SMDA12C-5TR

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TVS diodes, Transient Voltage Suppressors (TVS), are types of semiconductor used to protect electronics against the harmful effects of impulses on the power supply. In the case of the SMDA12C-5TR, it is a surface-mount 12V unidirectional TVS diode designed for secondary protection applications. It is typically used in sensitive data line protection that requires a fast response time and can withstand higher operating temperatures than standard diodes.

The SMDA12C-5TR has a low breakdown voltage at 11.6 V and a capacitance of 1250 pF. It is designed to suppress transients up to 5A. The device is characterized for repetitive peak pulse currents from the 10/1000μs wave strictures up to the 8/20μs wave forms levels, which makes this device ideal for protection from fast transient surges. It is equipped with ESD protection, eliminating the risk of component damage and system failure caused by Electrostatic Discharge.

The SMDA12C-5TR can be used for various applications such as RS232, 485 and 422 data line protection, audio and video equipment, internal power supplies, and High Speed i/o ports. The device has an operating temperature range of -55 to 150°C and a storage temperature range between -65 and +150°C, allowing it to be used in a wide range of temperatures so it can be used in extreme conditions. This makes it particularly effective for circuit protection in a variety of applications.

The main principle of a TVS diode is to conduct current when the voltage across it exceeds a specified voltage, known as its \'Breakover Voltage.\' When the voltage across the diode rises so that its breakdown voltage is exceeded, it turns on. When the voltage has passed its peak and starts to decay, the diode \'clamps\' the voltage, preventing it from rising further. The device then begins to turn off, and the voltage across it returns to its normal level until the current through it stops.

In the case of the SMDA12C-5TR, the breakdown voltage starts at 11.6 V and may be up to 13.2 V. This allows it to clamp the voltage when it exceeds 11.6 V before it can cause damage to the electronic system. Additionally, the SMDA12C-5TR is designed to withstand repetitive peak currents of up to 5A, depending on the waveform. This is a very useful feature as it allows the diode to respond to transients quickly and also reliably sustain peak currents, so it can protect the system effectively against damage caused by overvoltages.

The SMDA12C-5TR can be used in a variety of applications thanks to its low breakdown voltage and robust design. It is a reliable and effective way to protect circuits from fast transient surges. Besides this, its ESD protection helps to prevent damage caused by Electrostatic Discharge, which can cause permanent system failure. The SMDA12C-5TR is a versatile and reliable TVS diode suitable for a variety of applications.

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