1SMA4747 R3G

Product Overview

The 1SMA4747 R3G belongs to the category of semiconductor devices and is specifically classified as a Zener diode. It is commonly used for voltage regulation and transient suppression in various electronic circuits. The characteristics of the 1SMA4747 R3G include its high reliability, low leakage current, and fast response time. This product is typically packaged in a small surface-mount package, making it suitable for compact electronic designs. Each package contains a specific quantity of diodes, usually ranging from hundreds to thousands, depending on the manufacturer.

Specifications

• Voltage Rating: 15V
• Power Dissipation: 1.5W
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +150°C
• Package Type: SMA (DO-214AC)
• Package Quantity: Typically 5000 pieces per reel

Detailed Pin Configuration

The 1SMA4747 R3G Zener diode has two pins, anode, and cathode. The anode is connected to the positive side of the circuit, while the cathode is connected to the negative side.

Functional Features

• Voltage Regulation: The 1SMA4747 R3G provides stable voltage output when operated within its specified parameters.
• Transient Suppression: It effectively suppresses voltage spikes and transients, protecting sensitive electronic components.

Advantages and Disadvantages

Advantages

• High reliability
• Low leakage current
• Fast response time
• Small surface-mount package

Disadvantages

• Limited power dissipation capability
• Voltage tolerance of ±5% may not be suitable for precision applications

Working Principles

The 1SMA4747 R3G operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when reverse-biased. This allows it to regulate voltage and suppress transients by diverting excess current.

Detailed Application Field Plans

The 1SMA4747 R3G is widely used in various electronic circuits and systems, including: - Power supplies - Voltage regulators - Surge protectors - Overvoltage protection circuits - Automotive electronics

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4747 R3G include: - 1N4747A: Similar voltage rating and package type - BZX55C15: Comparable Zener voltage and power dissipation - MMSZ5245B: SMD Zener diode with similar characteristics

In conclusion, the 1SMA4747 R3G Zener diode is a reliable and efficient component for voltage regulation and transient suppression in various electronic applications. Its compact size and fast response time make it suitable for modern electronic designs, although designers should consider its limitations in power dissipation and voltage tolerance for specific applications.

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