Vishay Semiconductor Diodes Division
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SMAJ40HE3/5A
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SMAJ40HE3/5A

Product Overview

Category

The SMAJ40HE3/5A belongs to the category of electronic components, specifically within the realm of semiconductor devices.

Use

This product is primarily used for transient voltage suppression in electronic circuits, providing protection against voltage spikes and surges.

Characteristics

  • Package: SMA (DO-214AC)
  • Essence: Transient Voltage Suppressor (TVS) Diode
  • Packaging/Quantity: Available in tape and reel packaging with varying quantities depending on supplier.

Specifications

The SMAJ40HE3/5A has the following key specifications: - Voltage Rating: 40V - Power Dissipation: 400W - Breakdown Voltage: 44.4V - Clamping Voltage: 64.5V - Peak Pulse Current: 5A - Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMAJ40HE3/5A follows the standard pin configuration for SMA package diodes, with two leads for connection to the circuit.

Functional Features

  • Transient Voltage Suppression: Effectively clamps transient overvoltage events to protect downstream components.
  • Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuitry.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Compact form factor
  • Fast response time

Disadvantages

  • Limited power dissipation capability compared to larger TVS diodes
  • Higher clamping voltage compared to some alternative models

Working Principles

The SMAJ40HE3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage away from the protected circuit, limiting the voltage across the load.

Detailed Application Field Plans

The SMAJ40HE3/5A finds application in various electronic systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems

Detailed and Complete Alternative Models

Some alternative models to the SMAJ40HE3/5A include: - P6KE36CA - 1.5KE33A - SMBJ40CA

In conclusion, the SMAJ40HE3/5A serves as a crucial component in safeguarding electronic circuits from voltage transients, offering a balance of performance and compactness. Its application spans across diverse industries, ensuring the reliability and longevity of electronic systems.

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技術ソリューションにおける SMAJ40HE3/5A の適用に関連する 10 件の一般的な質問と回答をリストします。

  1. What is the maximum peak pulse current for SMAJ40HE3/5A?

    • The maximum peak pulse current for SMAJ40HE3/5A is 200A.

  2. What is the breakdown voltage of SMAJ40HE3/5A?

    • The breakdown voltage of SMAJ40HE3/5A is 44.4V.

  3. What is the typical clamping voltage of SMAJ40HE3/5A?

    • The typical clamping voltage of SMAJ40HE3/5A is 64.6V at 10A.

  4. What is the operating temperature range for SMAJ40HE3/5A?

    • The operating temperature range for SMAJ40HE3/5A is -55°C to +150°C.

  5. What is the peak power dissipation of SMAJ40HE3/5A?

    • The peak power dissipation of SMAJ40HE3/5A is 400W.

  6. What are the typical applications for SMAJ40HE3/5A?

    • SMAJ40HE3/5A is commonly used in surge protection for sensitive electronics, such as in telecommunications equipment, industrial control systems, and automotive electronics.

  7. What is the response time of SMAJ40HE3/5A?

    • The response time of SMAJ40HE3/5A is typically less than 1 picosecond.

  8. Is SMAJ40HE3/5A RoHS compliant?

    • Yes, SMAJ40HE3/5A is RoHS compliant.

  9. What is the package type of SMAJ40HE3/5A?

    • SMAJ40HE3/5A is available in a DO-214AC (SMA) package.

  10. Can SMAJ40HE3/5A be used for overvoltage protection in power supply circuits?

    • Yes, SMAJ40HE3/5A is suitable for overvoltage protection in power supply circuits, providing reliable protection against transient voltage events.