SMAJ4743CE3/TR13

Product Overview

Category

The SMAJ4743CE3/TR13 belongs to the category of semiconductor devices, specifically a type of transient voltage suppressor (TVS) diode.

Use

It is commonly used for protecting sensitive electronic components from voltage spikes and transient overvoltage conditions.

Characteristics

• Voltage Suppression: Capable of suppressing transient voltages to protect downstream components.
• Fast Response Time: Provides rapid response to transient voltage events.
• Low Leakage Current: Minimizes power consumption during normal operation.
• Compact Size: Small form factor for easy integration into circuit designs.

Package

The SMAJ4743CE3/TR13 is typically available in a surface mount package, making it suitable for automated assembly processes.

Packaging/Quantity

It is often supplied in reels or tape and reel packaging, with quantities varying based on manufacturer specifications.

Specifications

• Part Number: SMAJ4743CE3/TR13
• Breakdown Voltage: 43.2V
• Peak Pulse Power: 400W
• Operating Temperature Range: -55°C to 150°C
• Package Type: DO-214AC (SMA)

Detailed Pin Configuration

The SMAJ4743CE3/TR13 follows the standard pin configuration for a DO-214AC package, with two leads for surface mount soldering.

Functional Features

• Transient Voltage Suppression: Clamps transient voltages to a safe level, protecting downstream components.
• Bidirectional Protection: Offers protection for both positive and negative voltage transients.
• Low Clamping Voltage: Ensures that the protected circuitry is not subjected to excessive voltage levels.

Advantages and Disadvantages

Advantages

• Effective protection against transient voltage events.
• Fast response time to minimize potential damage.
• Compact size for space-constrained applications.

Disadvantages

• Limited to specific voltage ranges, may not be suitable for all applications.
• Requires careful consideration of placement within the circuit to ensure optimal protection.

Working Principles

The SMAJ4743CE3/TR13 operates by diverting excess transient voltage away from sensitive components, thereby preventing damage due to overvoltage conditions. When a transient voltage event occurs, the TVS diode rapidly conducts, shunting the excess energy to ground and limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMAJ4743CE3/TR13 is commonly used in various electronic systems, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage transients. - Industrial Control Systems: Providing surge protection for control and monitoring circuits.

Detailed and Complete Alternative Models

• P6KE43CA: Similar TVS diode with a different package and form factor.
• 1.5KE43CA: Higher power handling capability while offering similar voltage suppression characteristics.

In conclusion, the SMAJ4743CE3/TR13 is a vital component in safeguarding electronic systems from transient voltage events, offering effective protection and fast response times. Its compact size and bidirectional protection make it suitable for a wide range of applications, from consumer electronics to industrial systems.

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