SMA5J33HE3/5A

Product Overview

Category

The SMA5J33HE3/5A belongs to the category of semiconductor devices, specifically a type of TVS (Transient Voltage Suppressor) diode.

Use

This product is primarily used for providing protection against transient voltage spikes in electronic circuits, particularly in applications where sensitive components need to be safeguarded from voltage surges.

Characteristics

• Voltage Suppression: Capable of suppressing high voltage transients to protect downstream components.
• Fast Response Time: Rapid response to voltage spikes ensures effective protection.
• Low Clamping Voltage: Provides low clamping voltage to prevent damage to sensitive electronics.
• Compact Package: Small form factor for easy integration into circuit designs.

Package

The SMA5J33HE3/5A is typically available in a surface-mount package, making it suitable for automated assembly processes.

Essence

The essence of this product lies in its ability to efficiently divert and absorb transient voltage spikes, thereby safeguarding sensitive electronic components from potential damage.

Packaging/Quantity

These diodes are commonly packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Peak Pulse Power: 5000 W
• Standoff Voltage: 33 V
• Breakdown Voltage: 36.7 V
• Maximum Clamping Voltage: 53.3 V
• Operating Temperature Range: -55°C to +150°C
• Package Type: SMA (DO-214AC)

Detailed Pin Configuration

The SMA5J33HE3/5A typically features two pins, with the anode and cathode connections clearly labeled for easy integration into circuit layouts.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltage spikes to safe levels.
• Fast Response: Rapid reaction time to voltage transients ensures minimal impact on downstream components.
• Low Leakage Current: Minimizes power loss during normal operation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage surges
• Fast response time
• Compact form factor for space-constrained designs

Disadvantages

• Limited to specific voltage ranges
• May require additional circuitry for comprehensive surge protection

Working Principles

The SMA5J33HE3/5A operates based on the principle of avalanche breakdown, where it rapidly diverts excess voltage away from sensitive components by transitioning into a low-resistance state when subjected to high voltage transients.

Detailed Application Field Plans

Consumer Electronics

• Protection of sensitive integrated circuits in smartphones, tablets, and other portable devices.
• Safeguarding USB ports and HDMI interfaces from voltage spikes.

Industrial Automation

• Shielding PLCs (Programmable Logic Controllers) and industrial control systems from electrical disturbances.
• Protecting communication interfaces in industrial equipment from transient voltage events.

Automotive Electronics

• Safeguarding automotive ECUs (Engine Control Units) and infotainment systems from voltage surges.
• Protection of sensors and actuators in automotive applications.

Detailed and Complete Alternative Models

• SMAJ33CA: Similar TVS diode with a slightly different package type.
• SMBJ33A: Alternative TVS diode with a higher power rating and different form factor.

In conclusion, the SMA5J33HE3/5A TVS diode offers efficient transient voltage suppression, fast response times, and a compact design, making it suitable for a wide range of electronic applications requiring robust surge protection.

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