SMCJ160HE3/9AT

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TVS - Diodes are an important tool for providing surge protection in electronics and technology applications. The SMCJ160HE3/9AT is a popular example of this technology that offers reliable protection from transient overvoltage events.

This device is an Uni-directional Breakdown Voltage Transient Voltage Suppressor. It is a bidirectional transient voltage suppressor (TVS) diode that can protect against voltage rises caused by transients. The device has an electrostatic discharge (ESD) rating of greater than 15kV (HBM) for protection against ESD events.

The SMCJ160HE3/9AT is constructed from a monolithic structure using metal-oxide-silicon (MOS) technology. The two terminals of the device are laid out on the same plane to ensure uniform component placement within the PCB and minimize stress on the components and PCB. The device has a reversed standoff voltage of 16V and a forward standoff voltage of 9V.

When the device is exposed to a transient voltage that exceeds the designed breakdown voltage, the voltage polarity does not matter. The TVS diode acts to reduce the voltage level to a safe value. When the transient pulse dissipates, the device is restored to its pre-event polarity.

The SMCJ160HE3/9AT is typically installed as a “back-to-back” diode configuration using two of the components. This allows for protection against transient voltage from both directions. This dual diode setup is common in applications where the supply can be driven with a positive or negative voltage, such as DC-DC converters.

The device is popular for PCB-level surge protection in LCD TVs and other electronics applications. It is also used in automotive, lighting, aerospace, and military applications. The device is small in size and comes in a TO-263AB package. This small form factor makes it suited for use in space-constrained applications. The ESD rating ensures reliable protection against high voltage transients in all conditions.

In summary, the SMCJ160HE3/9AT is a small, reliable metal-oxide silicon transient voltage suppressor diode. It is suitable for applications that require both bidirectional and ESD protection, such as LCD TVs and other consumer electronics. The dual diode configuration allows for protection from both positive and negative voltages, while the small package makes it an ideal choice for space-constrained applications.

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