Vishay Semiconductor Diodes Division
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SMAJ78AHE3/61
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SMAJ78AHE3/61

Product Overview

Category

The SMAJ78AHE3/61 belongs to the category of TVS (Transient Voltage Suppressor) diodes.

Use

It is used for surge protection in electronic circuits, providing a high level of protection against transient voltage events.

Characteristics

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

Package

The SMAJ78AHE3/61 is available in a DO-214AC (SMA) package.

Essence

This TVS diode is essential for safeguarding sensitive electronic components from voltage spikes and surges.

Packaging/Quantity

The SMAJ78AHE3/61 is typically packaged in reels with quantities varying based on customer requirements.

Specifications

  • Standoff Voltage: 78V
  • Breakdown Voltage: 86.7V
  • Maximum Reverse Leakage Current: 1μA
  • Peak Pulse Power Dissipation: 400W
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ78AHE3/61 TVS diode has two pins, anode, and cathode, which are clearly marked on the device's package.

Functional Features

  • Provides protection against voltage transients
  • Fast response time ensures minimal impact on the protected circuit
  • Low clamping voltage limits the voltage across the protected load

Advantages

  • Robust surge protection
  • Compact form factor
  • Wide operating temperature range

Disadvantages

  • Limited maximum reverse leakage current may not be suitable for ultra-sensitive applications
  • Requires careful consideration of placement within the circuit for optimal performance

Working Principles

When a transient voltage event occurs, the TVS diode conducts and diverts the excess energy away from the protected circuit, limiting the voltage across the load.

Detailed Application Field Plans

The SMAJ78AHE3/61 is commonly used in: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics

Detailed and Complete Alternative Models

  • P6KE82CA
  • 1.5KE82A
  • SMBJ78CA

In conclusion, the SMAJ78AHE3/61 TVS diode offers reliable surge protection for a wide range of electronic applications, making it an essential component in ensuring the longevity and reliability of sensitive electronic circuits.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací SMAJ78AHE3/61 v technických řešeních

  1. What is the maximum reverse voltage of SMAJ78AHE3/61?

    • The maximum reverse voltage of SMAJ78AHE3/61 is 78V.

  2. What is the typical junction capacitance of SMAJ78AHE3/61?

    • The typical junction capacitance of SMAJ78AHE3/61 is 110pF.

  3. What is the peak pulse power dissipation of SMAJ78AHE3/61?

    • The peak pulse power dissipation of SMAJ78AHE3/61 is 400W.

  4. What are the applications of SMAJ78AHE3/61?

    • SMAJ78AHE3/61 is commonly used in surge protection for sensitive electronics, such as in telecommunications equipment, industrial control systems, and automotive electronics.

  5. What is the breakdown voltage of SMAJ78AHE3/61?

    • The breakdown voltage of SMAJ78AHE3/61 is typically 86.7V.

  6. What is the operating temperature range of SMAJ78AHE3/61?

    • The operating temperature range of SMAJ78AHE3/61 is -55°C to +150°C.

  7. What is the forward voltage drop of SMAJ78AHE3/61 at a specified current?

    • The forward voltage drop of SMAJ78AHE3/61 at 3A is typically 3.5V.

  8. Is SMAJ78AHE3/61 RoHS compliant?

    • Yes, SMAJ78AHE3/61 is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  9. What is the packaging type of SMAJ78AHE3/61?

    • SMAJ78AHE3/61 is available in a variety of packaging options, including DO-214AC (SMA) and DO-214AB (SMC).

  10. Can SMAJ78AHE3/61 be used for ESD protection?

    • Yes, SMAJ78AHE3/61 can be used for electrostatic discharge (ESD) protection in various electronic circuits and systems.