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Diodes - Zener - Single

A 2EZ9.1D2/TR12 is a type of 1 Watt Zener Diode typically used to regulate, stabilize and clamp/limit voltages in electronic devices and circuits. It is a single component, which is a two-legged device having terminals connected to the anode and cathode. 2EZ9.1D2/TR12 diodes can be used in a variety of applications, including voltage regulation, voltage protection, transient voltage suppression, and reverse polarity protection.

Zener Diode Working Principle

The 2EZ9.1D2/TR12 has unique properties compared to the typical PN junction diodes, as it creates a low resistance between the two terminals instead of a high resistance when current flows in the reverse direction.

When the voltage across its terminals exceeds a certain level (the so-called Zener voltage), the current increases sharply and the diode is said to be ‘in breakdown’. This breakdown current, IL, is typically much lower than the current which causes a normal PN junction diode to breakdown, IZSM. Because of this, the 2EZ9.1D2/TR12 is usually used to maintain a specific voltage level in a circuit.

When connected in the reverse direction, the 2EZ9.1D2/TR12 creates a very low resistance path between the anode and the cathode. This is due to the fact that under a certain voltage level, current flows through the diode is almost constant. This helps the device to regulate and stabilize voltages in circuits.

2EZ9.1D2/TR12 Applications

The 2EZ9.1D2/TR12 diode is widely used in a variety of applications, such as:

• Voltage Regulation
• Voltage Protection
• Transient Voltage Suppression
• Reverse Polarity Protection
• Overvoltage Protection
• Voltage Clamping/Limiting
• Battery Charging

The 2EZ9.1D2/TR12 diode is also used in power supplies, television sets, audio amplifiers and other automotive components.

Conclusion

In conclusion, the 2EZ9.1D2/TR12 is a popular and versatile Zener diode device with a wide variety of uses. Its key features, such as low breakdown voltage, reverse breakdown current and voltage regulation, make it an ideal choice for many applications.

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