3EZ4.3D/TR8

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Voltage - Zener (Nom) (Vz):	4.3V
Tolerance:	±20%
Power - Max:	3W
Impedance (Max) (Zzt):	4.5 Ohms
Current - Reverse Leakage @ Vr:	30µA @ 1V
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:	3EZ4.3

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Introduction

The 3EZ4.3D/TR8 is a single Zener diode in TO-92 packaging that has a wide range of applications in a variety of industries. The 3EZ4.3D/TR8 is a versatile and reliable electronic component that can be used in many different electronic circuits.

Application Fields

The 3EZ4.3D/TR8 is most commonly used in power supplies, voltage regulators, and crowbar circuits. In power supplies, it can be used to help regulate the input voltage to ensure consistent and reliable output voltages. In voltage regulators, the 3EZ4.3D/TR8 helps maintain the desired output voltage even in changing or noisy input voltages. In crowbar circuits, the 3EZ4.3D/TR8 is used to create a “short circuit” to protect sensitive components from overpowering or over-voltage situations.The 3EZ4.3D/TR8 is also commonly used in communications devices, such as cellular phones, pagers, and two-way radios. It can be used in the radio frequency (RF) receiver section of the communications device to help detect and convert the radio signal into a usable signal.

Working Principle

The 3EZ4.3D/TR8 is a single Zener diode that provides voltage regulation. The diode works by allowing current to flow when the applied voltage is below a certain threshold, known as the break-over voltage. When the voltage exceeds the threshold, the diode conducts current in the reverse direction, which is known as Zener breakdown. This helps to protect sensitive components from the excessive voltage.

Conclusion

The 3EZ4.3D/TR8 is a versatile and reliable single Zener diode that is used in a wide range of electronic circuits and devices. It is used in power supplies, voltage regulators, and crowbar circuits, as well as in communications devices such as cellular phones and two-way radios. The 3EZ4.3D/TR8 works by allowing current to flow when the applied voltage is below the break-over voltage and then conducting current in the reverse direction when the voltage exceeds the threshold, providing voltage regulation and protection for connected devices.

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