SMF75A-TP Circuit Protection

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction: TVS - Diodes are components that protect against over voltage. The SMF75A-TP is a transient voltage suppressor diode that is widely used to protect sensitive circuits against voltage transients. In this article, we will discuss the SMF75A-TP application fields and working principle.

SMF75A-TP Application Field

The SMF75A-TP is a three-terminal, low power, surface mount transient voltage suppressor diode that is designed for high speed switching applications. It is widely used for applications such as high speed signal protection, over voltage protection, and ESD (electrostatic discharge) protection. Its high surge capability makes it an ideal choice for high power applications such as telecom or computer power supplies.

Working Principle

The SMF75A-TP is designed to protect against high voltage transients, or spikes, that can damage sensitive circuits. It operates by clamping the voltage spike to a level that the circuit can tolerate, thus limiting its effects. The diode holds the voltage at the clamping voltage until the spike dissipates and then collapses back to the normal operating state. The diode has a reverse breakdown voltage of 26 volts and a clamping voltage of 25.7 volts at 5 amps.

The diode works by using a P-N junction, an active layer located between two oppositely charged regions. The P-N junction acts as a barrier that restricts current to flow in one direction. When a voltage is applied across the P-N junction, a small amount of current flows, forming a depletion region. This depletion region prevents any additional current from flowing. If the applied voltage is higher than the breakdown voltage, then the junction suddenly breaks down and allows current to flow. The current then clamps the voltage to the breakdown voltage.

The SMF75A-TP is characterized by a low leakage current in the reverse bias state, a low capacitance for high frequency applications, and is designed to withstand ESD and other surge situations. It can be used in a wide variety of applications such as telecom and data communication equipment, PC peripherals, and consumer electronics.

Conclusion

The SMF75A-TP is a three-terminal, low power, surface mount transient voltage suppressor diode. It is designed for high speed switching and over voltage protection applications. It works by clamping the voltage spike to a level that the circuit can tolerate and has a reverse breakdown voltage of 26 volts and a clamping voltage of 25.7 volts at 5 amps. It is ideal for high power applications such as telecom or computer power supplies.

The specific data is subject to PDF, and the above content is for reference