Littelfuse Inc.
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SMF4L7.0A
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SMF4L7.0A

Product Overview

Category

SMF4L7.0A belongs to the category of transient voltage suppressor (TVS) diodes.

Use

It is used to protect sensitive electronic components from voltage transients induced by lightning, electrostatic discharge (ESD), and other transient voltage events.

Characteristics

  • Low clamping voltage
  • Fast response time
  • High surge current capability
  • RoHS compliant

Package

SMF4L7.0A is typically available in a surface mount package.

Essence

The essence of SMF4L7.0A lies in its ability to divert excessive current away from sensitive components, thereby safeguarding them from damage.

Packaging/Quantity

It is commonly packaged in reels or tape and reel, with quantities varying based on manufacturer specifications.

Specifications

  • Standoff Voltage: 7.0V
  • Breakdown Voltage: 8.55V
  • Maximum Clamping Voltage: 11.2V
  • Peak Pulse Current: 10A
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

SMF4L7.0A typically features a SOD-123FL package with two pins for connection.

Functional Features

  • Bi-directional TVS diode
  • Low leakage current
  • ESD protection up to ±30kV (contact discharge)

Advantages

  • Provides robust protection against transient voltage events
  • Fast response time ensures minimal impact on the protected circuit
  • Compact and easy to integrate into circuit designs

Disadvantages

  • May require additional circuitry for comprehensive overvoltage protection
  • Limited to specific voltage ratings

Working Principles

When a transient voltage event occurs, the SMF4L7.0A diode conducts excess current away from the protected circuit, limiting the voltage across the circuit to a safe level.

Detailed Application Field Plans

SMF4L7.0A is commonly used in: - Consumer electronics - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

  • SMAJ7.0A
  • P6SMB7.0A
  • SMCJ7.0A
  • 1.5SMC7.0A

In conclusion, SMF4L7.0A is a vital component in protecting electronic circuits from transient voltage events, offering fast response times and high surge current capabilities. Its compact size and bi-directional functionality make it suitable for a wide range of applications, although designers should consider its limitations and potential need for supplementary protection measures.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMF4L7.0A v technických řešeních

  1. What is SMF4L7.0A?

    • SMF4L7.0A is a type of TVS (transient voltage suppressor) diode designed to protect electronic circuits from voltage spikes and transient events.

  2. Where can SMF4L7.0A be used in technical solutions?

    • SMF4L7.0A can be used in various technical solutions such as power supplies, communication equipment, automotive electronics, and industrial control systems.

  3. What is the maximum voltage rating of SMF4L7.0A?

    • The maximum voltage rating of SMF4L7.0A is 7.0V.

  4. How does SMF4L7.0A protect electronic circuits?

    • SMF4L7.0A clamps the voltage during transient events, diverting excess current away from sensitive components and preventing damage.

  5. What are the key features of SMF4L7.0A?

    • Some key features of SMF4L7.0A include low clamping voltage, fast response time, and high surge capability.

  6. Can SMF4L7.0A be used for ESD protection?

    • Yes, SMF4L7.0A can provide effective electrostatic discharge (ESD) protection for sensitive electronic components.

  7. Is SMF4L7.0A suitable for high-speed data lines?

    • Yes, SMF4L7.0A is suitable for protecting high-speed data lines such as USB, HDMI, and Ethernet interfaces.

  8. What are the typical applications of SMF4L7.0A in automotive electronics?

    • In automotive electronics, SMF4L7.0A can be used to protect ECUs (engine control units), infotainment systems, and other electronic modules from voltage transients.

  9. Does SMF4L7.0A require any external components for proper operation?

    • SMF4L7.0A typically does not require any external components for basic transient voltage suppression, but additional circuitry may be needed for specific applications.

  10. Are there any recommended layout considerations for using SMF4L7.0A in PCB designs?

    • It is recommended to place SMF4L7.0A as close as possible to the protected circuitry, minimize trace lengths, and ensure proper grounding for optimal performance.