1.5KE91A-T Product Overview

Introduction

The 1.5KE91A-T belongs to the category of transient voltage suppressor diodes (TVS diodes) and is widely used for surge protection in various electronic circuits. This entry provides a comprehensive overview of the product, including its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

• Category: Transient Voltage Suppressor Diodes (TVS Diodes)
• Use: Surge protection in electronic circuits
• Characteristics: High surge capability, low clamping voltage, fast response time
• Package: Axial leaded, DO-201 package
• Essence: Provides protection against voltage transients and surges
• Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

• Peak Pulse Power: 1500W
• Breakdown Voltage: 91V
• Operating Voltage: 77.4V
• Maximum Clamping Voltage: 124V
• Peak Pulse Current: 10A
• Operating Temperature Range: -55°C to +175°C

Detailed Pin Configuration

The 1.5KE91A-T TVS diode has an axial leaded package with two leads. The anode and cathode terminals are clearly marked for easy identification.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltages to protect downstream components.
• Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuit.
• High Surge Capability: Capable of handling high surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective surge protection for sensitive electronic components
• Fast response time ensures minimal disruption to circuit operation
• High surge capability provides robust protection in harsh environments

Disadvantages

• Higher cost compared to standard diodes
• Requires careful consideration of reverse standoff voltage to avoid overvoltage conditions

Working Principles

The 1.5KE91A-T TVS diode operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds its breakdown voltage. This effectively diverts the surge energy away from the protected circuit.

Detailed Application Field Plans

The 1.5KE91A-T TVS diode finds extensive use in various applications, including: - Power supply units - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• 1.5KE6.8A-T: Lower breakdown voltage, suitable for lower voltage applications
• 1.5KE100A-T: Higher breakdown voltage, suitable for higher voltage applications
• 1.5KE120A-T: Higher breakdown voltage, suitable for industrial and automotive applications

In conclusion, the 1.5KE91A-T TVS diode offers reliable surge protection with its high surge capability, low clamping voltage, and fast response time. While it may have a higher cost and require careful consideration of reverse standoff voltage, its effectiveness in protecting sensitive electronic components makes it a valuable component in various electronic circuits.

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