SLD54-018 Circuit Protection

Transient Voltage Suppressor Diodes (TVSs) are semiconductor devices possessing high working voltages and the ability to absorb large transient energy. SLD54-018 is a type of Terminator, specifically designed for protection against transients. Manufactured using leading-edge, low-voltage, high-speed surge diode, the SLD54-018 maintains its protection capabilities even during high frequency transients.

Applications:

The SLD54-018 is widely used in applications that require fast and precise protection from transients. It is suitable for the protection of electronic equipment such as microprocessors, electronic controllers, digital converters, communication systems, power supplies, and signal conditioning circuits. It can be used to protect against high-voltage transients such as electrostatic discharges, electrical transients, lightning, and induced electro-magnetic interference, as well as to reduce possible damage caused by such transients.

Working Principle:

The SLD54-018 utilizes a metal-oxide-semiconductor field-effect transistor (MOSFET) based protection profile. The SLD54-018 is a two-terminal device with a reverse-blocking capability. In normal operation, the terminal which is connected to ground is kept at a negative voltage, which prevents current flow. When a transient occurs, the voltage across the terminals rises quickly; this causes the gate of the MOSFET to be pulled to the P-channel, allowing current to flow between the terminals. When the transient ends, the voltage across the terminals returns to normal, and the gate of the MOSFET is again pulled away from the P-channel to cut off the current flow.

Conclusion:

The SLD54-018 is a versatile and reliable device designed for the protection of electronic equipment in an extensive range of applications. It provides efficient protection from transients due to its MOSFET-based protection regime, and can be used in high-frequency applications where other devices may be insufficient. Its design makes it suitable for use in a wide variety of applications, including signal conditioning circuits, communication systems, power supplies, and digital controllers.