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B72220S0251K551
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B72220S0251K551

Product Overview

Category

The B72220S0251K551 belongs to the category of varistors, which are electronic components used for suppressing voltage surges in electrical circuits.

Use

This varistor is used to protect electronic devices and circuits from transient overvoltage conditions.

Characteristics

  • Voltage Rating: 250V
  • Nominal Discharge Current: 10kA
  • Package Type: Disc
  • Essence: High energy absorption capability
  • Packaging/Quantity: Typically packaged in reels or trays, quantity varies based on manufacturer specifications

Specifications

  • Model: B72220S0251K551
  • Voltage Rating: 250V
  • Maximum Allowable Voltage: 510V
  • Nominal Discharge Current: 10kA
  • Peak Current (8/20µs): 1000A
  • Energy (2ms): 3J
  • Operating Temperature Range: -40°C to +85°C
  • Lead Spacing: 7.5mm
  • Diameter: 22mm
  • Height: 25mm

Detailed Pin Configuration

The B72220S0251K551 varistor has two leads for connection to the circuit. The lead configuration is typically radial, with one lead on each side of the disc-shaped varistor.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltages to protect sensitive electronic components.
  • Fast Response Time: Rapidly responds to voltage surges to limit potential damage to connected equipment.
  • Reliable Performance: Provides consistent protection against voltage transients over its operational lifespan.

Advantages and Disadvantages

Advantages

  • High energy absorption capability
  • Fast response time
  • Compact design

Disadvantages

  • Limited maximum allowable voltage
  • Operating temperature range may not be suitable for extreme environments

Working Principles

The B72220S0251K551 varistor operates based on the principle of nonlinear resistance. When a voltage surge occurs, the varistor's resistance decreases, allowing it to divert excess current away from the protected circuit.

Detailed Application Field Plans

The B72220S0251K551 varistor is commonly used in various applications, including: - Power supply units - Industrial control systems - Telecommunication equipment - Consumer electronics

Detailed and Complete Alternative Models

  • B72220S0251K101: Similar varistor with lower nominal discharge current
  • B72220S0251K102: Similar varistor with higher nominal discharge current
  • B72220S0251K501: Similar varistor with lower voltage rating

In conclusion, the B72220S0251K551 varistor is a reliable component for protecting electronic circuits from transient overvoltage conditions. Its high energy absorption capability, fast response time, and compact design make it suitable for a wide range of applications.

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Enumere 10 preguntas y respuestas comunes relacionadas con la aplicación de B72220S0251K551 en soluciones técnicas

  1. What is the B72220S0251K551 component used for in technical solutions?

    • The B72220S0251K551 is a varistor, commonly used for overvoltage protection in electronic circuits.

  2. What are the key specifications of the B72220S0251K551?

    • The B72220S0251K551 has a voltage rating of 250V and a maximum surge current capability of 4500A.

  3. How does the B72220S0251K551 protect electronic circuits?

    • When an overvoltage condition occurs, the B72220S0251K551 varistor conducts excess current to ground, protecting the circuit from damage.

  4. In what types of applications is the B72220S0251K551 commonly used?

    • The B72220S0251K551 is often used in power supplies, industrial equipment, and consumer electronics for surge suppression.

  5. What is the operating temperature range of the B72220S0251K551?

    • The B72220S0251K551 has an operating temperature range of -40°C to +85°C, making it suitable for a wide range of environments.

  6. Can the B72220S0251K551 be used in automotive applications?

    • Yes, the B72220S0251K551 is suitable for automotive electronics and can provide overvoltage protection in vehicles.

  7. Is the B72220S0251K551 lead-free and RoHS compliant?

    • Yes, the B72220S0251K551 is lead-free and complies with the Restriction of Hazardous Substances (RoHS) directive.

  8. What is the typical response time of the B72220S0251K551 during an overvoltage event?

    • The B72220S0251K551 has a fast response time, typically clamping the voltage within nanoseconds of an overvoltage occurrence.

  9. Are there any derating considerations for the B72220S0251K551 in high-temperature environments?

    • Yes, the B72220S0251K551 may require derating at temperatures above 85°C to ensure optimal performance and reliability.

  10. Where can I find detailed application notes and guidelines for using the B72220S0251K551 in technical solutions?

    • Detailed application notes and guidelines for the B72220S0251K551 can be found on the manufacturer's website or in the product datasheet.