SMBJ20CA-TR

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TVS - Diodes

The SMBJ20CA-TR is an unidirectional Transient Voltage Suppressor (TVS) which safeguards vulnerable circuits from voltage spikes and surges. Essentially a transient voltage suppressor is just an electronic component which limits the voltage spikes that occur in a voltage waveform from esclating to a point which could cause damage to a circuuit. Its unique characteristics make it highly suitable for use in protecting not only a single component, but also large components or sytems.

Applications

The SMBJ20CA-TR can be used anywhere where there is a need to protect vulnerable and sensitive components from voltage spikes and surges. It is especially suitable for use in a wide variety of consumer electronics such as cell phones, digital cameras, and other portable electronic equipment. It can also be used to prevent damage to components in items such as computers, TV sets, and home appliances.

In addition, the SMBJ20CA-TR can be used in industrial applications where voltage spikes and surges can be experienced, namely medical equipment, communication equipment, industrial electronics, and power electronics.

Working Principle

When current or voltage in a circuit exceeds the maximum operating level, the TVS begins to conduct. This is called the break-over voltage and is typically lower than the maximum working voltage of the component. When the break-over voltage is reached, a large current flows through the TVS which causes it to "clamp" the voltage at its maximum operator level. This clamping action prevents spikes of high voltage and protects the sensitive components in the circuit from damage.

Once the current or voltage is reduced back below the break-over voltage, the TVS ceases to conduct and returns to its normal operating mode. This allows the voltage to return to its original level and keeps the device safe from further surges.

The SMBJ20CA-TR is designed to protect sensitive components from high voltage transients of up to 20V and can safely clamp voltages as high as 40V. It also has a low and fast breakdown response time, allowing for it to react quickly to sudden changes in voltage. This makes it an ideal choice for applications where the circuit may be subject to sudden and large changes in voltage.

Conclusion

The SMBJ20CA-TR is a highly effective transient voltage suppressor which is suitable for use in a wide variety of applications. It has an impressive breakdown response time and can safely clamp voltages of up to 40V. It is suitable for use in consumer electronics, industrial electronics, medical equipment, power electronics and communication equipment. As such, it is an invaluable tool in the protection and safeguarding of electronic devices from damage caused by voltage spikes and surges.

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