Microsemi Corporation
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SMAJ4478E3/TR13
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SMAJ4478E3/TR13

Product Overview

Category

SMAJ4478E3/TR13 belongs to the category of TVS (Transient Voltage Suppressor) diodes.

Use

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

Characteristics

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

Package

The SMAJ4478E3/TR13 is available in a DO-214AC (SMA) package.

Essence

The essence of SMAJ4478E3/TR13 lies in its ability to provide reliable overvoltage protection for electronic circuits.

Packaging/Quantity

It is typically packaged in reels with a quantity of 3000 units per reel.

Specifications

  • Standoff Voltage: 78V
  • Breakdown Voltage: 86.7V
  • Maximum Clamping Voltage: 126V
  • Peak Pulse Current: 30A
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ4478E3/TR13 has two pins: 1. Anode (A) 2. Cathode (K)

Functional Features

  • Bi-directional TVS diode
  • Provides low clamping voltage under surge
  • Protects against ESD and other transient voltage events

Advantages

  • Fast response time ensures quick protection
  • Low clamping voltage prevents damage to sensitive components
  • High surge current capability enhances reliability

Disadvantages

  • May require additional circuitry for comprehensive overvoltage protection
  • Sensitive to reverse leakage current

Working Principles

When a transient voltage event occurs, the SMAJ4478E3/TR13 conducts and clamps the voltage to a safe level, diverting the excess current away from the protected circuit.

Detailed Application Field Plans

SMAJ4478E3/TR13 is commonly used in: - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies - Consumer electronics

Detailed and Complete Alternative Models

Some alternative models to SMAJ4478E3/TR13 include: - P6SMB78CA - 1.5KE78CA - SA78CA

In conclusion, SMAJ4478E3/TR13 is a vital component in safeguarding electronic circuits from transient voltage events, offering fast response, low clamping voltage, and high surge current capability. Its applications span across various industries, making it an essential part of modern electronic systems.

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기술 솔루션에 SMAJ4478E3/TR13 적용과 관련된 10가지 일반적인 질문과 답변을 나열하세요.

  1. What is SMAJ4478E3/TR13?

    • SMAJ4478E3/TR13 is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and transients.

  2. What is the maximum working voltage of SMAJ4478E3/TR13?

    • The maximum working voltage of SMAJ4478E3/TR13 is 78V.

  3. What is the peak pulse power of SMAJ4478E3/TR13?

    • The peak pulse power of SMAJ4478E3/TR13 is 400W.

  4. What are the typical applications of SMAJ4478E3/TR13?

    • SMAJ4478E3/TR13 is commonly used in applications such as power supplies, telecommunications equipment, automotive electronics, and industrial control systems for transient voltage protection.

  5. What is the clamping voltage of SMAJ4478E3/TR13?

    • The clamping voltage of SMAJ4478E3/TR13 is 103V at 10A.

  6. What is the operating temperature range of SMAJ4478E3/TR13?

    • The operating temperature range of SMAJ4478E3/TR13 is -55°C to +150°C.

  7. Is SMAJ4478E3/TR13 RoHS compliant?

    • Yes, SMAJ4478E3/TR13 is RoHS compliant, making it suitable for use in environmentally friendly electronic products.

  8. What is the package type of SMAJ4478E3/TR13?

    • SMAJ4478E3/TR13 is available in a DO-214AC (SMA) package.

  9. Does SMAJ4478E3/TR13 have reverse standoff voltage?

    • Yes, SMAJ4478E3/TR13 has a reverse standoff voltage of 78V.

  10. Can SMAJ4478E3/TR13 be used for ESD protection?

    • Yes, SMAJ4478E3/TR13 can be used for electrostatic discharge (ESD) protection in various electronic circuits and systems.