SMDA24TR

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TVS (transient voltage suppression) diodes are a type of electronic component which are designed to protect other sensitive electronic components from voltage spikes caused by external stimuli such as electrical shock or lightning. The SMDA24TR is a type of TVS diode that is used in various applications and has a working principle that requires understanding before it can be employed successfully.

Features and Characteristics

The SMDA24TR is an unidirectional TVS diode that is recommended for applications with an operating voltage of 24V or less. It has an IEC “RCM” rating of 625Vpek, with a capacity to deliver a power pulse of up to 5kA, a surge current of 8A and a maximum clamping voltage of 28V. The diode also has an excellent thermal response time, with an operating temperature range of from -40 to +125°C, making it suitable for a wide range of applications.

Applications

The SMDA24TR can be used in a variety of applications, such as telecom, industrial control systems, renewable energy systems, electronic equipment, audio and video systems, automotive systems, and all other electronic equipment which require protection from voltage spike. It is also used in the protection of electrical and electronic circuits, from damaging transients.

Working Principle

The SMDA24TR is an unidirectional TVS diode, which operates on the principle of electrostatic clamping. When a surge occurence causes an increase in voltage beyond the diode\'s breakdown voltage, the diode will conduct, “clamping” the voltage and resulting in a corresponding increase in the current passing through the diode. The increased current will result in a large amount of joule heating, which will cause the diode to rise to a higher temperature and eventually reach the melting point, resulting in complete breakdown. Until this point is reached, the surge current will be passed through, preventing the affected circuit from being damaged by the voltage spike.

Conclusion

It is clear that the SMDA24TR is a highly effective TVS diode, which can be used in a variety of applications to protect sensitive electronic components from electrical shock and other damaging voltage spikes. The diode operates on the principle of electrostatic clamping, resulting in a high level of protection for the affected circuit.

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