SMAJ33A-TR Circuit Protection

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TVS (Transient Voltage Suppression) diodes are crucial components in our current electronics power protection network. They are used in virtually all electronics systems, from smartphone to high-end servers, to protect these systems from voltage perturbations such as electrical transients. The SMAJ33A-TR is one such example of these TVS diodes. In this article, we will discuss the application field and working principle of SMAJ33A-TR.

The SMAJ33A-TR is part of the SMAJ series of bidirectional Transient Voltage Suppressor (TVS) diodes. It provides bi-directional Transient Voltage Suppressor (TVS) protection against over-voltage transients induced by ESD (electrostatic discharge) and other over-voltage events. It features 1500W peak pulse power capability and fast response time, allowing it to be utilized in a wide range of applications. It is also RoHS compliant and is Halogen free.

The SMAJ33A-TR is designed to protect sensitive electronics from transient voltage spikes, which can be caused by a variety of events such as ESD, lightning, and induction. It has a reverse breakdown voltage of 33V, a maximum clamping voltage of 49.5V (8.5V @ 8/20us surge) and a pulse power of 1500W. Its peak pulse current – the maximum peak current the TVS is capable of absorbing before it fails – is 250A.

The SMAJ33A-TR is ideal for use in industrial automation, communications equipment, computer/ peripherals, consumer electronics, automotive, and LED lighting applications. It can also be used in applications where there is a need to protect sensitive electronics from electrical transients.

In terms of working principle, the SMAJ33A-TR is designed to operate like a normal diode when exposed to transient voltages, such as when ESD is applied. When a high voltage transient is applied, the electronic structure around the diode changes. This causes a large amount of current to flow and the diode becomes conductive. The SMAJ33A-TR then limits the current to a safe level, and the transient voltage passes through the TVS diode without causing any damage to the protected device. This process is known as clamping.

The SMAJ33A-TR is designed to be stable even after repeated exposure to transients, making it an excellent choice for applications where over-voltage protection is necessary. Its fast recovery time and high power capability make it suitable for applications where fast response is critical. Additionally, its low capacitance design reduces the capacitive loading on the protected device, allowing it to be used in high-frequency environments.

In summary, the SMAJ33A-TR is a Transient Voltage Suppressor (TVS) diode designed for use in a variety of electronics applications. It provides bi-directional protection from over-voltage transients and has a reverse breakdown voltage of 33V, a maximum clamping voltage of 49.5V (8.5V @ 8/20us surge) and a pulse power of 1500W. Its peak pulse current is 250A, and it features a fast recovery time and low capacitance design. This makes the SMAJ33A-TR an excellent choice for electronics protection in industrial automation, communications equipment, computer/ peripherals, consumer electronics, automotive, and LED lighting applications.

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