SMAJ43CHE3/5A

Product Overview

Category

The SMAJ43CHE3/5A 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 minimize potential damage.
• Compact Size: Small form factor for easy integration into circuit designs.
• Reliability: Designed for consistent performance under varying conditions.

Package

The SMAJ43CHE3/5A is typically available in a surface mount package, ensuring ease of installation on printed circuit boards (PCBs).

Essence

The essence of this product lies in its ability to safeguard electronic circuits from voltage fluctuations, thereby enhancing the reliability and longevity of electronic devices.

Packaging/Quantity

The SMAJ43CHE3/5A is commonly packaged in reels or trays, with quantities varying based on manufacturer specifications.

Specifications

• Voltage Rating: 43V
• Peak Pulse Power: 400W
• Operating Temperature Range: -55°C to +150°C
• Polarity: Unidirectional
• Mounting Type: Surface Mount
• Package/Case: DO-214AC (SMA)

Detailed Pin Configuration

The SMAJ43CHE3/5A features a standard DO-214AC (SMA) package with two pins. The pin configuration is as follows: 1. Anode 2. Cathode

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to protect downstream components.
• Low Clamping Voltage: Provides efficient protection by limiting the peak voltage across the circuit.
• Fast Response Time: Rapid reaction to voltage transients ensures minimal impact on connected devices.

Advantages and Disadvantages

Advantages

• Effective transient voltage suppression
• Fast response time
• Compact size for space-constrained applications
• Reliable performance under varying conditions

Disadvantages

• Unidirectional protection only
• Limited to specific voltage ratings

Working Principles

The SMAJ43CHE3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the rated threshold, diverting the surge away from sensitive components.

Detailed Application Field Plans

Consumer Electronics

• Protection of sensitive microelectronics in smartphones, tablets, and laptops.
• Safeguarding USB ports and charging circuits from voltage spikes.

Industrial Automation

• Shielding PLCs, sensors, and control systems from electrical disturbances.
• Surge protection for communication interfaces and industrial equipment.

Automotive Electronics

• Protection of automotive control units and infotainment systems from voltage transients.
• Safeguarding onboard diagnostic systems and vehicle communication networks.

Detailed and Complete Alternative Models

• P6KE43CA: Similar transient voltage suppressor diode with a 43V rating.
• 1.5KE43A: Transient voltage suppressor offering comparable protection for 43V circuits.
• SMCJ43A: Surface mount diode providing transient voltage suppression at 43V.

In conclusion, the SMAJ43CHE3/5A serves as a crucial component in protecting electronic circuits from voltage transients, finding applications across various industries and electronic devices. Its compact size, fast response time, and reliable performance make it an essential element in ensuring the longevity and reliability of electronic systems.

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