ROV20H511K-S

Product Category

The ROV20H511K-S belongs to the category of passive electronic components, specifically a varistor.

Basic Information Overview

• Use: The ROV20H511K-S is used as a voltage-dependent resistor to protect circuits from excessive transient voltage.
• Characteristics: It has high energy absorption capability, fast response time, and low leakage current.
• Package: The varistor is typically housed in a disc-shaped package with leads for connection.
• Essence: Its essence lies in providing overvoltage protection to sensitive electronic components.
• Packaging/Quantity: The ROV20H511K-S is commonly available in tape and reel packaging with varying quantities per reel.

Specifications

• Voltage Rating: 510V
• Maximum Allowable Voltage: 320V
• Peak Current (8/20µs): 1000A
• Energy (10/1000µs): 20J
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ROV20H511K-S typically has two leads for connection. The pin configuration includes the anode and cathode connections, which are essential for proper installation and functionality.

Functional Features

• Overvoltage Protection: Protects sensitive electronic components from voltage surges.
• Fast Response Time: Quickly clamps excessive voltage to safeguard the circuit.
• Low Leakage Current: Minimizes power loss during normal operation.

Advantages and Disadvantages

• Advantages:
  • Effective overvoltage protection
  • Fast response time
  • Low leakage current
• Disadvantages:
  • Limited lifespan after repeated exposure to overvoltage events
  • Susceptible to damage if subjected to prolonged overvoltage conditions

Working Principles

The varistor works by exhibiting a non-linear resistance characteristic, where its resistance decreases as the applied voltage increases. This allows it to divert excess current away from the protected circuit when an overvoltage event occurs.

Detailed Application Field Plans

The ROV20H511K-S is commonly used in various electronic devices and systems, including: - Power supplies - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• Model 1: ROV10H221K-S
  • Voltage Rating: 220V
  • Maximum Allowable Voltage: 140V
  • Peak Current (8/20µs): 1000A
  • Energy (10/1000µs): 10J
• Model 2: ROV14H431K-S
  • Voltage Rating: 430V
  • Maximum Allowable Voltage: 275V
  • Peak Current (8/20µs): 1000A
  • Energy (10/1000µs): 14J

In conclusion, the ROV20H511K-S varistor provides essential overvoltage protection for a wide range of electronic applications, offering fast response times and low leakage current. However, it is important to consider its limitations and explore alternative models based on specific application requirements.

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