SMCJ1.5KE13A-TP Circuit Protection

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Transient voltage suppressor diode, often referred to as TVS diodes, are semiconductor devices specifically designed to protect sensitive electronic equipment from damaging voltages and currents. The SMCV1.5KE13A-TP is a unidirectional semiconductor diode with a peak pulse power rating of 1500 watts at 10/1000 μsec and a stand-off voltage of 13 volts. The purpose of the SMCV1.5KE13A-TP is to protect sensitive devices and circuits from damage due to voltage transients caused by electrostatic discharge (ESD), electrical fast transient (EFT) or lightning.

The SMCV1.5KE13A-TP is a surface mount diode with a glass-passivated die construction that provides reliable operation. The diode is small, approximately 1.2 mm long and 0.7 mm wide, which makes it ideal for compact electronic devices such as smartphones, laptops, and tablets. The device has a high peak power handling capability and low leakage current. It also offers excellent surge current capabilities and withstands multiple transients without degradation.

The SMCV1.5KE13A-TP is able to clamp high voltage transients from fast rising edges such as those caused by lightning. The device is also designed to reject high noise immunity, wherein the peak pulse power is maintained even when the incoming pulse width is reduced. The device’s high ESD immunity is another useful feature, making it ideal for applications where immunity to ESD is a requirement such as in automotive, aerospace, and other military-grade electronics.

The SMCV1.5KE13A-TP can be used in a wide range of applications. It is used for protection of low-impedance points such as mode pin connections, power supplies, digital and analog ICs, USB ports, Ethernet ports, and so on. It is used in systems that may be subject to voltage and current transients, such as those used for communication and data processing.

The working principle of the SMCV1.5KE13A-TP is based on avalanche breakdown. When a current passes through the device, the voltage and current go through a characteristic exponential curve. This exponential curve is known as the avalanche region of operation. When the voltage exceeds the breakdown voltage, the diode operates in avalanche mode, allowing more current through than the specified maximum device rating. This additional transient current is what protects the device from the potentially damaging voltage transients.

In conclusion, the SMCV1.5KE13A-TP is an ideal choice for protection against destructive transients caused by ESD, EFT, or lightning. The device is designed to provide reliable protection and withstand multiple transients without degradation. It is also small in size and suitable for a wide range of applications where immunity to ESD is a requirement.

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