3.0SMCJ85CATR Circuit Protection

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The 3.0SMCJ85CATR is a Transient Voltage Suppressor diode (TVS) that is used to protect circuits from high voltage spikes. It is a bi-directional device, with a low-clamp voltage and low leakage current. A TVS diode is similar to an ordinary diode, except that it has a higher breakdown voltage. It is designed to provide protection against voltage transients which occur in the power line, due to electrostatic discharge (ESD), lightning strikes, induced surges, etc.

The 3.0SMCJ85CATR distinction from other TVS devices is its high surge capability. It is rated at 85A peak pulse power, which makes it perfect for protecting high-powered components, such as microprocessors, transistors, etc. The device also has a fast response time; it undergoes avalanche breakdown when the voltage reaches its peak, preventing significant voltage transients from permanently damaging the circuit.

The 3.0SMCJ85CATR is a combination of two diodes in one package. The two diodes are connected in parallel, with one of them functioning as the primary protection diode and the other as the secondary protection diode. This design makes the device capable of providing protection in both directions, with the two diodes clamping the voltage at the same level. The two diodes also work together to ensure a fast response time and excellent surge current protection.

The 3.0SMCJ85CATR can be used in a variety of applications, such as in automotive, aerospace, medical, and consumer electronics. It is especially suitable for protection of high-power loads, such as CPUs, display panels, transistors, etc. It can also be used to protect circuits from over-voltage due to switching transients, ESD, and lightning strikes. This makes it an ideal TVS diode for a broad range of applications.

The working principle of the 3.0SMCJ85CATR TVS diode is based on avalanche breakdown. When a transient voltage occurs, the diode\'s P-N junction experiences an electric field that is strong enough to create a potential barrier. This barrier causes the electrons in the junction to accelerate, creating energy. The energy is then dissipated as heat, preventing current flow through the device, thus protecting the circuit.

In summary, the 3.0SMCJ85CATR is a bi-directional Transient Voltage Suppressor diode that provides excellent protection against voltage transients. It has a high surge capability, fast response time, and is suitable for a wide range of applications. Its working principle is based on avalanche breakdown, which ensures that the diode can quickly respond to voltage transients and protect the circuit from damage.

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