2EZ19D2E3/TR8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	19V
Tolerance:	±2%
Power - Max:	2W
Impedance (Max) (Zzt):	11 Ohms
Current - Reverse Leakage @ Vr:	500nA @ 14.4V
Voltage - Forward (Vf) (Max) @ If:	1.2V @ 200mA
Operating Temperature:	-65°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	DO-204AL, DO-41, Axial
Supplier Device Package:	DO-204AL (DO-41)
Base Part Number:	2EZ19

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Diodes - Zener - Single: 2EZ19D2E3/TR8 application field and working principle

Zener single diode, such as the 2EZ19D2E3/TR8 series, are used for voltage regulation and stabilizing circuits. It is a two-terminal semiconductor device used to maintain a minimum voltage across it and provide a low resistance path when used in the reverse direction. As such, it is commonly used to stabilize voltage with reference to a much more stable input voltage, which leads to the name “Zener” as coined by Clarence Zener in 1939. In that year, he discovered that when a reverse bias was applied to a silicon p-n junction below a certain voltage, the junction would break down, allowing current to flow in a reverse direction. This break down voltage is called the “Zener voltage”.

2EZ19D2E3/TR8 Characteristics

The 2EZ19D2E3/TR8 series of single diode is a 1.5 watt, hermetically-sealed in a glass enclosure, voltage regulator. It is designed to operate as a Zener impedance regulator in circuits requiring stable and low distortion performance. It is available in different voltages, ranging from three volts to one hundred and thirty-five volts and is capable of sustaining current from two hundred and fifty microamperes to one and five tenths milliamps (1,500 mA).

2EZ19D2E3/TR8 Applications

The 2EZ19D2E3/TR8 series is used in many different applications, some of which are voltage stabilizers, voltage regulators, and clipping circuits. In voltage stabilizers, it is used to adjust the voltage output to more stable levels. Voltage regulators use the series to maintain a more consistent output voltage in order to improve circuit performance and minimize susceptibility to voltage fluctuation. Finally, clipping circuits use the series to modify the waveform output of the circuit, eliminating excess voltages.

2EZ19D2E3/TR8 Working Principle

In a Zener single diode, such as the 2EZ19D2E3/TR8 series, the device is set up to regulate incoming voltages to a certain level. This is done by applying a reverse bias to the diode, a process which creates a specific voltage across the diode. When the input voltage is below the Zener voltage, no current flows and the diode does not respond, thus preserving the incoming voltage. However, if the input voltage passes the Zener voltage, current will flow from cathode to anode, providing a low resistance path, and limiting the output voltage to the Zener voltage. This allows the Zener to stabilize the output voltage even when the input voltage fluctuates.

Conclusion

The 2EZ19D2E3/TR8 series of single diode is used in a variety of applications, most notably as a voltage regulator and stabilizer. It is a low-cost, high-efficiency device which can be used to regulate incoming voltages to more consistent and stable levels. Additionally, it provides a low-resistance path and minimum voltage drop from input to output, making it an ideal choice for many applications requiring voltage regulation and stability.

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