MMBZ4686-E3-18 Allicdata Electronics
Allicdata Part #:

MMBZ4686-E3-18-ND

Manufacturer Part#:

MMBZ4686-E3-18

Price: $ 0.02
Product Category:

Discrete Semiconductor Products

Manufacturer: Vishay Semiconductor Diodes Division
Short Description: DIODE ZENER 3.9V 350MW SOT23-3
More Detail: Zener Diode 3.9V 350mW ±5% Surface Mount SOT-23-3
DataSheet: MMBZ4686-E3-18 datasheetMMBZ4686-E3-18 Datasheet/PDF
Quantity: 1000
10000 +: $ 0.02024
Stock 1000Can Ship Immediately
$ 0.02
Specifications
Series: Automotive, AEC-Q101
Packaging: Tape & Reel (TR) 
Part Status: Active
Voltage - Zener (Nom) (Vz): 3.9V
Tolerance: ±5%
Power - Max: 350mW
Current - Reverse Leakage @ Vr: 5µA @ 2V
Operating Temperature: -55°C ~ 150°C
Mounting Type: Surface Mount
Package / Case: TO-236-3, SC-59, SOT-23-3
Supplier Device Package: SOT-23-3
Description

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#### IntroductionThe MMBZ4686-E3-18 is a silicon Zener diode type, with a single device housed in a 1.3 x 0.8 mm SOD-323 package. This type of diode is able to provide a constant voltage when subjected to increased current and can be used in a variety of applications, such as voltage regulation and protection circuits.The MMBZ4686-E3-18 is a surface mount technology device, with its small package size, making it easy to incorporate into a wide range of electronic circuits. This device also exhibits low noise operation, making it suitable for use in sensitive analog applications that require very little background noise.#### ConstructionThe MMBZ4686-E3-18 is constructed from silicon, and has a Schottky Barrier Rectifier (SBR) junction. This junction is formed when electrons from a silicon surface layer meet other electrons from a metal surface layer, creating a current flow known as the Schottky junction.This type of junction is known for being able to operate at lower voltages than a standard PN junction, and is more suited to operations such as rectification, as well as being more efficient at carrying current.#### Application Fields:The MMBZ4686-E3-18 is primarily used in applications that require reliable voltage regulation, making it ideal for use in battery-operated and portable devices, where the operating voltage is likely to vary over time.This type of Zener diode can also be used in logic gates, where a constant voltage is necessary for a stable logic output. It can also be used in power rectification circuits or as a voltage reference in current-limiting circuits.The MMBZ4686-E3-18 can also be used in high-frequency oscillators, as the small package size of the device ensures it has low lead resistance, and contributes to a lower level of capacitance.#### Working PrincipleThe working principle of the MMBZ4686-E3-18 is based on the Zener breakdown phenomenon. When this type of diode is subject to increasing levels of reverse bias voltage, it is eventually driven to a point where both the P-type and N-type semiconductors are excited sufficiently, creating a current ‘blowthrough’ effect known as the Zener breakdown.At this point, the diode is able to provide a constant voltage across its terminals, regardless of the level of the current passing through it. This is ideal for use in devices such as LCD displays and other controlled devices, where a stable voltage reference is required.The MMBZ4686-E3-18 is able to maintain this voltage reference level over a wide operating temperature range of -55 C to +150 C.#### Summary The MMBZ4686-E3-18 is a silicon Zener diode type in a 1.3 x 0.8 mm SOD-323 package, which has low noise operation, making it suitable for use in sensitive analog applications. This type of diode is able to provide a constant voltage when subjected to increased current, making it the ideal choice for applications such as voltage regulation and protection circuits, power rectification circuits, or as a voltage reference in current-limiting circuits.The principle of operation of the MMBZ4686-E3-18 is based on the Zener breakdown phenomenon, where the diode can provide a constant voltage across its terminals when driven to a point where both the P-type and N-type semiconductors are excited sufficiently. This quality enables the MMBZ4686-E3-18 to provide stable outputs over a wide operating temperature range of -55 C to +150 C.

The specific data is subject to PDF, and the above content is for reference

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