3KASMC20AHE3/9AT

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TVS (Transient Voltage Suppressor) diodes are electrical components used to protect hardware and other sensitive devices from overvoltage conditions and power surges. 3KASMC20AHE3/9AT is a TVS diode that has high surge energy capabilities and ultra-low capacitance. It is designed for applications requiring ESDA and ESD protection from damage caused by electrostatic discharge, as well as protection from lightning-induced overvoltage transients.

Application Field

The 3KASMC20AHE3/9AT is a bi-directional, low-capacitance, and high-surge energy-capable TVS. It is designed for protecting high-speed data lines such as USB ports, video ports, audio ports, controller ports, etc., and has a rated working voltage of 23V.

The 3KASMC20AHE3/9AT can also be used to protect other applications such as laser printers, factory automation equipment, mobile phone components, and Ethernet ports. It is compliant with Air Gap Discharge (AGDS) and Contact Discharge (CD) ESD standards. Additionally, it has an excellent clamping voltage (Vclamp) of 20V and an ultra-low maximum clamping rise time (trr) of 0.25ns.

Working Principle

The 3KASMC20AHE3/9AT is a bi-directional device that works by sensing the incoming voltage across the device and clamping it to within a range that is safe for electronic components. When exposed to an overvoltage condition, the 3KASMC20AHE3/9AT will conduct current away from the protected device, diverting it to ground and effectively limiting the voltage applied to the protected device. When the overvoltage condition subsides, the 3KASMC20AHE3/9AT will return to its non-conductive state.

Additionally, the 3KASMC20AHE3/9AT is designed to reduce ESD surges even further. It will latch onto high surges and clamp them until the surge passes. Afterward, the 3KASMC20AHE3/9AT will normalize the voltage across the device and continue functioning.

The 3KASMC20AHE3/9AT is a very compact TVS, making it ideal for use in applications with limited space. Its high surge resistance and excellent ESD protection make it suitable for protecting electronic components from overvoltage conditions and sudden power surges.

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