SMP28-M3/85A Circuit Protection

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TVS - Diodes are electrical components specifically designed to protect sensitive circuits from damage caused by voltage and current surges. They are manufactured in a wide variety of devices including the SMP28-M3/85A. The features of the SMP28-M3/85A are as follows:

Applications of the SMP28-M3/85A

The SMP28-M3/85A is designed to protect against transients such as ESD, EFT, CM transient, lightning strike, and surge. The protected elements include power circuits, bus systems, input/output (I/O) interfaces, and other sensitive equipment in electronic systems. It is an ideal device for applications such as solar photovoltaic (PV) systems, industrial automation, energy storage, medical, automotive, industrial machinery, thin film transistor (TFT) displays, security systems, consumer electronics, and digital home appliances.

Working Principle of the SMP28-M3/85A

The SMP28-M3/85A works by quickly diverting excess transient voltage and current away from a protected circuit to ground. This is achieved by a sharp increase in current when an overvoltage is detected, placing the diode in avalanche breakdown. This causes the diode to clamp the voltage below a defined threshold, thus protecting the protected elements.

The SMP28-M3/85A is also able to protect two lines with one device, with its dual protection principle. In this mode, two diodes are placed parallel and connected to two different nodes. This allows one diode to absorb the transient, while the other clamp the voltage below the threshold. It also offers fast response times of less than 100ns, and a wide operating temperature range of -40 to +85°C. Additionally, the SMP28-M3/85A has been designed with ergonomics in mind, with its ultra-small DFN2020 mini package size.

In summary, the SMP28-M3/85A provides fast and reliable protection from a wide range of transient threats, making it an ideal choice for sensitive electronic circuitry, and power protection applications.

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