3.0SMCJ9.0CATR

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A Transient Voltage Suppressor (TVS) diode is an electronic device designed to protect electronic circuits from overvoltage transients, such as those caused by lightning, electrostatic discharge (ESD), or electrical fast transients (EFT). The 3.0SMCJ9.0CATR is a very popular TVS diode due to its ability to provide very high clamping voltage and low let-through energy. The environmental operating temperature range of the 3.0SMCJ9.0CATR is -55 to +125 degrees Celsius.

The 3.0SMCJ9.0CATR is typically used in AC/DC power supply and automotive applications including circuit boards, protection of communication lines, EMI filtering, and overvoltage/overcurrent protection. It is also used in a wide variety of other circuits such as printer boards, test equipment, batteries, as well as in automotive systems like air bags and cranking systems. The 3.0SMCJ9.0CATR is suitable for use in both high and low voltage applications.

The working principle of the 3.0SMCJ9.0CATR is to provide a clamping voltage by offering a low impedance path between the positive and negative rails of an AC or DC power supply. When an overvoltage condition occurs, the TVS diode starts to conduct by rectifying the AC voltage and the voltage across the TVS diode begins to drop until it reaches the breakdown voltage (Vbr) of the diode. The diode will then maintain the voltage across it at this point, clamping the voltage and protecting the circuit.

The 3.0SMCJ9.0CATR provides excellent transient protection. It has a very low leakage current, high holding voltage, and fast response time. The breakdown voltage is guaranteed not to fall below 950V and the maximum forward current is 9.0A at +125°C. Additionally, it has a high surge/pulse capability with a peak pulse power rating of 1400 watts.

In conclusion, the 3.0SMCJ9.0CATR is a very versatile Transient Voltage Suppressor diode with a wide range of applications. Its ability to provide low impedance paths and low let-through energy make it ideal for many applications. Its environmental operating temperature range of -55 to +125 degrees Celsius also makes it a valuable asset in many AC/DC power supply and automotive circuit designs, as well as other applications.

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