JANTX1N6139 Circuit Protection

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A transient voltage suppression diode, commonly referred to as TVS diode, provides protection against transient voltage spikes and electromagnetic interference (EMI). JANTX1N6139 is a popular TVS diode device that offers superior protection for a wide array of end applications. It is specifically designed with an array of features to help maximize protection and minimize product damage.

JANTX1N6139 is a simple two terminal device commonly found in applications that must protect against harsh environments such as in cars, computers, and industrial apps.

Application Field

JANTX1N6139 is used for surge protection, EMI/RFI filtering, and protection against high voltage spikes. These diodes are able to protect single-line and multi-line applications from fast transients that are generated by lightning or other ESD events. TVS diodes like JANTX1N6139 are more effective than other surge protection products as it does not require the use of circuit breakers and can be used as a low-cost and reliable solution in many applications.

In automotive applications, TVSs like JANTX1N6139 are typically used to protect automotive electronic circuits from voltage or current spikes. At the same time, they can also provide EMC protection against unwanted EMI signals. In portable electronics, such as smartphones, they can be used to protect against overvoltage transients as well as EMI/RFI filtering.

In industrial applications, JANTX1N6139 can be used to protect both motor and control systems from voltage spikes, surges and EMF interference. It is also commonly used to reduce the harmful effects of voltage spikes and noise interference from external sources such as AC power lines.

Working Principle

TVS diodes such as JANTX1N6139 use the principles of reverse-biased avalanche breakdown physics. This means that the diode has an extremely low voltage threshold and is activated when the voltage across the two terminals exceeds the breakdown voltage, thus triggering current conduction or "avalanche breakdown". As the current increases, the energy stored in the diode will eventually dissipate in the form of heat, thus limiting the peak voltage across the terminals. This is what makes TVS protection devices superior to other forms of surge protection.

When a TVS diode such as JANTX1N6139 is exposed to a surge, the electrons in the P-N junction start to move rapidly and a current (known as the avalanche current) is produced. The current is then dissipated as heat, thus limiting the surge current from reaching the components of the circuit.

Once the surge is gone, the TVS diode will stop conducting and will then need to be reset to begin protection again. This makes the TVS diode a popular choice for surge protection applications.

In addition to the physical properties, JANTX1N6139 also offers a variety of other features that make it especially advantageous for surge protection applications. These include a small body size that is convenient for circuit layout, ultra-fast response time for surge suppression, low dynamic resistance, and superior surge protection capability.

TVS diodes like JANTX1N6139 are a highly reliable, low cost solution for applications needing protection against transient voltage spikes and EMI/RFI interference. They are able to provide superior protection in a variety of end applications due to their small size, fast response time, and low dynamic resistance.

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