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TVS - DIODES

A transient voltage suppression (TVS) diode is specially designed and used to protect circuitry from high voltages and surges. TVS diodes are unidirectional, meaning that electrons can only flow in the forward direction. Due to this unidirectional nature, these diodes are commonly known as a "clamp diode".

SMCJ220E3/TR13 Application Field and Working Principle

The SMCJ220E3/TR13 is a bi-directional transient voltage suppression diode. It can be used in applications where there is a high degree of electrical noise, including in automotive, telecommunications, and power supplies. This type of diode has a low capacitance and relatively high peak pulse current rating are suitable for high-speed data lines applications. It is designed to protect computers, telecommunications equipment, and other consumer electronics from voltage transients or lightning.

The working principle of the SMCJ220E3/TR13 is relatively simple. When a transient voltage is applied, the diode rapidly "clamps" or "snubs" the applied voltage. This causes the current to flow normally until the transient is over. Once the transient voltage has been removed, the diode returns to its normal, low leakage state and normal operation resumes. This makes the device especially useful for protecting sensitive electrical components from harm.

In the event of a overvoltage event, the diode inherently becomes conductive and bypasses the current to ground. This occurs quickly and reduces the voltage to the protected circuit. The diode also limits the current, and therefore the potential damage, to the protected components.

The SMCJ220E3/TR13 also provides high surge protection and excellent clamping performance over a wide range of temperatures. It is rated for 6.5A and includes very fast response times and low capacitance so that it does not affect the signal integrity of the protected device. It also offers a high-temperature stability and excellent ESD and EMI protection.

In summary, the SMCJ220E3/TR13 is a versatile bi-directional transient voltage suppression diode suitable for a wide range of applications. It is designed to provide excellent overvoltage protection to the protected device, with fast response times and low capacitance that does not inhibit signal integrity. The device also offers excellent surge protection and excellent clamping performance over a wide range of temperatures.

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