SMAJ12HE3/5A

Product Overview

Category

The SMAJ12HE3/5A belongs to the category of electronic components, specifically within the realm of semiconductor devices.

Use

This product is primarily used for transient voltage suppression in electronic circuits to protect sensitive components from voltage spikes and surges.

Characteristics

• Voltage Suppression: Capable of suppressing transient voltages to protect downstream components.
• Fast Response Time: Rapid response to voltage transients for effective protection.
• Compact Size: Small form factor for easy integration into circuit designs.
• High Reliability: Designed for consistent performance and durability.

Package

The SMAJ12HE3/5A typically comes in a surface-mount package, which facilitates easy installation onto printed circuit boards (PCBs).

Essence

The essence of this product lies in its ability to safeguard electronic circuits from voltage fluctuations, ensuring the reliability and longevity of the connected devices.

Packaging/Quantity

The SMAJ12HE3/5A is commonly available in reels or tubes, with quantities varying based on the supplier and customer requirements.

Specifications

• Voltage Rating: 12V
• Peak Pulse Power: 400W
• Operating Temperature Range: -55°C to +150°C
• Breakdown Voltage: 13.3V
• Clamping Voltage: 19.9V
• Package Type: SMA

Detailed Pin Configuration

The SMAJ12HE3/5A features a standard SMA package with two pins for surface-mount soldering onto PCBs.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to safe levels, protecting downstream components.
• Fast Response: Rapid reaction to voltage spikes ensures minimal impact on the connected circuitry.
• Low Leakage Current: Maintains low leakage current during normal operation for energy efficiency.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact size for space-constrained designs

Disadvantages

• Limited to specific voltage ratings
• May require additional components for comprehensive surge protection

Working Principles

The SMAJ12HE3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the specified level, diverting the surge away from sensitive components.

Detailed Application Field Plans

Electronic Circuits

• Used in power supplies, communication equipment, and consumer electronics to safeguard against voltage surges.

Automotive Electronics

• Integrated into automotive control units and infotainment systems to protect against electrical disturbances.

Industrial Automation

• Employed in industrial control systems and machinery to ensure reliable operation in challenging electrical environments.

Detailed and Complete Alternative Models

• P6KE12CA: Similar transient voltage suppressor with a different package type.
• 1.5SMC12CA: Alternative model with higher peak pulse power handling capability.

In conclusion, the SMAJ12HE3/5A serves as a crucial component in protecting electronic circuits from voltage transients, offering fast response and compact design. Its application spans across various industries, ensuring the integrity of sensitive electronics. While it has specific limitations, alternative models provide flexibility in addressing diverse requirements.

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