SMB10J26-E3/5B

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TVS (Transient Voltage Suppressor) diodes are semiconductor devices which offer high levels of protection against voltage transients. The SMB10J26-E3/5B is a type of diode specifically designed to protect output ports on digital devices against electrical overstress (EOS). TVS diodes are also known as clamp diodes, as they act as a clamp to effectively limit the peak voltage on a line.

The SMB10J26-E3/5B is a type of unidirectional diode, meaning that it only allows current to flow in one direction. It has a peak pulse current rating of 10A and a maximum clamping voltage or Vc, of 26V. This makes it an excellent choice for use in applications where the maximum voltage on the line to be protected is 26V or less. The diode also offers excellent ESD (Electrostatic Discharge) and EOS (Electrical Overstress) protection.

The SMB10J26-E3/5B is well suited for use in applications such as lightning protection for Ethernet ports, DC/DC converters, and automotive electronics. It can also be used in automotive data bus systems, telecom equipment and other digital signal lines. The diode offers protection for digital components from the common EOS damage caused by accidental application of surge voltages.

The working principle of the SMB10J26-E3/5B is based on the avalanche breakdown of the diode. The diode’s reverse-directed junction is designed to break down when the voltage applied across it exceeds the breakdown voltage (Vbr) of the diode. When this occurs, a large current (avalanche current) flows through the diode, effectively clamping the voltage on the line to the specified Vc voltage. This effectively protects the device from overvoltage.

The avalanche breakdown voltage of the SMB10J26-E3/5B is designed to be less than the specified Vc voltage, so that the diode can turning on and clamping the voltage before the Vc is reached. The device also has a response time of less than 1ns, allowing it to respond to voltage transients quickly.

The SMB10J26-E3/5B is an ideal choice for use in applications where voltage protection is essential. It offers excellent protection against transient voltages, high ESD immunity, and a fast response time. The diode can be used in a wide range of digital applications, from automotive electronics and data bus systems to telecom equipment and Ethernet ports.

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