SML4749-E3/5A

Product Overview

The SML4749-E3/5A is a high-performance, low-power Zener diode designed for various electronic applications. This device belongs to the category of semiconductor components and is commonly used for voltage regulation and protection in electronic circuits. Its characteristics include a small package size, precise voltage regulation, and low leakage current. The SML4749-E3/5A is typically available in a surface-mount package and is essential for maintaining stable voltage levels in electronic systems.

Package and Quantity

The SML4749-E3/5A is packaged in a small surface-mount package, making it suitable for compact electronic designs. It is often supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Voltage Range: 12V to 200V
• Power Dissipation: 500mW
• Zener Voltage Tolerance: ±5%
• Operating Temperature Range: -65°C to +175°C
• Forward Voltage: 1.2V
• Reverse Leakage Current: 5µA

Detailed Pin Configuration

The SML4749-E3/5A features a standard Zener diode pin configuration with two terminals. The anode (positive terminal) is typically denoted by a line or dot on the package, while the cathode (negative terminal) is the other terminal.

Functional Features

• Voltage Regulation: The SML4749-E3/5A provides precise voltage regulation, ensuring stability in electronic circuits.
• Overvoltage Protection: It safeguards sensitive components by limiting the voltage across the circuit.
• Low Power Consumption: This Zener diode operates with low power dissipation, making it suitable for energy-efficient designs.

Advantages and Disadvantages

Advantages

• Precise voltage regulation
• Compact surface-mount package
• Low power consumption

Disadvantages

• Limited voltage range compared to some higher-power Zener diodes
• Sensitivity to temperature variations

Working Principles

The SML4749-E3/5A operates based on the Zener effect, where it maintains a constant voltage drop across its terminals when reverse-biased. This allows it to regulate the voltage in a circuit and protect against overvoltage conditions.

Detailed Application Field Plans

The SML4749-E3/5A is widely used in the following applications: - Voltage regulation in power supplies - Overvoltage protection in electronic circuits - Signal clamping and limiting

Detailed and Complete Alternative Models

• SML4748-E3/5A: Lower voltage range (6V to 100V)
• SML4750-E3/5A: Higher voltage range (15V to 250V)
• BZX84C12LT1G: Surface-mount Zener diode with similar characteristics

In conclusion, the SML4749-E3/5A Zener diode offers precise voltage regulation and overvoltage protection in a compact package, making it suitable for a wide range of electronic applications.

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