SMBG48A-M3/5B

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When it comes to transient voltage suppression (TVS) diodes, SMBG48A-M3/5B is one of the most commonly used products. It is part of the diode-based surge protective devices and is designed to protect against rapidly changing levels of voltage surges in sensitive electronic circuits. It has a wide range of applications that include automotive, avionics, control, telecom, and data communications. The SMBG48A-M3/5B offers protection from over-voltage with an over-voltage clamping voltage of 48V. It is designed to guard against ESD (electrostatic discharge), EFT (electrical fast transients), and lightning. The surge current rating of this diode is 5kA (8/20us).

The SMBG48A-M3/5B is a surface mount device with a choice of axial or radial leaded packages. It has a low forward voltage, very fast response time, and low leakage current. It also has low capacitance. These features provide superior ESD protection. The diode has no positive or negative polarity; it can be used in either direction without affecting its function. It is also capable of withstanding multiple pulses far beyond standard surge current requirements.

The working principle of the SMBG48A-M3/5B is relatively simple. In the event of an over-voltage surge, the voltage exceeds the diode’s breakdown voltage, which causes the diode to become reverse-biased, and the surge current to be dissipated. The resistance of the diode increases, limiting the current flow and protecting the circuit. Due to the fast response time of the diode, it is able to react quickly and dissipate the energy before it reaches the vulnerable components of the circuit. The diode remains in an off-state until the voltage dissipates below the breakdown voltage.

The wide range of applications and the simple yet effective working principle make the SMBG48A-M3/5B an ideal choice for transient voltage suppression. It is reliable, durable, and cost-effective, making it a popular choice for a variety of electronic applications.

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