P4SMA440AHE3_ALL Encyclopedia Entry

Product Overview

Category

The P4SMA440AHE3_ALL belongs to the category of semiconductor devices, specifically a type of TVS (transient voltage suppressor) diode.

Use

This diode is used for protecting sensitive electronic components from voltage spikes and transient surges in various electronic circuits.

Characteristics

• Voltage Suppression: Capable of suppressing voltage spikes and transient surges.
• Fast Response Time: Provides quick response to protect electronic components.
• Low Clamping Voltage: Ensures minimal impact on the protected circuit during surge events.

Package

The P4SMA440AHE3_ALL is typically available in a surface-mount package, making it suitable for automated assembly processes.

Essence

The essence of this product lies in its ability to safeguard electronic circuits from voltage transients, thereby enhancing the reliability and longevity of electronic devices.

Packaging/Quantity

The diode is commonly packaged in reels or tape and reel format, with varying quantities based on customer requirements.

Specifications

• Peak Pulse Power: 400W
• Breakdown Voltage: 484V
• Operating Voltage: 440V
• Clamping Voltage: 710V
• Maximum Surge Current: 22.5A
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The P4SMA440AHE3_ALL typically features a standard SOD-123FL package with two pins for surface mounting onto PCBs.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
• Fast Response: Rapid reaction time to transient events, minimizing the risk of damage to sensitive electronics.
• Low Leakage Current: Ensures minimal power dissipation during normal operation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients.
• Fast response time.
• Low clamping voltage minimizes stress on protected circuits.

Disadvantages

• Limited surge current handling capacity compared to higher-power TVS diodes.
• Higher clamping voltage compared to some specialized TVS diodes for ultra-sensitive applications.

Working Principles

The P4SMA440AHE3_ALL operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from the protected circuit, preventing damage to downstream components.

Detailed Application Field Plans

Electronic Circuits

• Used in power supplies, communication equipment, and industrial control systems to protect against voltage surges.
• Employed in automotive electronics to safeguard sensitive components from electrical disturbances.

Consumer Electronics

• Integrated into consumer electronic devices such as TVs, computers, and home appliances to enhance their resilience to power fluctuations.

Detailed and Complete Alternative Models

• P4SMA Series: Includes various models with different breakdown voltages and power ratings, catering to diverse application requirements.
• Other Manufacturers: Competing products from manufacturers such as Vishay, Littelfuse, and ON Semiconductor offer alternative options with similar functionality.

In conclusion, the P4SMA440AHE3_ALL TVS diode provides effective transient voltage suppression for a wide range of electronic applications, offering reliable protection and enhanced durability for sensitive electronic circuits.

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