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SMAJ70A
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SMAJ70A - Product Overview

Introduction

The SMAJ70A belongs to the category of transient voltage suppressor diodes, commonly used for surge protection in electronic circuits. This entry provides a comprehensive overview of the SMAJ70A, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Transient Voltage Suppressor Diode
  • Use: Surge protection in electronic circuits
  • Characteristics: Fast response time, low clamping voltage, high surge current capability
  • Package: DO-214AC (SMA), SMC package
  • Essence: Protects sensitive electronic components from voltage transients
  • Packaging/Quantity: Available in tape and reel packaging, quantity varies by manufacturer

Specifications

  • Voltage - Reverse Standoff (Typ): 70V
  • Voltage - Breakdown (Min): 77.8V
  • Clamping Voltage @ Ipp: 113V
  • Peak Pulse Current: 11.3A
  • Capacitance @ Vr, F: 150pF @ 0V, 1MHz
  • Operating Temperature: -55°C ~ 150°C

Detailed Pin Configuration

The SMAJ70A typically has two pins, with the anode connected to the positive side and the cathode connected to the negative side of the circuit.

Functional Features

  • Transient Voltage Suppression: Rapidly clamps excessive voltage to protect downstream components.
  • Fast Response Time: Quickly responds to voltage transients to prevent damage.
  • High Surge Current Capability: Can handle large surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective surge protection
  • Fast response time
  • Compact size

Disadvantages

  • Limited power dissipation capability
  • May require additional circuitry for comprehensive protection

Working Principles

The SMAJ70A operates based on the principle of avalanche breakdown, where it rapidly conducts excess voltage to ground when a transient overvoltage occurs, thereby protecting the connected circuitry.

Detailed Application Field Plans

The SMAJ70A is widely used in various applications, including: - Power supplies - Telecommunication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

Several alternative models to SMAJ70A include: - P6SMBJ70A - 1.5SMCJ70A - SMBJ70A - SMCJ70A - P4SMAJ70A

In conclusion, the SMAJ70A transient voltage suppressor diode offers effective surge protection with its fast response time and high surge current capability. While it has limitations in power dissipation, it is widely used across diverse electronic applications.

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Luettele 10 yleistä kysymystä ja vastausta, jotka liittyvät SMAJ70A :n soveltamiseen teknisissä ratkaisuissa

  1. What is SMAJ70A?

    • SMAJ70A is a surface mount transient voltage suppressor diode that is commonly used to protect electronic circuits from overvoltage transients.

  2. What is the maximum peak pulse power of SMAJ70A?

    • The maximum peak pulse power of SMAJ70A is 400 watts.

  3. What is the breakdown voltage of SMAJ70A?

    • The breakdown voltage of SMAJ70A is 77.8V.

  4. What are the typical applications of SMAJ70A?

    • SMAJ70A is typically used in various electronic devices and systems such as power supplies, telecommunications equipment, automotive electronics, and industrial controls to protect against voltage surges and spikes.

  5. What is the operating temperature range of SMAJ70A?

    • The operating temperature range of SMAJ70A is -55°C to +150°C.

  6. How does SMAJ70A provide protection against transient voltage spikes?

    • SMAJ70A clamps the transient voltage to a safe level by diverting excess current away from sensitive components, thereby protecting them from damage.

  7. Is SMAJ70A RoHS compliant?

    • Yes, SMAJ70A is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. What is the package type of SMAJ70A?

    • SMAJ70A is available in a DO-214AC (SMA) package.

  9. Can SMAJ70A be used for ESD protection?

    • Yes, SMAJ70A can also be used for electrostatic discharge (ESD) protection in electronic circuits.

  10. What are the key features of SMAJ70A?

    • Some key features of SMAJ70A include its low profile, fast response time, and high surge capability, making it suitable for a wide range of applications requiring transient voltage suppression.