TPD3S014TDBVRQ1 Circuit Protection

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A transient voltage suppressor (TVS) diode, otherwise known as suppressor diode or protection diode is a two-terminal device containing two junctions. It is used to protect any type of sensitive electronic device from high voltage transients, such as those that can be caused by power surges or electrostatic discharge (ESD).

TPD3S014TDBVRQ1 is a two-terminal TVS diode from Texas Instruments that can protect systems from power surges up to 40V. It is a general-purpose ESD protection diode suitable for a wide range of applications, including ESD and EFT protection on mixed-mode ICs and non-critical signal line applications. This device is designed for automotive systems, as it is AEC-Q101 qualified and rated for a temperature range of –40°C to +125°C. It is also offered in a small 4-pin SOD-323F surface mount package.

In general, a TVS diode works by clamping or suppressing potentially damaging transients that exceed a voltage level that is defined by the device and defined in its datasheet. During normal operation, the diode acts as an open circuit in both the forward and reverse bias Directions. The diode has a breakdown voltage that is typically a few volts above the average operating voltage. When the voltage across the diode exceeds the breakdown voltage, it will turn on, thereby effectively limiting the voltage across it.

The breakdown voltage of TPD3S014TDBVRQ1 is typically 14V with a peak pulse power rating of 500W (10/1000μs). This diode is an effectively clamping action that shuts off when the transient voltage is reduced to a safe operating level. It can also withstand ESD in excess of 8KV. It is suitable for use in any non-sensitive circuit protection, such as cell phone circuits.

In conclusion, the TPD3S014TDBVRQ1 from Texas Instruments is a two-terminal TVS diode that is specifically designed for applications that require protection against surges or ESD. Its breakdown voltage is typically 14V and it has a peak pulse power rating of 500W (10/1000μs). This device is AEC-Q101 qualified and rated for a temperature range of –40°C to +125°C, and is available in a 4-pin SOD-323F surface mount package. Furthermore, it can effectively withstand ESD in excess of 8KV.

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