SMAJ85A: Product Overview and Detailed Information

Introduction

SMAJ85A is a diode belonging to the category of transient voltage suppressors (TVS). It is commonly used to protect sensitive electronic components from voltage spikes and transients. This entry provides an in-depth overview of SMAJ85A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diode
• Use: Protecting electronic circuits from voltage spikes and transients
• Characteristics: Fast response time, low clamping voltage, high surge capability
• Package: SMA (DO-214AC)
• Essence: Safeguarding sensitive electronic components
• Packaging/Quantity: Available in reels or bulk packaging, quantity varies by supplier

Specifications

• Voltage - Reverse Standoff (Typ): 85V
• Voltage - Breakdown (Min): 94.4V
• Voltage - Clamping (Max) @ Ipp: 137V
• Current - Peak Pulse (10/1000µs): 34.4A
• Power - Peak Pulse: 400W
• Type: Unidirectional

Detailed Pin Configuration

The SMAJ85A diode typically has two pins, with the cathode marked by a band or other indicator on the body of the diode.

Functional Features

• Transient Voltage Suppression: Provides protection against voltage spikes and transients.
• Fast Response Time: Reacts quickly to voltage surges, diverting excess current away from sensitive components.
• Low Clamping Voltage: Limits the voltage across the protected circuit during a transient event.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Fast response time
• Low clamping voltage

Disadvantages

• Limited to unidirectional protection
• May require additional components for comprehensive transient protection

Working Principles

SMAJ85A operates by shunting excess current away from sensitive components when a voltage transient occurs. When the voltage exceeds the breakdown voltage, the diode begins to conduct, providing a low-impedance path for the transient current.

Detailed Application Field Plans

SMAJ85A finds applications in various fields, including: - Telecommunications: Protecting communication equipment from lightning-induced surges - Automotive: Safeguarding vehicle electronics from voltage spikes - Industrial Electronics: Shielding control systems from power line transients - Consumer Electronics: Protecting sensitive devices from electrical disturbances

Detailed and Complete Alternative Models

• P6KE85A: Similar TVS diode with comparable specifications
• 1.5KE85A: Higher power TVS diode suitable for industrial applications
• SMBJ85A: Surface mount TVS diode with similar characteristics

In conclusion, SMAJ85A is a crucial component in protecting electronic circuits from voltage transients, offering fast response times and low clamping voltages. Its applications span across various industries, and it has several alternative models with similar functionalities.

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