SMDA12C-4/TR7

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TVS (Transient Voltage Suppressor) Diodes are specifically designed diodes intended for providing protection from voltage transients. The SMDA12C-4/TR7 is an ideal example of a TVS diode. It is a bi-directional silicon avalanche TVS diode with a Working peak reverse stand-off voltage of 12V and a clamping voltage of 15V, making it capable of handling large current transients with a low clamping ratio.

The SMDA12C-4/TR7 is designed for low inductance protection of sensitive electronic circuits. Its features include low reverse leakage current, a wide operating temperature range that keeps its characteristics throughout a long life, and a very low capacitance rate.

Application Field

Due to its technical and design features, the SMDA12C-4/TR7 can be used for various applications. Its low clamping voltage and low inductance protection make it suitable for protecting sensitive electronic components such as microprocessors, FPGAs, ASIC chips, and voltage-sensitive ICs from high-voltage transients. It is also suitable for automotive applications and telecommunication applications, as it is able to withstand high surge current at low clamping voltages.

Working Principle

The working principle of the SMDA12C-4/TR7 is relatively simple. When the device is operating normally, i.e when the input voltage is lower or equal to the peak reverse stand-off voltage, the diode is in its off-state, meaning it is not conducting any current. However, when the input voltage exceeds the peak reverse stand-off voltage, the diode enters its on-state, meaning it starts conducting a current. This current is then drawn off and dissipated, thus protecting the circuit from the high-voltage transient.

The SMDA12C-4/TR7 is designed for protection of various types of lines, such as differential input lines, logic systems, and AC power lines. It is able to provide protection from voltage transients in the range of 10V to 12V, making it ideal for protecting sensitive electronic components from the damages caused by transient voltages. Furthermore, it features a fast response time to voltage transients, protecting the device from the damages caused by high-voltage transients in just a few nanoseconds.

In conclusion, the SMDA12C-4/TR7 is a robust TVS diode intended for providing protection from voltage transients. Its low-inductance protection and low clamping voltage make it suitable for protecting sensitive electronic components, such as microprocessors, FPGAs, ASIC chips, and voltage-sensitive ICs. Furthermore, its fast response time and wide operating temperature range ensure that the device can provide reliable and effective protection against voltage transients.

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