SMA6J20A-TR

Introduction

The SMA6J20A-TR is a diode belonging to the category of transient voltage suppressor (TVS) diodes. These diodes are commonly used to protect sensitive electronic components from voltage spikes and transients. The SMA6J20A-TR is designed to provide robust protection against transient overvoltage events, making it an essential component in various electronic circuits.

Basic Information Overview

• Category: Transient Voltage Suppressor (TVS) Diode
• Use: Protection against voltage spikes and transients
• Characteristics: Fast response time, low clamping voltage, high surge current capability
• Package: SMA (DO-214AC)
• Essence: Safeguarding sensitive electronic components
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Voltage - Reverse Standoff (Typ): 17.1V
• Voltage - Breakdown: 18.9V
• Clamping Voltage: 29.2V
• Peak Pulse Current: 47.8A
• Capacitance: 200pF
• Operating Temperature: -55°C to 150°C

Detailed Pin Configuration

The SMA6J20A-TR TVS diode has a simple two-pin configuration with anode and cathode terminals. The anode is typically denoted by a line on the diode body or a "+" symbol, while the cathode is identified by the absence of any marking.

Functional Features

• Transient Suppression: Rapidly clamps transient voltages to safe levels
• Low Clamping Voltage: Provides effective protection for sensitive electronics
• High Surge Current Capability: Withstands large surge currents without degradation

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Compact package size

Disadvantages

• Limited power dissipation capability
• May require additional circuitry for comprehensive overvoltage protection

Working Principles

The SMA6J20A-TR operates based on the principle of avalanche breakdown. When a transient voltage spike occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action effectively limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMA6J20A-TR finds extensive use in various applications, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• P6KE18CA: Similar TVS diode with higher peak pulse current capability
• SMBJ17A: TVS diode with a smaller package size for space-constrained applications
• 5KP17A: Higher power TVS diode suitable for industrial and high-power applications

In conclusion, the SMA6J20A-TR TVS diode offers reliable protection against transient voltage events, making it an indispensable component in modern electronic designs.

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