SMBJ13CATR

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Transient Voltage Suppression (TVS) diodes are commonly deployed electronic components intended to protect device circuitry from any damaging transients generated by external sources caused by faulty power conditioning, electrostatic discharge (ESD), power surges, etc. The SMBJ13CA from Vishay is a 1500W unidirectional tranisent voltage suppression diode intended for the protection of sensitive electronic components from transients. It is typically used in telecommunication systems, automotive electrical systems, computer systems, home appliances, consumer electronics, building automation, solar & battery power systems, industrial systems, and other applications where transient voltage protection is needed.

SMBJ13CATR Application Field

The SMBJ13CA is a popular and widely used TVS diode. It is used as a clipper diode in transient voltage suppression applications. It is often used for protection against both over-voltages (positive or negative) and over-currents. In automotive electronics, this device helps to protect against high-amplitude and high-speed ESD transient induced by the faulty ignition coil – protecting the delicate electronics from damage or malfunction.

The SMBJ13CA is appropriate for a wide range of applications where voltage transients of varying frequency, magnitude and duration can occur. These include automotive applications (for protection of the vehicle\'s electronics from transient over-voltage or over-current spikes generated by the engine, such as those that can result from a faulty ignition coil), consumer electronics (protection from static electricity, including in consumer appliances and gaming consoles, among others), and industrial and computing applications (such as protection of hard drives and data ports from power line surges and transients).

SMBJ13CATR Working Principle

The SMBJ13CA is a clipper diode, meaning that it offers a low forward voltage drop while at the same time having a high surge rating. When the device finds an over-voltage transient, it will quickly clamp the voltage at the level of the device\'s breakdown voltage rating of 13V. This low forward voltage allows for efficient design. The device maintains a low forward voltage even at high surge current levels due to the integrated protection network provided inside the package.

The device has an incredibly fast response time, enabling over-voltage protection within nanoseconds. This fast response time is enabled by the use of a built-in protection network of transistors and diodes which prevents over-voltage transients from reaching the protected devices. The device\'s integrated protective network prevents any potential damage from the over-voltage transient before it can reach the protected device. As a result, the device will instantly limit and suppress the transient, ensuring the protected device is not damaged.

The SMBJ13CA is an extremely reliable TVS diode that is capable of withstanding high amplitudes and high frequency transient surges. It is compatible with automation lines and has a thermal stability that ensures an increased lifetime. The device uses a planar structure that provides superior power dissipation characteristics. This makes the SMBJ13CA able to absorb substantial amounts of power over its lifetime.

Conclusion

The SMBJ13CA is a highly reliable and highly efficient unidirectional transient voltage suppression diode. It is used to protect sensitive electronic components from damaging transients generated by external sources. It is appropriate for a wide range of applications, such as automotive, consumer electronics, and industrial and computing applications, and is capable of withstanding high amplitudes and high frequency transient surges. Thanks to its planar structure, the SMBJ13CA can absorb substantial amounts of power over its lifetime. It is an ideal choice for protecting delicate electronics from transient voltage spikes.

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