SMAJ188A-M3/5A

Product Overview

Category

The SMAJ188A-M3/5A 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

• Voltage Suppression: Capable of suppressing voltage spikes and transients to safeguard connected electronic components.
• Compact Size: Designed to be compact for easy integration into various electronic circuits.
• High Reliability: Known for its high reliability and performance under transient conditions.

Package

The SMAJ188A-M3/5A is typically available in a surface mount package, which facilitates easy installation on printed circuit boards (PCBs).

Essence

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

Packaging/Quantity

The SMAJ188A-M3/5A is commonly packaged in reels or tubes, with quantities varying based on the supplier and customer requirements.

Specifications

• Peak Pulse Power: 400W
• Breakdown Voltage: 188V
• Operating Voltage: 162V
• Clamping Voltage: 259V
• Peak Pulse Current: 5A
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ188A-M3/5A features a standard SMC (DO-214AB) package with two pins. The pin configuration is as follows: 1. Pin 1: Anode 2. Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: Effectively suppresses transient voltages to protect downstream electronic components.
• Fast Response Time: Rapid response to voltage transients, minimizing the risk of damage to connected devices.
• Low Clamping Voltage: Provides a low clamping voltage to ensure that the protected circuit remains within safe operating limits.

Advantages and Disadvantages

Advantages

• Reliable protection against voltage transients
• Compact form factor for easy integration
• Fast response time to transient events

Disadvantages

• Limited to specific voltage and current ratings
• May require additional components for comprehensive transient protection in complex circuits

Working Principles

The SMAJ188A-M3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when subjected to a transient voltage, thereby diverting the transient energy away from the protected circuit.

Detailed Application Field Plans

Electronic Circuits

The SMAJ188A-M3/5A finds extensive use in electronic circuits such as power supplies, communication equipment, and industrial control systems, where protection against voltage transients is crucial for reliable operation.

Automotive Electronics

In automotive electronics, this component is employed to safeguard sensitive electronic modules from voltage spikes caused by load dumps, ESD events, and other transient disturbances.

Industrial Automation

Within industrial automation systems, the SMAJ188A-M3/5A is utilized to protect PLCs, motor drives, and sensor interfaces from voltage surges induced by switching operations and external disturbances.

Detailed and Complete Alternative Models

• P6KE200A: Similar transient voltage suppressor with a higher peak pulse power rating.
• 1.5SMC170CA: Surface mount device offering comparable transient voltage suppression capabilities.

In conclusion, the SMAJ188A-M3/5A serves as a critical component in protecting electronic circuits from transient voltage events, offering reliable and efficient voltage suppression. Its compact size and robust performance make it an essential choice for various applications across different industries. While it has specific limitations, its advantages outweigh the disadvantages, making it a preferred solution for transient voltage protection in electronic systems.

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