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BZX84C18

Name: BZX84C18
Rating: 4.7 (12 reviews)

DIODE ZENER 18V 200MW SOT-23

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製造商。部分 #BZX84C18
包 SOT23
資料表 BZX84C18 DataSheet
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規格

Package	Tape & Reel (TR)
ProductStatus	Active
Voltage-Zener(Nom)(Vz)	18 V
Tolerance	±5%
Power-Max	350 mW
Impedance(Max)(Zzt)	45 Ohms
Current-ReverseLeakage@Vr	100 nA @ 12.6 V
Voltage-Forward(Vf)(Max)@If	900 mV @ 10 mA
MountingType	Surface Mount
Package/Case	TO-236-3, SC-59, SOT-23-3

概述

Description

The BZX84C18 is a Zener diode designed for voltage regulation in electronic circuits. It features a nominal reverse breakdown voltage of 18 volts, making it ideal for applications requiring stable voltage references. The diode has a maximum power dissipation of 500 mW, and its temperature coefficient is approximately 0.1% per degree Celsius, ensuring reliable performance across varying temperatures.
Common applications include voltage clamping, signal conditioning, and protecting sensitive components from voltage spikes. The BZX84C18 is often used in power supply circuits, voltage regulation, and as a protective device in transient voltage suppression.
It is housed in a standard DO-41 package, making it easy to integrate into various designs. Key specifications include a low dynamic impedance, which enhances its performance in regulation tasks, and a robust construction that allows for longevity. Overall, the BZX84C18 is a versatile and reliable component for managing voltage in electronic systems.

Features

The BZX84C18 is a Zener diode that offers voltage regulation and protection in electronic circuits. Key features include:
1. Zener Voltage: It has a nominal Zener voltage of 18V, ensuring stable voltage regulation.
2. Power Dissipation: The diode can handle a maximum power dissipation of 1W, making it suitable for various applications.
3. Low Reverse Leakage Current: It exhibits low reverse current at rated Zener voltage, enhancing reliability.
4. Temperature Stability: The device offers good temperature characteristics, maintaining performance across a range of temperatures.
5. Package Options: Available in various package types, including DO-41, facilitating ease of integration into different designs.
6. Fast Response: Provides a quick response to voltage variations, ensuring effective voltage clamping.
7. Applications: Commonly used in voltage regulation, surge suppression, and signal clamping circuits.
These features make the BZX84C18 a versatile choice for electronic design requiring reliable voltage regulation.

Package

The BZX84C18 is typically packaged in a DO-41 (axial package) configuration, which is a glass diode package designed for through-hole mounting.

Pinout

The BZX84C18 is a Zener diode with a pin count of 2. Its primary function is voltage regulation by providing a stable reference voltage of 18V, which is useful in various applications including voltage clamping and reverse polarity protection. The two pins are typically configured as follows:
1. Anode (A): The negative side where the current flows into the diode.
2. Cathode (K): The positive side where the regulated voltage is output.
The BZX84 series, including the BZX84C18, is designed for low power applications and features low dynamic impedance, making it suitable for providing reliable voltage regulation in circuits.

Manufacturer

The BZX84C18 is a Zener diode manufactured by several semiconductor companies, with one of the most notable manufacturers being Nexperia. Nexperia is a global semiconductor company specializing in discrete, logic, and MOSFET components. They focus on high-performance semiconductor solutions for various applications, including automotive, industrial, and consumer electronics.
Other manufacturers of the BZX84C18 may include ON Semiconductor, Vishay, and STMicroelectronics, as it is a common part used in electronic circuits for voltage regulation and reference. These companies operate in the electronics industry, producing components that are essential for modern electronic devices and systems.

Application

The BZX84C18 is a voltage regulator diode commonly used in various applications, including voltage reference, surge protection, and clamping. It provides stable reference voltage for circuits, protects sensitive components from voltage spikes, and is used in power supply regulation. Additionally, it is employed in biasing and circuit protection for low-voltage applications in consumer electronics, automotive, and industrial systems.

Equivalent

The BZX84C18 is a 18V Zener diode. Equivalent products include:
1. 1N751A (Zener diode, 18V)
2. BZX55C18 (standard Zener diode, 18V)
3. 1N5221B (Zener diode, 18V)
Always verify specifications such as power rating and tolerance when selecting equivalents.