SMLJ85A

The SMLJ85A is a state-of-the-art Transient Voltage Suppressor (TVS) diode with advanced protection features for use in a variety of applications. It is designed to monitor and limit the peak transient voltage generated by an external event, such as a surge, to a safe level.

The SMLJ85A is a bidirectional device, designed for use in protection applications in both AC and DC circuits. It features a wide operating temperature range of -55°C to +125°C, and is available in a variety of packages.

Application Field of SMLJ85A

The SMLJ85A is designed for a wide range of applications such as surge protection in power converters, surge protection in DC link filters, EMI/RFI interference suppression, and overvoltage protection in high-speed digital lines.

The SMLJ85A can also be used in automotive and industrial control systems, telecommunication systems, and medical equipment, providing excellent protection against surges and overvoltages.

Working Principle of SMLJ85A

The SMLJ85A is a voltage-dependent device. When a surge event occurs, the increased voltage across the device will cause the diode to become conductive and offer a low impedance path for the transient current to flow through. This limits the peak voltage and current, thereby protecting the connected circuitry from damage.

The SMLJ85A also features built-in thermal protection to prevent it from overheating due to excessive current draw. In the event of an overload, the device will act as an open circuit, limiting the amount of current that can flow through the device. This eliminates the need for additional protection circuitry.

The SMLJ85A is also designed to provide a fast response time, allowing it to detect and limit transient voltages with speeds of less than 1 nanosecond. This ensures that the connected circuitry is protected from potentially damaging transients.

The SMLJ85A is an excellent choice for applications that require fast response times and reliable surge protection. It is an ideal solution for a wide range of applications including power converters, DC link filters, EMI/RFI interference suppression, and overvoltage protection in high-speed digital lines.