3.0SMCJ12ATR

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The 3.0SMCJ12ATR is a transient voltage suppressor diode designed to protect circuits from electrical transients such as electrostatic discharges (ESD) and other forms of voltage spikes. In particular, the 3.0SMCJ12ATR is a uni-directional device that is typically used to protect electronic equipment from voltage spikes on sensitive components such as the power lines or data lines in a system.

The 3.0SMCJ12ATR is an encapsulated chip device with an analog similarity of a single layer diode bridge. It works on a terminal-to-terminal system, and features two or more active electrodes. All the diodes are connected between the top and bottom electrodes so that when over voltage occurs, the excess energy is diverted to the diode side and absorbed as heat.

The3.0SMCJ12ATR is primarily used to suppress transient voltage surges in automotive, industrial, consumer and computer applications. It is best suited for applications where high currents require high levels of suppression to prevent damage. Common applications include: automotive spark plugs and regulators, electrically powered vehicles, gasoline pumps, telecommunication line protection, and data processing equipment.

The working principle of the 3.0SMCJ12ATR is based on avalanche breakdown. This occurs when the diode experiences a sharp increase in voltage, beyond its circuit design threshold. When this happens, the diode starts to break down and the current flowing in the circuit increases exponentially, reaching extremely high values.

The device is able to limit the maximum voltage to a value known as the avalanche voltage, which is typically between 5 and 20 volts. This provides the protection needed to protect the circuit from damage. This protection is achieved by diverting the excess energy to a specialized diode so that it does not damage the component it is protecting.

In summary, the 3.0SMCJ12ATR is a transient voltage suppressor diode designed to protect circuits from voltage spikes. It works based on the principle of avalanche breakdown, diverting the excess energy to a specialized diode and limiting the maximum voltage to a safe level. The device is used in automotive, industrial, consumer and computer applications, allowing for high levels of suppression to prevent damage.

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