2EZ11D2E3/TR12

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A 2EZ11D2E3/TR12 diode is part of the Zener family of diodes, specifically the single Zener diode. Zener diodes are designed to operate in reverse-bias conditions and are used to produce a reference voltage in electronic circuits. The 2EZ11D2E3/TR12 diode belongs in the family of diodes that are specifically used for their breakdown voltage, sometimes denoted as V_Z.

The 2EZ11D2E3/TR12 diode has a maximum operating temperature of 150°C, an average DC current of 2A, a Zener voltage of 11 volts and a power dissipation of 115 mW. Its Zener impedance is 4.8ohms and its capacitance, measured between terminals is 15pF. It has a peak forward surge current of 10A and a maximum reverse operating voltage of 8V. Moreover, the maximum forward voltage drop is 0.20V.

The 2EZ11D2E3/TR12 diode is typically used as a reference voltage source in electrical circuits. It is commonly used to stabilize the output voltage and to limit over-voltage spikes, in areas such as motor controllers, voltage regulators and other control circuits. Due to its low forward voltage drop, it can also be used for ESD protection.

The principle of operation behind the 2EZ11D2E3/TR12 diode is that of rectification. In forward-bias, current is allowed to pass through the diode while in reverse-bias, the excess voltage across the diode\'s terminals causes the diode to become "reverse biased". This results in no current flowing, but instead a voltage potential difference arises across the diode as a result of its associated applied electric field. In the case of the 2EZ11D2E3/TR12 diode, this particular diode will begin to conduct electric current when a reverse voltage applied between its terminals is greater than its Zener breakdown voltage (V_Z(max) = 11V). Consequently, current through the diode will remain approximately constant when the reverse voltage is greater than its Zener breakdown voltage. This is known as the Zener region. Therefore, the 2EZ11D2E3/TR12 diode with its 11V -Zener breakdown voltage can be used to set a reference voltage in a circuit.

In conclusion, the 2EZ11D2E3/TR12 diode is part of the single Zener diode family and is primarily used as a voltage reference source in various electrical circuits. It is suitable for applications where its Zener breakdown voltage of 11V and maximum sustained current of 2A can be exploited. It is also used as an ESD protection device due to its low forward voltage drop. Its rectifying principle of operation explains how it can be exploited as a reference voltage source where it will remain at a constant voltage when the reverse voltage applied between its terminals surpasses its Zener breakdown voltage.

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