1.5KE91A/54

Product Category

The 1.5KE91A/54 belongs to the category of transient voltage suppressor diodes.

Basic Information Overview

• Use: These diodes are used to protect sensitive electronics from voltage transients induced by lightning, inductive load switching, and electrostatic discharge.
• Characteristics: They have a high surge capability, fast response time, and low clamping voltage.
• Package: The diodes are typically available in a DO-201 package.
• Essence: The essence of these diodes lies in their ability to divert excessive current away from sensitive components.
• Packaging/Quantity: They are usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Voltage Rating: 91V
• Power Dissipation: 1500W
• Breakdown Voltage: 101V to 112V
• Operating Temperature: -55°C to 175°C

Detailed Pin Configuration

The 1.5KE91A/54 diode has a standard axial lead configuration with two leads.

Functional Features

• Transient Suppression: Effectively suppresses voltage transients to protect downstream electronics.
• Fast Response Time: Rapidly responds to transient events to minimize potential damage.
• Low Clamping Voltage: Limits the voltage across the protected circuit during transient events.

Advantages and Disadvantages

• Advantages:
  • High surge capability
  • Fast response time
  • Low clamping voltage
• Disadvantages:
  • Can be relatively large in size compared to other protection devices
  • May require additional circuitry for optimal performance in some applications

Working Principles

The 1.5KE91A/54 operates based on the principle of avalanche breakdown, where it diverts excess current away from sensitive components when a voltage transient occurs.

Detailed Application Field Plans

These diodes find extensive use in various applications including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• 1.5KE6.8A/54: Lower voltage rating
• 1.5KE100A/54: Higher voltage rating
• 1.5KE91CA/54: Bi-directional variant

This comprehensive range of alternative models allows for flexibility in selecting the appropriate diode based on specific application requirements.

This content provides a detailed overview of the 1.5KE91A/54 transient voltage suppressor diode, covering its basic information, specifications, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.