1N4742A

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1N4742A

DIODE ZENER 12V 1W DO204AL

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Spezifikationen

Part Status Active
Voltage - Zener (Nom) (Vz) 12 V
Tolerance ±5%
Power - Max 1 W
Impedance (Max) (Zzt) 9 Ohms
Current - Reverse Leakage @ Vr 5 µA @ 9.1 V
Operating Temperature -65°C ~ 175°C
Mounting Type Through Hole
Package DO-204AL, DO-41, Axial
Supplier Device Package DO-204AL (DO-41)
Packaging Bulk
Voltage - Forward (Vf) (Max) @ If 1.2 V @ 200 mA

Übersicht

Description

The 1N4742A is a Zener diode designed to provide voltage regulation in electronic circuits. It has a Zener voltage rating of 12 volts and is part of the 1N4741A to 1N4749A series, which covers a range of Zener voltages from 1.5V to 75V. This diode typically has a power dissipation capability of 1 watt and comes in a DO-41 package, making it suitable for use in through-hole applications.
Zener diodes like the 1N4742A are commonly used in voltage reference applications, clamping circuits, and protection circuits to prevent voltage spikes. Its characteristics include a low temperature coefficient, a high breakdown voltage, and good stability over a range of temperatures. The 1N4742A is popular in both consumer and industrial applications due to its reliability and effectiveness in voltage regulation.

Features

The 1N4742A is a Zener diode that provides voltage regulation in electronic circuits. Key features include:
1. Zener Voltage: It has a nominal Zener voltage of 12V, providing stable voltage regulation.
2. Power Rating: The diode can handle a power dissipation of up to 1W, making it suitable for various applications.
3. Temperature Coefficient: It has a temperature coefficient of approximately 5 mV/°C, ensuring stable performance across temperature variations.
4. Reverse Current: The maximum reverse current is specified, ensuring reliable operation within its limits.
5. Package Type: Typically available in DO-41 package, offering easy integration into circuits.
6. Applications: Commonly used in voltage regulation, over-voltage protection, and reference voltage applications.
Overall, the 1N4742A is a reliable choice for providing stable voltage in power supplies and other electronic components.

Package

The 1N4742A is packaged in a DO-41 (DO-204AA) glass axial package. It features two lead terminals and is designed for through-hole mounting in electronic circuits.

Pinout

The 1N4742A is a Zener diode, specifically designed for voltage regulation applications. It has a pin count of 2, as it is a two-terminal device.
The primary function of the 1N4742A is to provide a stable reference voltage of 12 volts (VZ) when reverse-biased. It can handle power dissipation of up to 1 watt (PD) and is commonly used in voltage regulation circuits, protection against voltage spikes, and clamping applications. The diode can operate within a reverse voltage range, making it suitable for various electronic applications.
In summary, the 1N4742A is a two-terminal Zener diode, providing a regulated 12V output for voltage stabilization and protection.

Manufacturer

The 1N4742A is a Zener diode manufactured by various semiconductor companies, including ON Semiconductor, Vishay, and STMicroelectronics. These companies are prominent players in the electronics industry, specializing in the design and production of semiconductor devices and components. They cater to a wide range of sectors, including consumer electronics, automotive, telecommunications, and industrial applications.
Zener diodes like the 1N4742A are primarily used for voltage regulation and protection in electronic circuits, making them essential components in power supply systems and various electronic applications. The manufacturing companies focus on innovation and quality to meet the demands of modern electronics, ensuring reliability and performance in their products.

Application

The 1N4742A is a 1N series Zener diode primarily used for voltage regulation, providing a stable output voltage of 12V. Its application areas include power supply circuits, voltage reference circuits, overvoltage protection, and clamping circuits in electronic devices. It is commonly utilized in consumer electronics, automotive systems, and industrial equipment for maintaining consistent voltage levels and safeguarding sensitive components.

Equivalent

The 1N4742A is a Zener diode with a breakdown voltage of 12V and a power rating of 1W. Equivalent products include the 1N5220B (12V, 1W, different package), BZX55C12 (12V, 1W), and the 1N4728A (12V, 1W, but with different tolerance). Always check specifications for exact voltage, power rating, and package type to ensure compatibility.

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