VDRH14M030BSE

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TVS diode is a highly efficient form of voltage regulator that protects various electronic devices against overvoltage or transient surges. TVS Diode, also known as Transient Voltage Suppression, is a released form of thyristors that protects against power surge events. Varistors, MOVs (metal oxide varistors), and TVS Diodes are the most frequently used type of protection elements on circuit boards.

One of the most popular type of TVS Diode is VDRH14M030BSE which has many applications in the electronic industry. VDRH14M030BSE is a unidirectional (Bi-directional) Transient Voltage Surge Suppressor (TVSS) Diode, operating on a 120 volts, with 14 watts maximum power rating. This diode limits the amount of voltage that passes through it. It is used to protect sensitive optical, voltage-controlled, and power-electronic devices from voltage surges due to inductive load switching, lightning and electrostatic discharge (ESD).

VDRH14M030BSE has the ability to absorb and dissipate high amounts of transient energy, up to 500 joules. It is designed to provide protection for general-purpose data transmission lines, from lightening ESD, electro-magnetic interference (EMI), electro-static discharge (EMI) and other types of power surge events.

These devices have an integrated mechanism that instantly blocks any voltage that is higher than its breakdown voltage. When the voltage reaches its breakdown value, a valve is opened, allowing the current to flow and dissipate excess energy in the form of heat. The diode also acts as a transient suppressor or clamping element which means it holds the voltage at a safe level for a period of time until the surge is passed. These properties make the diode an ideal protection device for electronic circuits and components that may be subjected to high voltage and transient voltage.

The working principle of VDRH14M030BSE starts with the depletion mode MOSFET. This MOSFET keeps the diode in forward bias when the over or transient voltage is applied on the data terminal. When the voltage goes above the rated breakdown voltage of the diode, it immediately activates the MOSFET and allows the current to flow through the diode from the diode\'s anode to the diode\'s cathode. As the current passes through the diode, excessive energy is released in the form of heat which limits the voltage rise beyond the breakdown voltage.

At the time of the rise of voltage, the MOSFET will turn on and turn off when the voltage reaches its lower resistance. On the other hand, when the voltage decrease, the MOSFET will gradually turn off and restore the diode to its forward bias phase. By this action, the excessive voltage can be allowed in and out safely and quickly without damaging the circuit.

VDRH14M030BSE is a widely used diode for protecting electrical systems from overvoltage and transients. This diode is used to protect communication equipment, clock circuitry, processors, controllers, power supplies, automotive systems and many other systems from over or transient voltage surge. It offers effective protection against voltage surges, ESD events and also helps to protect the system from power quality problems like ringing, spike and other transients.

These TVS diodes provide high-speed switching, can be used in high-frequency circuits, provide low power losses, and are capable of providing a wide variety of protection levels for transient and overvoltage applications. This type of TVS Diodes are ideal for use in communication systems, computers and other electronics that require reliable voltage and protection from overvoltage incidents.

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