1N5303

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1N5303

+BOM

SILICON CURRENT LIMITING DIODE

  • ManufacturerSolid State Inc.

  • Mfr. Part #1N5303

  • Package DO-204AH

  • In Stock8183

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Specifications

Attribute Value
Supplier Solid State Inc.
Package Bulk
ProductStatus Active
OperatingTemperature -55°C ~ 200°C
MountingType Through Hole
Package/Case DO-204AH, DO-35, Axial

Overview

Description

The 1N5303 is a current-regulating diode, also known as a constant current diode or current limiter diode. It is designed to maintain a constant current over a wide range of voltages, making it useful in applications where precise current control is needed. The device is typically used in LED driving, battery charging, and biasing circuits.
Key features of the 1N5303 include its ability to regulate current at approximately 3.0 mA, regardless of voltage fluctuations. It operates efficiently over a voltage range from about 5V to 100V, ensuring consistent performance and protection for connected components. The diode’s simple two-terminal configuration facilitates easy integration into various electronic designs.
Manufactured in a DO-35 package, the 1N5303 is suitable for through-hole mounting, offering reliability and ease of use in prototyping and application development. Its robust construction ensures durability and enhances the longevity of the circuits it is incorporated into. Overall, the 1N5303 is valued for its simplicity, reliability, and effectiveness in maintaining constant current flow in electronic circuits.

Equivalent

The 1N5303 is a current-regulating diode. Equivalent products include:
- J500 (Vishay)
- CRD500 (Central Semiconductor)
- E-500 (Microsemi)
These components provide similar current regulation capabilities and can serve as substitutes in circuits requiring the unique characteristics of the 1N5303. Always verify specifications and compatibility with your specific application.

Features

The 1N5303 is a current-regulating diode, also known as a constant current diode or current-limiting diode. Here are its key features:
1. Current Regulation: It provides a constant current of approximately 3 mA over a wide range of voltages.
2. Voltage Range: Operates efficiently from 5V to 90V, ensuring stable current across this range.
3. Simplicity: Offers a simple two-terminal device, making it easy to integrate into circuits without the need for additional components to regulate current.
4. Package Type: Typically available in a DO-35 package, allowing for easy handling and installation in various applications.
5. Temperature Stability: Designed to maintain performance over a broad temperature range, ensuring reliability in different environments.
6. Applications: Commonly used in LED driving, battery charging circuits, and other applications where a stable current is required.
Overall, the 1N5303 provides a reliable and efficient solution for maintaining a constant current in electronic circuits.

Pinout

The 1N5303 is a current-regulating diode, often referred to as a current-limiting diode or a constant current diode. It typically comes in a DO-35 package, which is similar to a small glass diode package.
Pin Count:
The 1N5303 has two pins.
Function:
The primary function of the 1N5303 is to maintain a constant current over a wide range of voltage. It is designed to regulate a current of approximately 3.0 mA. This makes it useful in applications where a stable current source is needed regardless of voltage fluctuations, such as in LED driving, sensor circuits, or battery charging.
By providing a consistent current, the 1N5303 helps ensure that components in a circuit operate safely and within their specified parameters, enhancing reliability and performance.

Manufacturer

The 1N5303 is manufactured by ON Semiconductor, which is now known as onsemi. onsemi is a provider of semiconductor solutions, focusing on intelligent power and sensing technologies used in various applications such as automotive, industrial, cloud infrastructure, and IoT. The company is known for its extensive portfolio of products, including discrete and integrated semiconductor components. It is a key player in the semiconductor industry, emphasizing energy-efficient solutions and innovation.

Application

The 1N5303 is a current-regulating diode, also known as a current-limiting or current-source diode. Its primary application is to maintain a constant current over a wide range of voltages. Key application areas include LED driver circuits, where it ensures consistent LED brightness, and battery charging systems, where it can provide a stable current to charge batteries safely. It is also used in sensor circuits, providing a steady current to sensors for accurate readings. Additionally, the 1N5303 is employed in biasing circuits for amplifiers and transistors, ensuring reliable operation by maintaining a constant current flow.

Package

The 1N5303 is a current regulator diode typically available in a DO-35 package. This package type is a small, axial-lead glass package commonly used for diodes, suitable for through-hole mounting on printed circuit boards.

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