1EZ100DE3/TR12

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1EZ100DE3/TR12 Application Field and Working Principle of Zener Diodes

1EZ100DE3/TR12 is a single Zener diode component which is typically used in applications that require enhanced signal control, voltage clippers, voltage stabilizers and current limiting. Zener diodes are two-terminal electronic component usually used as a voltage regulator and can be found in almost every electronic device be it a small signal circuit or power supply design. The operation of a Zener diode is based on a principle of breakdown of reverse biased semiconductor junctions. The current through the diode is blocked in the forward direction and in the reverse direction, the junction voltage reduces due to the avalanche effect.

In a Zener diode, the current is reversed biased and the depletion region or transistor increases relatively to the total length of the junction. The application of the reverse bias causes the valence electrons in the depletion layer to move and eventually break down due to high electric field. As the current increases beyond the zener breakdown voltage, it causes a significant rise in the voltage drop across the junction and the reverse current starts flowing. The 1EZ100DE3/TR12 has a zener breakdown voltage of 17.5V. This voltage is set according to the chip design and the desired functionality. The reverse breakdown voltage is constant over a wide range of current. However, this does not hold true for reverse currents greater than a certain rating. The Zener diode has a relatively limited power dissipation and it cannot service heavy current applications.

In signal control applications, the 1EZ100DE3/TR12 can be used to clip the signal voltage at a specific level. This clamping action is utilised to hold the signal at its level for noise reduction and signal filtering. The clipping level can be adjusted by varying the diode\'s current rating value. The 1EZ100DE3/TR12 can also be used as an active resistor in circuits requiring variable resistance. It can be used to maintain a fixed voltage drop across the diode even when the resistance of the surrounding circuit changes.

The 1EZ100DE3/TR12 can also be found in various power supply designs as a voltage stabilizer. Since Zener diodes have the property of maintaining a constant voltage drop across their junction, they can be used to regulate the output voltage of a power supply with the help of a voltage feedback loop. The voltage across the diode is used to control the output of the power supply and thus maintain a constant voltage level. It can also be used as a current limiting diode as it can restrict the current in a circuit when the current increases beyond a certain predetermined level.

In short, the 1EZ100DE3/TR12 is a versatile Zener diode with a wide range of applications in various electronic circuits. Its usage as a voltage regulator, signal clipper, current limiter, as well as active resistor provide it with a unique advantage over other comparable devices.

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