1SMA4749 M2G

Product Overview

The 1SMA4749 M2G belongs to the category of surface mount silicon Zener diodes. These diodes are commonly used for voltage regulation and transient suppression in various electronic circuits. The 1SMA4749 M2G is characterized by its high reliability, low leakage current, and fast response time. It 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 specified by the manufacturer.

Specifications

• Voltage Range: 15V to 200V
• Power Dissipation: 1.5W
• Operating Temperature: -65°C to +175°C
• Package Type: SMA (DO-214AC)
• Quantity per Package: Typically 500 or 1000 units

Detailed Pin Configuration

The 1SMA4749 M2G typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit. The pinout configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

The 1SMA4749 M2G provides stable and precise voltage regulation, ensuring that the voltage across the circuit remains within a safe range. It also offers transient suppression, protecting sensitive components from voltage spikes and surges. Additionally, its fast response time makes it suitable for applications requiring rapid voltage regulation.

Advantages and Disadvantages

Advantages: - High reliability - Low leakage current - Fast response time - Compact surface-mount package

Disadvantages: - Limited power dissipation capability - Sensitive to overvoltage conditions

Working Principles

The 1SMA4749 M2G operates based on the principle of Zener breakdown, where it maintains a nearly constant voltage across its terminals when operated in the reverse-biased direction. This allows it to regulate the voltage in a circuit by shunting excess current when the voltage exceeds the specified level.

Detailed Application Field Plans

The 1SMA4749 M2G finds extensive use in various electronic systems, including: - Voltage regulation in power supplies - Transient suppression in communication equipment - Overvoltage protection in automotive electronics - Surge protection in industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the 1SMA4749 M2G include: - 1N4749A: Axial leaded Zener diode with similar voltage specifications - BZX85C15: Through-hole Zener diode with comparable characteristics - P6SMB15CA: Surface-mount transient voltage suppressor with similar voltage clamping capabilities

In conclusion, the 1SMA4749 M2G is a reliable and efficient surface mount Zener diode that offers precise voltage regulation and transient suppression. Its compact package and fast response time make it suitable for a wide range of electronic applications.

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