MOV-20D820K

Product Overview

The MOV-20D820K belongs to the category of electronic components and is commonly used for surge protection in electrical circuits. This metal oxide varistor (MOV) is characterized by its high energy absorption capability, compact package, and reliable performance. It is typically packaged in a cylindrical form and is available in various quantities to suit different application needs.

Specifications

• Model: MOV-20D820K
• Maximum Allowable Voltage: 820V
• Nominal Diameter: 20mm
• Peak Current Capability: 10kA
• Operating Temperature Range: -40°C to 85°C
• Packaging: Bulk or Reel

Detailed Pin Configuration

The MOV-20D820K features two axial leads for easy integration into circuit boards. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

• Surge Protection: Effectively absorbs and dissipates transient voltage surges.
• Fast Response Time: Rapidly clamps excessive voltage to protect downstream components.
• Reliable Performance: Ensures long-term stability and durability in surge-prone environments.

Advantages and Disadvantages

Advantages

• High energy absorption capability
• Compact design for space-constrained applications
• Wide operating temperature range

Disadvantages

• Limited peak current capability compared to higher-rated varistors
• Sensitive to prolonged overvoltage conditions

Working Principles

The MOV-20D820K operates based on the non-linear voltage-current characteristics of metal oxide materials. When subjected to overvoltage conditions, the varistor rapidly changes its resistance to divert excess current away from sensitive components, thereby protecting the circuit from damage.

Detailed Application Field Plans

The MOV-20D820K is commonly employed in various electrical and electronic systems, including: - Power distribution units - Surge protectors - Industrial control panels - Telecommunication equipment - Consumer electronics

Detailed and Complete Alternative Models

For applications requiring different voltage ratings or form factors, alternative models to consider include: - MOV-14D431K (14mm diameter, 430V) - MOV-25S431K (25mm square form factor, 430V) - MOV-20D102K (20mm diameter, 1000V)

In conclusion, the MOV-20D820K serves as a reliable surge protection component with its high energy absorption capability and compact design. While it offers effective transient voltage suppression, users should be mindful of its limitations in peak current handling and prolonged overvoltage exposure. Understanding its working principles and considering alternative models can aid in optimizing its use across diverse application fields.

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