SA24CA-E3/54 Circuit Protection

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A Transient Voltage Suppressor (TVS) Diode is an electrical device which is used to dissipate stress caused by transient surge peaks or unexpected high currents. TVS diodes are widely used to protect sensitive electronic devices against electrostatic discharge damage (ESD) or other high-energy transients. The SA24CA-E3/54 is a TVS-diode designed to provide protection in applications such as USB ports, HUB boards, and other power electronics systems.

The SA24CA-E3/54 is a dual-channel bi-directional TVS diode with an operating voltage rating between 24 to 54 volts. The typical operating current of the device is 2 mA and the peak pulse power dissipation is rated at 350 W. It also features an excellent ESD protection capability, with a discharge energy rating of 16kV according to IEC-61000-4-2 and 10kV according to JESD22-A1-A. The maximum clamping voltage is typically 180 V and it has a fast response time of 10ns.

The primary function of the SA24CA-E3/54 TVS diode is to provide a protective “clamp” between the power supply and the device being protected. When a fast over-voltage transient surge enters the system, the diode rapidly clamps the voltage to a safe level for the device being protected. The diode is designed to absorb the surge and dissipate it in the form of heat energy, thus protecting the system from damage.

The SA24CA-E3/54 is mainly used in applications such as USB ports, HUB boards, and other power electronics systems. It is also used to protect high-voltage power supplies, DC motors, and DC drives from over-voltage conditions. It can also be used to protect low-voltage signals from over-voltage conditions, such as in ICs, sensors, and control circuits.

The SA24CA-E3/54 TVS diode operates in two phases. During the “non-triggered” phase, the diode remains in its “OFF” state, allowing current to flow uninterrupted. However, once an over-voltage transient enters the system, the diode triggers and is rapidly “flipped” into its “ON” state. In this state, the diode restricts current flow and absorbs the surge, thus protecting the device against damage.

The SA24CA-E3/54 is a robust and reliable device designed for high energy transients. The device is rated for 350 W peak pulse power and is compliant with the IEC-61000-4-2 and JESD22-A1-A standards. Its fast response time and excellent ESD protection capability make it an ideal choice for applications such as USB ports, HUB boards, and other power electronics systems.

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