of electronic equipment from damage due to overvoltage caused by static discharges or other electrical overstress sources such as load dump voltage, pulse voltage, ESD, and load switching. The device integrates an anode, cathode, and internal electrostatic discharge protection into a single package, which helps reduce board space and products cost.

The SA10AHR0G also has an integrated diode reverse polarity clamp feature to protect equipment from reverse voltages that can happen due to incorrect batteries, wrong power supplies, or other transients. It also features an integrated back-flowing diode to prevent false studies and reverse current flow from the load.

The working principle of the TVS diode is dependent on the device\'s breakdown voltage. When the breakdown voltage is exceeded, the device will "clamp" the voltage and then begin to limit the current that flows through it. This is due to a phenomenon known as avalanche breakdown, where a combination of high electric fields and high temperatures cause electrons to rapidly and uncontrollably move between the anode and cathode and create an avalanche current with a power surge.

This phenomenon creates a reduced forward voltage across the device that the current can travel through, which helps to protect the devices from ESD or other electrical overstress transients. The device then slowly recovers after the event and reverts to its original, pre-event, state. This allows the device to remain functioning, but it may also deteriorate after multiple transient events if the surge current exceeds the device\'s peak pulse power and response time.

To summarize, the SA10AHR0G application field includes Automotive, Computer, Consumer, Industrial, and Telecommunications equipment and its working principle depends on the breakdown voltage in exceeding the voltage limit. The device will then start to limit the current that flows through it by clamping the voltage with a phenomenon known as avalanche breakdown that happens due to electrical overstress. The device will then slowly recover after the event to keep functioning and avoid deterioration.

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