SMAJ45-E3/5A

Product Overview

Category

The SMAJ45-E3/5A 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 transients.

Characteristics

• Package: SMA (DO-214AC)
• Essence: Transient Voltage Suppressor (TVS) Diode
• Packaging/Quantity: Available in tape and reel packaging with varying quantities depending on supplier and order size.

Specifications

• Voltage Rating: 45V
• Peak Pulse Power Dissipation: 400W
• Breakdown Voltage: 50.4V
• Operating Temperature Range: -55°C to +150°C
• Mounting Type: Surface Mount
• RoHS Compliant: Yes

Detailed Pin Configuration

The SMAJ45-E3/5A has two pins, typically denoted as the anode and cathode. The anode is connected to the circuit's positive terminal, while the cathode is connected to the ground or negative terminal.

Functional Features

• Provides effective protection against voltage transients.
• Fast response time to clamp transient voltages.
• Low clamping voltage to prevent damage to sensitive components.

Advantages and Disadvantages

Advantages

• High surge capability.
• Compact surface mount package.
• RoHS compliant.

Disadvantages

• Limited to a specific voltage range.
• May require additional circuitry for comprehensive overvoltage protection.

Working Principles

The SMAJ45-E3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from the protected circuit when a transient event occurs. This prevents the voltage from reaching levels that could damage sensitive components.

Detailed Application Field Plans

The SMAJ45-E3/5A is commonly used in various electronic systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

• P6KE51CA: Similar TVS diode with a higher peak pulse power dissipation of 600W.
• 1.5KE33CA: TVS diode with a lower breakdown voltage of 33V.

In conclusion, the SMAJ45-E3/5A serves as a crucial component in safeguarding electronic circuits from voltage transients, offering reliable protection and peace of mind for designers and engineers across diverse industries.

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