Vishay Semiconductor Diodes Division
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SM8S40ATHE3/I
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SM8S40ATHE3/I

Product Overview

Category: TVS Diode
Use: Protection against voltage transients
Characteristics: High surge capability, low clamping voltage
Package: Surface mount
Essence: Provides robust protection for sensitive electronics
Packaging/Quantity: Tape and reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 800W
  • Breakdown Voltage: 40V
  • Clamping Voltage: 64.5V
  • Operating Temperature Range: -55°C to +150°C
  • Package Type: DO-218AB

Detailed Pin Configuration

The SM8S40ATHE3/I has a DO-218AB package with two pins. Pin 1 is the anode and pin 2 is the cathode.

Functional Features

  • Robust surge protection
  • Low clamping voltage
  • Fast response time
  • High surge capability

Advantages and Disadvantages

Advantages: - Provides reliable protection against voltage transients - Low clamping voltage ensures minimal impact on protected circuits

Disadvantages: - May require additional circuitry for comprehensive overvoltage protection

Working Principles

The SM8S40ATHE3/I operates by diverting excessive voltage transients away from sensitive electronic components, thereby safeguarding them from damage. When a transient voltage spike occurs, the TVS diode rapidly conducts, shunting the excess energy to ground and limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SM8S40ATHE3/I is commonly used in various applications such as: - Power supplies - Industrial equipment - Automotive electronics - Telecommunication systems - Consumer electronics

Detailed and Complete Alternative Models

  • SM8S36AHE3/2D: Similar specifications with a lower breakdown voltage of 36V
  • SM8S33AHE3/2D: Lower breakdown voltage of 33V, suitable for applications with lower voltage requirements
  • SM8S30AHE3/2D: Offers protection with a breakdown voltage of 30V, ideal for sensitive electronics with lower voltage tolerance

This TVS diode provides essential protection against voltage transients, making it a crucial component in various electronic systems. Its high surge capability and low clamping voltage ensure reliable performance in demanding environments.

Word count: 320

تکنیکی حل میں SM8S40ATHE3/I کے اطلاق سے متعلق 10 عام سوالات اور جوابات کی فہرست بنائیں

  1. What is the SM8S40ATHE3/I?

    • The SM8S40ATHE3/I is a TVS (transient voltage suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events.

  2. What is the maximum peak pulse power of the SM8S40ATHE3/I?

    • The maximum peak pulse power of the SM8S40ATHE3/I is 800 watts for an 10/1000μs waveform.

  3. What is the breakdown voltage of the SM8S40ATHE3/I?

    • The breakdown voltage of the SM8S40ATHE3/I is 44.4V.

  4. What are the typical applications of the SM8S40ATHE3/I?

    • The SM8S40ATHE3/I is commonly used in surge protection for telecommunications equipment, power supplies, industrial control systems, and automotive electronics.

  5. What is the operating temperature range of the SM8S40ATHE3/I?

    • The operating temperature range of the SM8S40ATHE3/I is -55°C to +150°C.

  6. What is the clamping voltage of the SM8S40ATHE3/I?

    • The clamping voltage of the SM8S40ATHE3/I is 77.4V at 16A.

  7. Is the SM8S40ATHE3/I RoHS compliant?

    • Yes, the SM8S40ATHE3/I is RoHS compliant, meaning it meets the Restriction of Hazardous Substances directive.

  8. What package type does the SM8S40ATHE3/I come in?

    • The SM8S40ATHE3/I is available in a DO-218AB package.

  9. What are the key features of the SM8S40ATHE3/I?

    • The key features of the SM8S40ATHE3/I include low clamping voltage, fast response time, and high surge capability.

  10. What are some recommended layout and assembly guidelines for using the SM8S40ATHE3/I in a circuit?

    • It is recommended to minimize the length and area of the leads, use short traces to connect the device to the circuit, and provide adequate thermal relief for the device during soldering.