TV15C161JB-HF Circuit Protection

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TVS - Diodes are an important class of devices that provide multiple levels of voltage protection against over voltage, surges, and other transient voltage disturbances. The TV15C161JB-HF is a compact, low differential voltage protection device designed for transient voltage surge suppression (TVSS) applications. It works by clamping the incoming voltage to a pre-defined voltage level, limiting the voltage seen by the load. This protects the load from damaging and possibly destructive voltage transients.

The TV15C161JB-HF application field consists of typical communication ports, including RS-232, High speed CAN/LIN Bus, USB, and MIL-STD-1553B. This device is also suitable for automotive and remote switch machines. In addition, with its ultra-low capacitance and integrated reverse polarity protection, the TV15C161JB-HF is an ideal solution for ESD protection applications in industrial environments, such as automotive, electronics, defense, robotics and medical equipment.

The working principle of the TV15C161JB-HF is based on the avalanche breakdown principle. When the voltage on the diode rises to a certain level, typically referred to as the breakdown voltage, the power supply current starts to flow and the diode starts to conduct current. This current is limited by a very low internal resistance. The internal resistance of the TV15C161JB-HF is typically in the range of a few milliohms. The lower the resistance, the higher the current that can be sustained without risk of damage to the device.

To limit this current to a safe level, the breakdown voltage is kept at a level that results in a very low reverse current and a very low power dissipation. This low power dissipation is essential to ensure the device remains in an avalanche state since the device is susceptible to excessive temperatures. The TV15C161JB-HF achieves this very low power dissipation by utilizing a unique, low capacitance design that maintains the avalanche current at very low levels, even at higher incoming voltage levels.

The TV15C161JB-HF also incorporates reverse polarity protection. In the event of a reverse voltage surge, such as a lightning strike, the TV15C161JB-HF will act as a diode to protect the system from damage. The reverse voltage protection feature of this device is designed to protect the system against reverse voltage polarity, thus preventing catastrophic failure.

The TV15C161JB-HF also features transient voltage surge suppression (TVSS) protection. This protection helps protect the load against surges and other transient voltage disturbances that may occur due to lightning strikes, electrostatic discharges, power supply transients, or even transients generated from nearby electrical equipment. This TVSS protection is achieved through an internal dV/dt voltage clamp, wherein the voltage across the device is limited to a pre-determined level. The TV15C161JB-HF will also offer current limiting protection, where the current through the device is kept below a predetermined safe level. This current limiting feature of the device helps prevent any potential damage to the load in the event of a surge.

In conclusion, the TV15C161JB-HF is an excellent solution for TVS - Diodes applications. With its low differential voltage protection, reverse polarity protection, and built-in TVSS protection, it provides superior protection against voltage transients. Its low capacitance design also ensures that the device will remain in an avalanche state even under higher voltages. The device is also suitable for a variety of applications, such as communication ports, automotive and remote switch machines, and even industrial environments.

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