B72220S1390K501

Product Overview

The B72220S1390K501 belongs to the category of varistors, which are electronic components used to protect circuits from overvoltage conditions. These varistors are commonly used in power supplies, telecommunication equipment, and industrial electronics due to their ability to absorb transient voltage spikes and protect sensitive components. The B72220S1390K501 varistor is known for its high energy absorption capability, compact package, and reliable performance.

Basic Information

• Category: Varistors
• Use: Overvoltage protection in electronic circuits
• Characteristics: High energy absorption, compact size, reliable performance
• Package: Disc type
• Essence: Protection against transient voltage spikes
• Packaging/Quantity: Bulk packaging, quantity varies based on supplier

Specifications

• Part Number: B72220S1390K501
• Maximum Allowable Voltage: 390V
• Nominal Discharge Current (8/20µs): 250A
• Energy Absorption (10/1000µs): 360J
• Operating Temperature Range: -40°C to +85°C
• Dimensions: 14mm diameter

Detailed Pin Configuration

The B72220S1390K501 varistor has a disc-shaped body with two axial leads for connection to the circuit. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Transient Voltage Suppression: The varistor rapidly responds to overvoltage conditions, diverting excess energy away from the protected circuit.
• High Energy Absorption: Capable of dissipating large amounts of energy during transient events, safeguarding sensitive components.
• Compact Design: Space-efficient package suitable for integration into various electronic devices.

Advantages and Disadvantages

Advantages

• Effective protection against transient voltage spikes
• High energy absorption capacity
• Compact form factor for easy integration

Disadvantages

• Limited to specific voltage and current ratings
• May degrade over time with repeated exposure to overvoltage events

Working Principles

The B72220S1390K501 varistor operates based on the principle of non-linear resistance. When subjected to overvoltage conditions, the varistor's resistance decreases sharply, allowing it to conduct excess current and limit the voltage across the protected circuit. This rapid response helps prevent damage to sensitive electronic components.

Detailed Application Field Plans

The B72220S1390K501 varistor finds extensive use in various applications, including: - Power supply units - Surge protection devices - Industrial control systems - Telecommunication equipment - Consumer electronics

Detailed and Complete Alternative Models

• B72220S251K101: Similar varistor with higher voltage rating
• B72220S500K101: Varistor with lower energy absorption but higher nominal discharge current
• B72220S321K101: Alternative model with different dimensions and energy absorption characteristics

In conclusion, the B72220S1390K501 varistor offers reliable overvoltage protection for electronic circuits, making it an essential component in numerous applications across diverse industries.

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