SMCJ12CA-E3/57T

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Transient voltage suppressors (TVS) are electrical devices which protect electronic circuits from over-voltage conditions. TVS diodes, also known as Transient Voltage Suppressors (TVS), are specifically designed to protect circuits from transients and surges. One of the most common and popular devices used for this purpose is the SMCJ12CA-E3/57T.

The SMCJ12CA-E3/57T is a unidirectional, medium voltage, low capacitance, low leakage TVS diode. It is designed to suppress transients and surges from limited energy discharges. The device provides a high level of transient protection over a wide operating temperature range of -55°C to 125°C. It also has a high surge current rating and a very low dynamic resistance.

The SMCJ12CA-E3/57T is designed for a variety of applications. It is commonly used in power supplies, power over Ethernet (PoE) circuitry, automotive, communication equipment, and consumer appliances. It is also often used in high-speed data lines, such as USB, HDMI, and VGA. In addition, the device is used to protect circuits in DC-DC converters, mobile phones, and other personal electronic devices.

The SMCJ12CA-E3/57T works by shunting high-frequency energy away from the vulnerable components in electronic circuits. The device is designed to clamp voltages above a certain threshold level. As the surge voltage rises, the TVS diode passes increasing amounts of current until it reaches its peak pulse capability. This current diversion helps protect sensitive circuit components from voltage spikes and surges.

The SMCJ12CA-E3/57T has a peak pulse power rating exceeding 8.3kw (8559V). The device can also provide high levels of surge current protection, with a peak pulse current rating of up to 5.95mA. The unit has an average leakage current of only ∼250nA and a very low capacitance of ∼0.5pF @1kHz, enabling it to provide fast transient response times for high-speed data lines. Furthermore, the device features a high peak pulse current capability of 1.5A, which enables it to accommodate a wide range of surge currents.

In summary, the SMCJ12CA-E3/57T is a unidirectional, medium voltage, low capacitance, and low leakage TVS diode. It is designed to provide a high level of transient protection over a wide temperature range. The device is suitable for a variety of applications, such as power supplies, communication equipment, automotive, and consumer appliances. It works by shunting high-frequency energy away from vulnerable components in electronic circuits, and has a peak pulse power rating of 8.3kw (8559V). The unit also features a peak pulse current rating of up to 5.95mA and an average leakage current of only ∼250nA.

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