1N4746A

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1N4746A

DIODE ZENER 18 V 1W DO-41G

100% gốc & amp; Mới

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Bảo hành 365 ngày

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Thông số kỹ thuật

Package Tape & Reel (TR)
ProductStatus Active
Voltage-Zener(Nom)(Vz) 18 V
Tolerance ±5%
Power-Max 1 W
Impedance(Max)(Zzt) 20 Ohms
Current-ReverseLeakage@Vr 5 µA @ 13.7 V
Voltage-Forward(Vf)(Max)@If 1 V @ 100 mA
MountingType Through Hole
Package/Case DO-204AL, DO-41, Axial

Tổng quan

Description

The 1N4746A is a Zener diode designed for voltage regulation. It belongs to the 1N474X series of Zener diodes, which are widely used in electronic circuits for providing stable reference voltages. The 1N4746A has a Zener breakdown voltage of 5.1 volts and can handle a power dissipation of up to 1 watt, making it suitable for various applications requiring voltage clamping or regulation.
This diode has a reverse breakdown characteristic, allowing it to maintain a relatively constant voltage across it when reverse-biased, making it ideal for applications such as power supply regulation, signal clipping, and voltage reference. Its construction typically includes a silicon-based material with a glass package, ensuring robustness and reliability.
The 1N4746A is suitable for use in both through-hole and surface-mount applications, making it versatile in circuit design. Key specifications include a maximum reverse current rating and a specified Zener impedance, which are crucial for ensuring performance under load conditions.

Features

The 1N4746A is a 1W Zener diode that provides voltage regulation and is commonly used in various electronic applications. Key features include:
1. Zener Voltage: It has a nominal Zener voltage of 6.2V with a tolerance of ±5%.
2. Power Dissipation: The diode can handle up to 1W of power, making it suitable for voltage clamping and regulation.
3. Dynamic Impedance: It exhibits a dynamic impedance of approximately 25 ohms, ensuring stable performance under varying load conditions.
4. Reverse Leakage Current: At the maximum Zener voltage, the reverse leakage current is typically around 100 µA.
5. Temperature Range: The operating temperature range is from -55°C to +150°C, which allows for versatility in different environments.
6. Package Options: Available in DO-41 package, facilitating easy integration into circuits.
Overall, the 1N4746A is widely used in power supplies, voltage referencing, and protection circuits due to its reliable performance and robustness.

Package

The 1N4746A is typically packaged in a DO-41 (DO-204AA) package type. It features a glass body and is designed for through-hole mounting. This diode is suitable for voltage regulation applications.

Pinout

The 1N4746A is a Zener diode, part of the 1N474X series, designed for voltage regulation. It has a pin count of two, as it is a discrete component with an anode and a cathode. The primary function of the 1N4746A is to provide a stable reference voltage; specifically, it has a Zener voltage of 12 volts.
This diode is commonly used in applications requiring voltage clamping, overvoltage protection, and voltage regulation in power supply circuits. It can handle a power dissipation of up to 1 watt and is characterized by its ability to maintain a relatively constant voltage across its terminals when reverse-biased, effectively preventing excessive voltage from reaching sensitive components in electronic circuits. The 1N4746A is packaged in a DO-41 case, suitable for through-hole mounting.

Manufacturer

The 1N4746A is a Zener diode manufactured by several electronics companies. Prominent manufacturers include ON Semiconductor, Vishay, and Nexperia, among others. These companies are semiconductor manufacturers that produce a wide range of electronic components, including diodes, transistors, and integrated circuits. They cater to various industries such as consumer electronics, automotive, telecommunications, and industrial applications.
The 1N4746A specifically provides a Zener voltage of 5.1V and is commonly used for voltage regulation and reference in electronic circuits. Manufacturers like ON Semiconductor and Vishay are known for their strong emphasis on quality and innovation in semiconductor technology, contributing to advancements in electronic design and power management solutions.

Application

The 1N4746A is a Zener diode used primarily for voltage regulation and protection in electronic circuits. Its application areas include power supplies, voltage clamping, and transient voltage suppression. It is commonly utilized in consumer electronics, automotive applications, and industrial equipment to maintain stable voltage levels and safeguard sensitive components against voltage spikes.

Equivalent

The 1N4746A is a 1-watt Zener diode with a nominal Zener voltage of 5.1V. Equivalent products include:
- 1N5220B (5.1V, 0.5W)
- 1N5221B (5.6V, 0.5W)
- BZX55C5V1 (5.1V, 1W)
- BZX55B5V1 (5.1V, 1W)
Ensure to check specifications like power rating and tolerance for proper application.

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