SMAJ4738A-TP

Product Overview

Category

The SMAJ4738A-TP 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 up to a certain threshold.
• Fast Response Time: Rapid reaction to voltage transients to safeguard connected components.
• Compact Package: Small form factor for easy integration into circuit designs.
• Robustness: Designed to withstand high-energy transient events.

Package

The SMAJ4738A-TP is typically available in a surface-mount package, which facilitates its integration onto printed circuit boards (PCBs).

Essence

The essence of this product lies in its ability to provide reliable protection against transient voltage events, ensuring the longevity and reliability of electronic systems.

Packaging/Quantity

It is commonly supplied in reels or trays, with quantities varying based on manufacturer specifications. Typical packaging includes tape and reel for automated assembly processes.

Specifications

• Part Number: SMAJ4738A-TP
• Breakdown Voltage: 38V
• Peak Pulse Power: 400W
• Operating Temperature Range: -55°C to 150°C
• Mounting Type: Surface Mount
• Package / Case: DO-214AC (SMA)

Detailed Pin Configuration

The SMAJ4738A-TP follows a standard DO-214AC (SMA) package configuration, with two pins for surface mounting onto PCBs.

Functional Features

• Transient Voltage Suppression: Provides rapid clamping of transient voltages to protect downstream components.
• Low Clamping Voltage: Ensures that the protected circuit operates within safe voltage limits during transient events.
• Bidirectional Protection: Offers protection for both positive and negative voltage transients.

Advantages and Disadvantages

Advantages

• Effective transient voltage suppression
• Fast response time
• Compact form factor
• Wide operating temperature range

Disadvantages

• Limited breakdown voltage compared to higher-rated devices
• May require parallel or series connection for higher voltage protection requirements

Working Principles

The SMAJ4738A-TP operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage across it exceeds the breakdown voltage, thereby diverting the transient energy away from sensitive components.

Detailed Application Field Plans

The SMAJ4738A-TP finds application in various electronic systems, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• Alternative Model 1: SMBJ4738A-TP (Breakdown Voltage: 38V, Peak Pulse Power: 600W)
• Alternative Model 2: P4SMAJ4738A-TP (Breakdown Voltage: 38V, Peak Pulse Power: 400W)
• Alternative Model 3: SMCJ4738A-TP (Breakdown Voltage: 38V, Peak Pulse Power: 1500W)

In conclusion, the SMAJ4738A-TP serves as a crucial component in protecting electronic circuits from transient voltage events, offering a balance of performance, size, and reliability.

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