SMDJ48CA

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TVS – Diodes

A Transient Voltage Suppression Diode (TVS diode) is an electronic device designed to protect sensitive electronic circuits from high voltage transients or spikes. They were developed to replace older thermally activated breakers and use surge suppression instead. TVS Diodes are designed to limit dangerous voltage transients and protect valuable and sensitive equipment.

SMDJ48CA application field and working principle

SMDJ48CA diodes from Kemet are TVS diodes designed for use in high speed data communications applications. They are bidirectional (unidirectional in the reverse direction) and have an operating voltage rating of 48V with a maximum power dissipation of 500W. The diodes have a maximum breakdown voltage of 48V, a typical leakage current of 10uA and a typical capacitance of 3pF.

The SMDJ48CA diodes are especially suitable for protecting high-speed data lines from electrostatic discharge (ESD) and transients such as lightning. The diodes work by diverting the transient voltage away from the sensitive components before it can damage them. The high speed data lines are typically protected by a pair of TVS diodes connected across the data signal lines, with one diode going to ground and the other going to the power supply.

The SMDJ48CA diodes are ideal for use in high-speed data communication applications such as computers, servers, storage devices, networking equipment, RF equipment, and telecom equipment. They are suitable for applications such as wireless local area networks (WLANs), Ethernet networks, mobile phone systems, modems, and ISDN systems. The SMDJ48CA diodes provide protection against high voltage events such as lightning, electrostatic discharge, and overvoltage transients.

The SMDJ48CA diodes can be used in applications with data rates up to Gigabit Ethernet and provide high-speed response times of less than one nanosecond. The TVS diodes are designed to meet the requirements of UL, the European Union Low Voltage Directive, RoHS Directive, CSA and the IEC standard for surge suppression (IEC 61000-4-5). The TVS diodes are compatible with all data communication standards such as BNC, RJ45, and SCSI.

The SMDJ48CA diodes offer a high level of ESD/transient protection with a wide operating temperature range. They are designed to allow for the quick connection of cables, and are available in both DIP and SMD packages. The parts are RoHS compliant and are available in both through-hole and surface mount designs. The diodes are suitable for use in a wide range of applications and offer a reliable protection solution for high speed data lines.

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