1N3318B

Series:	--
Packaging:	Bulk
Part Status:	Active
Voltage - Zener (Nom) (Vz):	19V
Tolerance:	±5%
Power - Max:	50W
Impedance (Max) (Zzt):	2.2 Ohms
Current - Reverse Leakage @ Vr:	10µA @ 13.7V
Voltage - Forward (Vf) (Max) @ If:	1.5V @ 10A
Operating Temperature:	-65°C ~ 175°C
Mounting Type:	Chassis, Stud Mount
Package / Case:	DO-203AB, DO-5, Stud
Supplier Device Package:	DO-5
Base Part Number:	1N3318

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Introduction

The 1N3318B is a single-zener diode used in many electronic applications. It is typically used as a voltage regulator, passing current through itself to ensure that a predetermined voltage is maintained in a circuit. It is also used as a switching or clamping device to limit the peak voltage of a waveform to a predetermined level.

Application Fields

The 1N3318B is primarily used as a voltage regulator, providing a regulated output voltage to a circuit. It is ideal for use with linear voltage regulator circuits, where its output voltage can be adjusted by changing the current passing through the diode.The 1N3318B is also used as a clamping device to protect other components in the circuit from transient voltage spikes. It can be used to limit the peak voltage of a waveform, preventing any voltage above the zener voltage from being applied to other components.Other applications of the 1N3318B include current stabilizing, waveform shaping, voltage sensing, ripple regulation and capacitor charging.

Working Principle

The 1N3318B operates on the principle of the Zener breakdown effect. This effect occurs in highly doped semiconductors when a reverse bias voltage is applied to the junction. As the voltage increases, current begins to flow through the junction, creating an avalanche breakdown.This breakdown voltage, or “Zener voltage” is specified for the 1N3318B and is used to set the output voltage of a regulator or voltage limiter. By controlling the current passed through the diode, the breakdown voltage can be adjusted to the desired value.

Conclusion

The 1N3318B is a single-zener diode used in many electronic applications. It is typically used as a voltage regulator or voltage limiter, providing a precise output voltage to a circuit. It operates on the principle of the Zener breakdown effect, which occurs when reverse bias voltage is applied to the junction, leading to an avalanche breakdown. The breakdown voltage is used to set the output voltage of a regulator or voltage limiter.

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