PESD1206Q-140

TVS - Diodes

TVS - Diodes, also known as transient voltage suppression diodes, are specially designed diodes with the purpose of protecting sensitive electronic components from potential damage from a sudden voltage surge. PESD1206Q-140 is a three-terminal semiconductor micro-device that is used for over-voltage protection.

Application Field

The primary application fields in which PESD1206Q-140 is used is in consumer electronic circuits and in automotive electronics, such as ECUs. It is also used in other sensitive and high-precision electronic circuits, including those found in laptop PCs and cellular telephones. The device is capable of providing a solid short-circuit protection for a broad range of current flow levels.

Working Principle

PESD1206Q-140 works by monitoring the voltage flow in the circuit, detecting when the voltage exceeds the pre-set level - the clamping voltage - to protect against over-voltage conditions. In order to do this, the device has three terminals: the anode, cathode and guard. A voltage is applied to the anode and cathode, with the voltages at the anode being higher than the voltage at the cathode. When the voltage between the anode and the cathode exceeds the clamping voltage, a current flows between the anode and the cathode, thus dissipating the energy. The amount of current that is dissipated is determined by the guard terminal.

The device can be used to protect against a wide range of over-voltage conditions, from peak transients, such as those created by lightning strikes, to conditions caused by power supply issues. The device can be used in both single- and dual-supply configurations, and is suitable for both AC and DC applications.

Conclusion

The PESD1206Q-140 is a versatile protection device that can offer protection from a wide variety of over-voltage conditions. It is suitable for a broad range of applications, from consumer electronics to automotive electronics. The device is easy to use and can be quickly installed in any circuit, offering the user the assurance of knowing that their sensitive electronic components are protected from potential over-voltage conditions.