1SMB28CAT3

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TVS (transient voltage suppressor) diodes are a kind of protection devices used to protect sensitive electronic components from unexpected transient over-voltage events. The 1SMB28CAT3 is a bi-directional TVS diode that can provide ESD, over-voltage, and over-current protection for various electronic components. It comes with a built-in voltage suppression clamp for high-speed and low-capacitance over-voltage protection, making it an ideal choice for a wide range of applications. This article will discuss the application field and working principle of the 1SMB28CAT3.The 1SMB28CAT3 is designed for use in many different electrical and electronic applications, including automotive, consumer electronics, communication equipment, industrial equipment, and more. It can protect against over-voltage, as well as over-current and electrostatic discharge (ESD) events. It is an ideal choice for data line protection and can help to improve system reliability. The device features a low capacitance of 0.3pF and a breakdown voltage of 28V, making it suitable for protecting sensitive electronic components.In terms of working principle, the 1SMB28CAT3 has two different modes of operation. In the forward connection (also known as linear mode), the device behaves like a normal diode and is designed to limit the voltage at its terminals. In this mode, the device can be used for signal line protection. The second mode of operation is the reverse connection (or clamp mode), where the diode will conduct until the voltage is at a predetermined level. In this mode, the diode can be used to protect against transient over-voltage events.The 1SMB28CAT3 is designed for ease of use and can be mounted directly onto the PCB. It features an extended maximum junction temperature range of -55℃ to 125℃, making it suitable for use in a wide range of applications. The device also has RoHS-compliant lead-free construction, allowing it to meet stringent environmental standards.In summary, the 1SMB28CAT3 is a bi-directional TVS diode designed to provide ESD, over-voltage, and over-current protection for a variety of applications. It features a low capacitance of 0.3pF and a breakdown voltage of 28V, making it suitable for protecting sensitive electronic components. It also has an extended maximum junction temperature range of -55℃ to 125℃, RoHS-compliant lead-free construction, and can be easily mounted onto the PCB. This makes the 1SMB28CAT3 an ideal choice for a wide range of application fields.

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