3.0SMCJ12CATR

Voltage - Clamping (Max) @ Ipp:	19.9V
Supplier Device Package:	SMC (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	3000W (3kW)
Current - Peak Pulse (10/1000µs):	150.6A
Series:	--
Voltage - Breakdown (Min):	13.3V
Voltage - Reverse Standoff (Typ):	12V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes
The 3.0SMCJ12CATR is a unidirectional Transient Voltage Suppressor (TVS) diode used to protect sensitive electronic circuits from damaging electrical transients. It is one of the components widely used in the protection of sensitive circuits and it consists of two major components—a Zener diode and a voltage clamp. The diode is designed to provide a low-capacitance protection for a wide range of common industrial, automotive, and general-purpose applications.
The 3.0SMCJ12CATR TVS diode is a unidirectional break-over type device. It has an ultra-low capacitance to reduce the impact on high-speed signal data lines due to the compact size of the component. It can clamp any transient overvoltages above its breakdown voltage and redirect them to ground or to any other components connected in parallel. This makes it possible to create transient protection between two connected systems. The diode also features a fast response time which can reach just nanoseconds. This also makes it ideal for protecting sensitive components such as light emitting diodes (LEDs) and other semiconductor-based products from overvoltage transients.
The 3.0SMCJ12CATR TVS diode is suitable for the protection of pulses or surges on data and communication lines and can be used to protect intricate electronic circuits from the damaging effects of these transients. It is also suitable for the overvoltage protection of sensitive electronics such as LEDs. The diode can also be used with specialized surge protection devices to provide additional protection for sensitive electronic circuits.
When it comes to its application field, the TVS diode can be found in applications requiring ESD, automotive, and I/O side overvoltage protection as well as those that require high speed protection. It is also used in the protection of high speed digital and analog circuits, such as Ethernet, coaxial cable assemblies, and USB converters. Other applications where the diode can be found include DC – AC converters, battery charging circuits, and any other device that requires protection from electrostatic discharge (ESD).
The working principle of the 3.0SMCJ12CATR TVS diode is based on the operation of a Zener diode and a voltage clamp. When a voltage transient greater than its breakdown voltage is applied across the device, the Zener diode breaks down, and the voltage clamp clamps any additional voltage to the design voltage. This ensures that the connected equipment is protected from the impulse or surge. The response time of the device is very fast, allowing it to provide protection from overvoltage transients in a short period of time. It is also able to dissipate high energy transients by connecting the voltage regulator to the ground.
In conclusion, the 3.0SMCJ12CATR TVS diode is a great protection solution for a variety of applications which require fast and high energy protection from overvoltage transients. It is a unidirectional component and consists of a Zener diode and a voltage clamp, which can provide transient protection between two connected systems. Its fast response time and low capacitance make it ideal for protecting sensitive electronics and it can be found in a wide range of applications such as automotive and I/O side protection, DC-AC converters, battery charging circuits, and high speed digital and analog circuits.

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