SMAJ26CA Circuit Protection

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A TVS diode, or transient voltage suppressor diode, is a specialized form of a Zener diode designed to protect valuable electrical components from damage caused by a variety of transient voltage events, such as electrostatic discharge (ESD), lightning, switching surges, and induced lightning. The SMAJ26CA is a popular TVS diode for protecting sensitive electronic equipment, computer ports, control lines, and data lines.

The SMAJ26CA is a glass-passivated junction diode, which is designed to provide reliable protection against damaging voltage transients. Its unidirectional technology, in combination with its low capacitance, makes it an ideal choice for data and signal line protection in non-power applications.

The SMAJ26CA is designed to safely absorb up to 26 Watts of 7/20μs surge power (34 Amps 8/20μs) without performance degradation. It is optimized for protecting I/O ports and flat panel displays from ESD strikes. The peak pulse power capability (PPP) rating indicates the ability of a diode to pass a high voltage surge without causing damage or destruction to the attached circuitry. The peak pulse current rating (IPP) helps determine the maximum surge current the TVS diode can absorb without failing.

The SMAJ26CA has an operating volage of 8 volts with a breakdown voltage of 11 volts. It has low capacitance (0.3 - 0.5 pF) and a low clamping voltage (9.2 volts @ 18A). It also has a low leakage current (1μA @ 8V), a low operating current (100nA) and a fast response time (5ns typical).

The SMAJ26CA is used in a wide variety of applications, such as communications systems, consumer electronics, office equipment, computers, and automotive electronics. It can also be used for protecting LED displays, GPS units, and RF equipment from voltage transients.

In summary, the SMAJ26CA is an ideal TVS diode for protecting sensitive electronic equipment from a variety of transient voltage events. Its low capacitance and low clamping voltage make it a good choice for protecting I/O ports and flat panel displays, as well as other applications. Thanks to its low leakage current and high peak pulse power ratings, it provides reliable protection without compromise.

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