1N5938BPE3/TR12

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Voltage - Zener (Nom) (Vz):	36V
Tolerance:	±5%
Power - Max:	1.5W
Impedance (Max) (Zzt):	38 Ohms
Current - Reverse Leakage @ Vr:	1µA @ 27.4V
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:	1N5938

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Introduction

The 1N5938BPE3/TR12 is a Zener diode with a single junction. It belongs to the family of small signal diodes consisting of small signal Zener diodes, high-power Zener diodes and some other diodes. They are primarily used as regulators, bypassing, signal clipping and signal switching applications. This diode is designed and manufactured to provide a niche solution for the required specifications. In electronics, the most important attributes of Zener diodes are the breakdown voltage, current, power and noise.

Application Field

1N5938BPE3/TR12 is designed for various applications that require a single junction diode such as bypassing, signal switching, polarity protection, signal clipping and noise reduction. Apart from these common applications, this diode also finds its use in specialised applications such as level shifting, noise reduction in filtering, voltage reference and as a part of voltage regulators.For example, in voltage regulators, this single junction diode is used along with an operational amplifier to achieve the desired regulation of output voltage. It is also used in circuits where performance fast switching is required due to its low on-state resistance and its ability to operate in reverse bias.

Working Principle

The 1N5938BPE3/TR12 diode is based on the principles of reverse breakdown voltage. This diode has a voltage range of 8V to 12V, and can operate as a barrier device when connected in a forward direction. When the applied voltage exceeds the breakdown voltage of the diode, it stops conducting electricity and starts operating in a reverse-biased region. This means that it will allow current to flow negative towards the anode. The allowed current is very low in comparison to the normal current flow.Once the current is reversed, it can hold an applied voltage at a certain level (clamping voltage) as long as the voltage remains below the threshold at which the breakdown voltage occurs. This clamping effect is used to regulate and control the flow of current in circuits.When the diode is being used as a signal switching, the current related to the signal passes through the diode in the form of peak voltages. These peak and valley voltages correspond to the signal dynamics, and the diode helps reduce noise by preventing the passage of certain harmonics and frequencies.

Conclusion

The 1N5938BPE3/TR12 Zener diode is an excellent device that has many uses, such as bypassing, signal switching, signal clipping, polarity protection and noise reduction. Its breakdown voltage and noise performance make it an ideal choice for specialized voltage regulation applications. While this diode is primarily intended to function in reverse-biased conditions, it can also take a forward-biased current, allowing it to act as a barrier device in a variety of applications.

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