Littelfuse Inc.
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V68ZA20
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V68ZA20

Product Overview

Category

V68ZA20 belongs to the category of varistors, which are electronic components used for suppressing voltage surges.

Use

The V68ZA20 varistor is commonly used in electronic circuits to protect sensitive components from transient overvoltage conditions.

Characteristics

  • Voltage Rating: 68V
  • Peak Current: 100A
  • Energy Absorption: 360J
  • Response Time: <25ns
  • Operating Temperature: -40°C to +85°C

Package

The V68ZA20 varistor is typically available in a disc package with leads for through-hole mounting.

Essence

The essence of the V68ZA20 varistor lies in its ability to rapidly and effectively limit excessive voltage spikes in electronic circuits.

Packaging/Quantity

The V68ZA20 varistor is commonly packaged in reels or trays and is available in various quantities to suit different production needs.

Specifications

  • Voltage Rating: 68V
  • Maximum Allowable Voltage: 85V
  • Clamping Voltage: 135V
  • Peak Current: 100A
  • Energy Absorption: 360J
  • Operating Temperature Range: -40°C to +85°C
  • Lead Material: Tin-plated copper

Detailed Pin Configuration

The V68ZA20 varistor has two leads for through-hole mounting. The lead configuration is as follows: 1. Lead 1: Connected to one end of the varistor element 2. Lead 2: Connected to the other end of the varistor element

Functional Features

  • Transient Voltage Suppression: Effectively limits transient overvoltage conditions.
  • Fast Response Time: Responds to voltage surges in less than 25 nanoseconds.
  • High Energy Absorption: Capable of absorbing up to 360J of energy during transient events.

Advantages

  • Effective protection against voltage surges
  • Fast response time
  • High energy absorption capacity
  • Wide operating temperature range

Disadvantages

  • Limited to specific voltage ratings
  • Requires careful consideration of clamping voltage for application compatibility

Working Principles

The V68ZA20 varistor operates based on the principle of non-linear resistance, where its resistance decreases as the applied voltage increases. This allows it to divert excess current away from sensitive components during transient overvoltage events.

Detailed Application Field Plans

The V68ZA20 varistor finds applications in various electronic systems, including: - Power supplies - Telecommunications equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to V68ZA20 include: - V56ZA20: 56V voltage rating - V82ZA20: 82V voltage rating - V100ZA20: 100V voltage rating

In conclusion, the V68ZA20 varistor offers effective transient voltage suppression, fast response time, and high energy absorption, making it a valuable component in protecting electronic circuits from voltage surges.

Word Count: 456

רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של V68ZA20 בפתרונות טכניים

  1. What is the V68ZA20?

    • The V68ZA20 is a metal oxide varistor (MOV) component used for transient voltage suppression in electronic circuits.

  2. What are the key specifications of the V68ZA20?

    • The V68ZA20 has a maximum allowable voltage of 68V and a peak current capability of 4500A.

  3. How does the V68ZA20 provide overvoltage protection?

    • The V68ZA20 clamps excessive voltage levels by diverting surge currents away from sensitive components, thereby protecting them from damage.

  4. In what applications can the V68ZA20 be used?

    • The V68ZA20 is commonly employed in power supplies, industrial equipment, telecommunications devices, and automotive electronics to safeguard against voltage transients.

  5. What is the response time of the V68ZA20?

    • The V68ZA20 offers a rapid response time, typically within nanoseconds, to effectively suppress transient voltage spikes.

  6. Can the V68ZA20 be used in outdoor environments?

    • Yes, the V68ZA20 is designed to withstand outdoor conditions and is suitable for use in outdoor electrical enclosures and equipment.

  7. Is the V68ZA20 RoHS compliant?

    • Yes, the V68ZA20 is compliant with the Restriction of Hazardous Substances (RoHS) directive, ensuring it meets environmental standards.

  8. What is the operating temperature range of the V68ZA20?

    • The V68ZA20 is rated for operation within a wide temperature range, typically from -40°C to 85°C, making it suitable for various environments.

  9. Does the V68ZA20 require any additional protective circuitry?

    • In most cases, the V68ZA20 can be directly integrated into the circuit without requiring additional protective components, simplifying its application.

  10. Are there any recommended layout considerations when using the V68ZA20?

    • It is advisable to minimize lead lengths and ensure proper grounding to optimize the performance of the V68ZA20 in suppressing transient voltages.