TV15C450J-G Circuit Protection

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TV15C450J-G are transient voltage suppressors (TVS) diodes that are used for circuit protection for electrical and electronic systems susceptible to voltage transient events such as electrostatic discharge (ESD), surges, and other voltage phenomena. TV15C450J-G diode is a unidirectional (line-to-ground), 14V-15V breakover voltage TVS diode. It is typically used in high surge applications with a surge rating up to 400A peak pulse current.

Application Field

TV15C450J-G are ideal for applications that require high speed and power handling capabilities, such as power-over-Ethernet, automotive, industrial, military, medical, gaming, and networking. They are designed for high levels of surge protection and ESD protection in harsh environments requiring a reliable solution. TV15C450J-G TVS diodes can also be used in automotive systems such as DC/DC converters and ignition systems to protect against voltage transients. Additionally, these diodes are typically deployed in telecom, industrial and military systems to protect sensitive gate inputs of MOSFETs.

Working Principle

TV15C450J-G rely on a zener breakdown voltage mechanism that triggers a current flow path in order to protect its circuit from transient overvoltages. When the polarity of the transient voltage is positive and exceeds the breakover voltage of 14V-15V, the TV15C450J-G diode turns on, quickly clamping the voltage and limiting the surge current. When the polarity of the transient voltage is negative, the diode remains off, and the transient voltages are limited by the zener breakdown of its body diode. Additionally, TV15C450J-G utilizes an avalanche current control element for controlling the peak surge current and limiting the power. TV15C450J-G has a Schottky diode connected in parallel, which adds an extra protection from ESD and provides a higher current handling capability. This Schottky diode is turned off when the breakdown trigger is activated.

TV15C450J-G diode is designed to have the smallest possible on-state resistance, minimizing power dissipation. It also offers an integrated ESD protection rating of at least 15kV, which allows for a very small form factor and can help in reducing the cost of equipment.

In summary, TV15C450J-G is a highly efficient TVS diode used to protect equipment from voltage transients in automotive, industrial, and military systems. It utilizes a breakdown voltage mechanism and an avalanche current control element to quickly clamp the voltage and limiting the peak surge current, while its integrated ESD protection ensures a reliable solution.

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