SMAJ70HE3/5A

Product Overview

Category

The SMAJ70HE3/5A 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 to prevent damage.
• Compact Size: Small form factor for easy integration into circuit designs.
• High Reliability: Designed for consistent performance under varying conditions.

Package

The SMAJ70HE3/5A is typically available 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 product is commonly packaged in reels or trays, with quantities varying based on the supplier and customer requirements.

Specifications

• Voltage Rating: 70V
• Peak Pulse Power Dissipation: 400W
• Breakdown Voltage: 77.4V to 85.5V
• Operating Temperature Range: -55°C to 150°C
• Package Type: DO-214AC (SMA)

Detailed Pin Configuration

The SMAJ70HE3/5A features a standard DO-214AC (SMA) package with two pins. Pin 1 is the cathode, while pin 2 serves as the anode.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to safe levels, protecting downstream components.
• Low Clamping Voltage: Ensures that the protected circuitry is exposed to minimal voltage stress during transient events.
• Fast Response Time: Rapid reaction to voltage spikes, diverting excess energy away from sensitive components.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Compact size for easy integration
• Fast response time for enhanced reliability

Disadvantages

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

Working Principles

The SMAJ70HE3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown threshold, thereby diverting the transient energy away from the protected circuit.

Detailed Application Field Plans

The SMAJ70HE3/5A finds extensive use in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage spikes. - Industrial Control Systems: Ensuring the reliability of control circuitry in industrial environments.

Detailed and Complete Alternative Models

• P6KE68CA: Similar transient voltage suppressor with a 68V breakdown voltage.
• 1.5KE82A: Higher power dissipation capability with an 82V breakdown voltage.
• SMBJ70A: Surface-mount device with a 70V breakdown voltage.

In conclusion, the SMAJ70HE3/5A offers reliable transient voltage suppression in a compact form factor, making it an essential component in safeguarding electronic circuits from voltage transients across various industries.

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