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TVS - Diodes

Transient voltage suppressor diodes, or TVS diodes, are a type of passive electronic components designed to suppress short bursts of high voltage (also called transients) and offer electrical protection. They are similar to zinc oxide varistors, but better at handling short-term power surges. TVS diodes are available in a variety of forms such as unidirectional, bidirectional, through-hole and surface-mount. There are many different types and applications for TVS diodes, and one example is the SMDA12C-5/TR13 diodes.

SMDA12C-5/TR13 Diodes

SMDA12C-5/TR13 diodes are unidirectional, high power suppression television suppressors suitable for use in 12V systems. Their electrical properties include: breakdown voltage of 12V, voltage clamping of 5V, peak pulse power rating of 1250W, and leakage current of 1.0µA. These diodes are designed to protect sensitive electronic components from the electronic noise generated by rapid rise surges on the power supply lines. They are suitable for a variety of applications in electronic systems including: personal computers, peripherals, telecom equipment, and industrial equipment.

Application Field

SMDA12C-5/TR13 diodes are most commonly used in automotive applications, such as voltage protection of power circuits, ECUs, and airbag systems. They are also used in controllers and logic systems, which are sensitive to electrical noise and can malfunction due to voltage transients. The diodes can also be used in LCD display systems or other equipment which includes lines susceptible to overvoltage, and power tools.

Working Principle

SMDA12C-5/TR13 diodes operate using a diagram that is called an avalanche breakdown mechanism. When a high energy surge occurs the breakdown voltage is reached and the electrons are pushed forward in a specific path, this creates a semi-conductive column inside the body of the diode. This column offers a lower-resistance current path than in the normal diode’s operation and is able to clamp the voltage spike to the breakdown voltage level. As the voltage at the breakdown level is clamped and controlled, the diode is then able to protect the sensitive components down the line.

SMDA12C-5/TR13 diodes are a great way to protect sensitive electronic components from the electronic noise generated by rapid rise surges on the power supply lines. These diodes are designed to be used in many different applications, including automotive, industrial, and LCD display systems. They operate using a highly advanced avalanche breakdown mechanism, where they are able to clamp the voltage spike down and protect sensitive components.

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