3.0SMCJ26CATR

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The 3.0SMCJ26CATR device is an ultra-fast, low capacitance, unidirectional transient voltage suppressor (TVS) diode made by Vishay Semiconductors. It is designed primarily to protect sensitive electronic equipment from damage due to electrical transients generated by automotive and industrial sources. The device has a breakdown voltage of 26 volts, a peak pulse power of 420 watts, and a peak pulse current of 8.2 amps (IPP at 10/1000 μs).

The 3.0SMCJ26CATR device is made using specialized technology that is tailored to meet the parameters required for protection against transients in the automotive environment. This includes the use of special design techniques to minimize the capacitance of the device across a wide temperature range, and the use of a lead-free solder composition that is compatible with environmental regulations. The device is also designed to meet the thermal requirements of the automotive environment, including heat dissipation and thermal cycling effects.

The device is capable of suppressing up to 8.2 amps of peak pulse current and 26V of breakdown voltage. It has an extremely low capacitance of 0.24 pF, making it suitable for application in high-speed signal environments. The device also has a very low reverse relationship leakage current of 1.2 μA at 10V and 0.85 μA at 25.5V.

The 3.0SMCJ26CATR device is commonly used in automotive applications such as power trains, engine control modules, electronic fuel injection (EFI) systems, and airbag deployment systems. It is also used in industrial applications for surge protection of equipment such as circuit cards, drivers, motors, and light sources. The device is well-suited for use in these applications due to its low capacitance, low leakage, and high surge current ratings.

The 3.0SMCJ26CATR works on the principle of avalanche breakdown. In this mechanism, an electric field is applied to a semiconductor material which causes the electrons to move around freely until they reach a critical energy level. At this energy level, a large number of them break free from the valence band, creating an avalanche of charge carriers that can cause a very rapid increase in current. The device is designed to take advantage of this avalanche breakdown effect by employing a specifically designed junction structure.

The 3.0SMCJ26CATR is a reliable and robust TVS diode designed for transient voltage suppression in a variety of automotive and industrial applications. Its low capacitance and high surge current ratings make it an ideal choice for applications requiring protection against transients. It is also designed to meet the thermal requirements of automotive environment, including heat dissipation and thermal cycling effects.

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