STMicroelectronics
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SM30T21CAY
צפה בפרטים DataSheets

SM30T21CAY

Product Overview

Category: Electronic Component
Use: Voltage Suppressor
Characteristics: High surge capability, low clamping voltage
Package: SMC (DO-214AB)
Essence: Protects sensitive electronic devices from voltage transients
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 3000W
  • Breakdown Voltage: 21V
  • Clamping Voltage: 34.4V
  • Operating Temperature Range: -55°C to +150°C
  • Storage Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SM30T21CAY has two pins, with the cathode connected to the marked side of the package and the anode connected to the opposite side.

Functional Features

  • High surge capability for reliable protection
  • Low clamping voltage to minimize stress on protected circuits
  • Fast response time to transient voltage events

Advantages and Disadvantages

Advantages: 1. High surge capability ensures robust protection. 2. Low clamping voltage prevents damage to sensitive components. 3. Fast response time provides quick protection against transients.

Disadvantages: 1. Higher cost compared to standard diodes. 2. SMC package may require additional board space compared to smaller packages.

Working Principles

The SM30T21CAY operates by diverting excess transient voltage away from sensitive components, thereby limiting the voltage across the protected circuit. When a transient voltage event occurs, the device rapidly switches into its low impedance state, shunting the excess energy to ground and protecting downstream components.

Detailed Application Field Plans

The SM30T21CAY is commonly used in various applications such as: - Power supplies - Industrial equipment - Automotive electronics - Telecommunication systems - Consumer electronics

Detailed and Complete Alternative Models

  1. SM30T21CAE3: Similar specifications and package, but with a lower breakdown voltage of 20V.
  2. SM30T22CAY: Higher breakdown voltage of 22V, suitable for applications requiring higher clamping voltages.
  3. SM30T20CAY: Lower breakdown voltage of 20V, suitable for applications with lower voltage requirements.

In conclusion, the SM30T21CAY is a high-performance voltage suppressor offering reliable protection for a wide range of electronic applications.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של SM30T21CAY בפתרונות טכניים

  1. What is the maximum power dissipation of SM30T21CAY?

    • The maximum power dissipation of SM30T21CAY is 3000W.

  2. What is the breakdown voltage of SM30T21CAY?

    • The breakdown voltage of SM30T21CAY is 21V.

  3. What is the operating temperature range of SM30T21CAY?

    • The operating temperature range of SM30T21CAY is -55°C to +175°C.

  4. What is the package type of SM30T21CAY?

    • SM30T21CAY comes in a DO-214AB (SMC) package.

  5. What are the typical applications of SM30T21CAY?

    • SM30T21CAY is commonly used in surge protection for telecommunications equipment, automotive electronics, and industrial controls.

  6. What is the reverse stand-off voltage of SM30T21CAY?

    • The reverse stand-off voltage of SM30T21CAY is 17.8V.

  7. Does SM30T21CAY have a low leakage current?

    • Yes, SM30T21CAY has a low leakage current, making it suitable for sensitive electronic devices.

  8. Is SM30T21CAY RoHS compliant?

    • Yes, SM30T21CAY is RoHS compliant, meeting environmental standards.

  9. Can SM30T21CAY be used for overvoltage protection in power supplies?

    • Yes, SM30T21CAY can be used for overvoltage protection in power supplies and other electronic circuits.

  10. What is the response time of SM30T21CAY during transient events?

    • SM30T21CAY has a fast response time, providing effective protection during transient events.