SMBJ12CD-M3/H

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TVS - Diodes are a type of device used to protect sensitive electrical and electronic equipment from damage due to over-voltage transients. The SMBJ12CD-M3/H is an ultra-fast bi-directional transient voltage suppressor device designed to protect two lines from over-voltage transients. This device is widely used in the consumer electronics, automotive, industrial and medical fields due to its high reliability and electrical performance.

The SMBJ12CD-M3/H is a packaging friendly 12-pin surface mount TVS diode that has a low profile and comes in a halogen free package. It offers over-voltage protection from 30 volts to 600 volts and can operate at temperatures of -55 °C to 150 °C. It is also very efficient, with a peak power rating of 2800 watts for 10/1000 μs pulse width and a surge current rating of 200 Amps for an 8/20 μs pulse width.

The device utilizes a proven transient voltage suppressor diode structure which consists of two or more back-to-back diodes connected in series. It also utilizes a Zener diode to provide a clamping action when an over-voltage transient occurs. This clamping action prevents the voltage from rising above the specified levels and thus protecting the equipment from damage.

The device works by sensing the incoming voltage and responding to an over-voltage transient by allowing the current to flow through the Zener diode to provide a clamping voltage. The device will also provide an indication of when the voltage exceeds the rated clamp voltage. This indication is called an ESD, or electrostatic discharge, event which will trigger the diode to switch to a low impedance state to absorb the electrical energy and protect the equipment from damage.

The diode also provides a high insulation resistance value, making it suitable for use in high temperature and high voltage applications. It also features an active circuit architecture which enables it to react quickly and accurately to transient voltage conditions. Additionally, the device is also lead-free and halogen free, which eliminates the need for harmful hazardous materials in its manufacturing process.

In summary, the SMBJ12CD-M3/H is a compact, reliable, and efficient TVS diode that offers over-voltage protection from 30 volts to 600 volts across a wide variety of consumer electronics, automotive, industrial, and medical applications. It achieves this through its combination of a Zener diode structure and active circuit architecture which provides a clamping voltage and quick response to over-voltage transient conditions. In addition, it also offers a high insulation resistance value and is lead-free and halogen free.

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