SMF54A-M3-08 Circuit Protection

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A TVS (Transient Voltage Suppressor) Diode, or more commonly referred to as a “spike suppressor” or “surge suppressor” is a protective device used to safeguard sensitive electrical and electronic equipment from sudden electrical power surges or spikes. It is designed to absorb the excessive energy and immediately dissipate it as heat, safely allowing the electrical system to operate as normal, without any disturbances.

The SMF54A-M3-08 is a general purpose TVS diode from Diodes Incorporated, designed to be used in a wide range of consumer and commercial electronics. The device is designed to protect electronic equipment from very fast transients, and is capable of holding off high voltage transients up to 5.4kV ESD, as per IEC61000-4-2 specification. It has a bi-directional, non-polar construction with low forward voltage and reverse leakage current, enabling it to withstand repeated heavy spikes and still maintain a desirable low leakage parameter. The diode features low VF (forward voltage drop) and fast response, and is constructed using a proprietary high-power LFPAK package, offering a superior thermal performance for circuit protection applications.

The SMF54A-M3-08 is available in surface mount, SMD 0808 case size with an impressive peak pulse power rating of 23A (10/1000 μs). This TVS diode is suitable for a variety of circuit protection applications, including automotive and industrial equipment, computer peripherals, telecommunications systems, consumer electronics and consumer appliances. It is also compliant with the RoHS directive, making it a great choice for many environmental friendly applications.

When it comes to the working principles of the SMF54A-M3-08, it operates like any other TVS diode. When an overvoltage spike enters the diode it implies a forward potential drop across the diode. This in turn causes the diode to break down and recirculates the excessive energy through its internal joule heating phenomenon, thus limiting the voltage seen at the protected device. With the ability to reset itself and repeat this process over and over again, the SMF54A-M3-08 offers superior protection against voltage transients.

Thanks to its remarkable design features, the SMF54A-M3-08 from Diodes Incorporated presents a great option for many circuit protection applications requiring a fast response time and superior thermal performance. The SMF54A-M3-08 is also available in very competitive pricing, making it a great value.

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