1SMA4761HR3G

Product Overview

Category

The 1SMA4761HR3G belongs to the category of semiconductor devices, specifically a Zener diode.

Use

It is commonly used for voltage regulation and transient voltage suppression in electronic circuits.

Characteristics

• Voltage Regulation: Provides stable voltage output.
• Transient Voltage Suppression: Protects sensitive components from voltage spikes.
• High Power Dissipation: Capable of handling high power levels.
• Low Leakage Current: Minimizes power loss in standby mode.

Package

The 1SMA4761HR3G is typically available in a SMA package, which is a surface mount package designed for easy installation on printed circuit boards.

Essence

The essence of the 1SMA4761HR3G lies in its ability to regulate voltage and protect electronic components from voltage surges, ensuring the reliability and longevity of electronic systems.

Packaging/Quantity

It is commonly supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Voltage: 12V
• Power Dissipation: 1.5W
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The 1SMA4761HR3G typically has two pins, with the anode and cathode connections clearly labeled for easy integration into circuit designs.

Functional Features

• Voltage Regulation: Maintains a constant voltage across the device.
• Transient Voltage Suppression: Quickly clamps voltage spikes to protect downstream components.
• Fast Response Time: Rapidly responds to changes in input voltage.
• Low Reverse Leakage: Minimizes power loss in reverse bias conditions.

Advantages and Disadvantages

Advantages

• Reliable voltage regulation
• Effective transient voltage suppression
• High power dissipation capability
• Wide operating temperature range

Disadvantages

• Limited voltage options available
• Sensitive to excessive current and voltage levels

Working Principles

The 1SMA4761HR3G operates based on the Zener effect, where it maintains a nearly constant voltage across its terminals when operated in the reverse breakdown region.

Detailed Application Field Plans

The 1SMA4761HR3G finds extensive use in various electronic systems, including: - Power supplies - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• 1N4742A: 12V Zener diode with similar characteristics
• BZX85C12: 12V Zener diode with higher power dissipation capability
• P6KE12CA: 12V transient voltage suppressor diode with similar voltage clamping characteristics

In conclusion, the 1SMA4761HR3G Zener diode serves as a crucial component in electronic circuits, providing reliable voltage regulation and transient voltage suppression. Its robust characteristics make it suitable for a wide range of applications, despite some limitations in voltage options and sensitivity to excessive current and voltage levels. Understanding its specifications, pin configuration, functional features, and alternative models is essential for effective integration into electronic designs.

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