Vishay Semiconductor Diodes Division
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SM15T12AHE3/9AT
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SM15T12AHE3/9AT

Product Overview

Category: TVS Diode
Use: Protection against voltage transients
Characteristics: Low clamping voltage, high surge capability
Package: SMC (DO-214AB)
Essence: Transient voltage suppressor diode
Packaging/Quantity: Tape & Reel, 3000 units

Specifications

  • Voltage - Reverse Standoff (Typ): 12V
  • Voltage - Breakdown (Min): 13.3V
  • Voltage - Clamping (Max) @ Ipp: 19.9V
  • Current - Peak Pulse (10/1000µs): 21.2A
  • Power - Peak Pulse: 1500W
  • Operating Temperature: -55°C to 150°C

Detailed Pin Configuration

The SM15T12AHE3/9AT TVS diode has a standard SMC (DO-214AB) package with two pins. Pin 1 is the cathode and pin 2 is the anode.

Functional Features

  • Fast response time
  • Low leakage current
  • High surge capability
  • RoHS compliant

Advantages and Disadvantages

Advantages: - Effective protection against voltage transients - Fast response time for transient suppression - RoHS compliant and lead-free

Disadvantages: - Relatively low breakdown voltage compared to some alternatives - Limited to lower voltage applications

Working Principles

The SM15T12AHE3/9AT TVS diode operates by diverting excess current away from sensitive electronic components when a transient voltage spike occurs. It achieves this by rapidly switching into its low impedance state, effectively clamping the voltage to a safe level and protecting downstream components.

Detailed Application Field Plans

This TVS diode is commonly used in various electronic systems such as power supplies, communication equipment, automotive electronics, and industrial controls. Its primary function is to protect sensitive components from voltage surges caused by lightning, ESD, or other transient events.

Detailed and Complete Alternative Models

  • Alternative Model 1: SM15T12AHE3/9AG
  • Alternative Model 2: P6KE12CA
  • Alternative Model 3: 1.5SMC12AT3G

In conclusion, the SM15T12AHE3/9AT TVS diode offers effective protection against voltage transients with its low clamping voltage and high surge capability. While it has limitations in higher voltage applications, it is a reliable choice for safeguarding sensitive electronic components in various industries.

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技術ソリューションにおける SM15T12AHE3/9AT 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 SM15T12AHE3/9AT?

    • The SM15T12AHE3/9AT is a TVS (transient voltage suppressor) diode designed to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum peak pulse power of the SM15T12AHE3/9AT?

    • The maximum peak pulse power of the SM15T12AHE3/9AT is 1500 watts.

  3. What is the breakdown voltage of the SM15T12AHE3/9AT?

    • The breakdown voltage of the SM15T12AHE3/9AT is 12V.

  4. What are some common applications for the SM15T12AHE3/9AT?

    • Common applications for the SM15T12AHE3/9AT include protection of power supplies, industrial equipment, automotive electronics, and telecommunications equipment.

  5. What is the operating temperature range of the SM15T12AHE3/9AT?

    • The operating temperature range of the SM15T12AHE3/9AT is -55°C to 175°C.

  6. What is the package type of the SM15T12AHE3/9AT?

    • The SM15T12AHE3/9AT comes in a DO-214AB (SMC) package.

  7. Is the SM15T12AHE3/9AT RoHS compliant?

    • Yes, the SM15T12AHE3/9AT is RoHS compliant.

  8. What is the clamping voltage of the SM15T12AHE3/9AT?

    • The clamping voltage of the SM15T12AHE3/9AT is 19.9V at 10A.

  9. Can the SM15T12AHE3/9AT be used for surge protection in power supply units?

    • Yes, the SM15T12AHE3/9AT is suitable for surge protection in power supply units.

  10. Does the SM15T12AHE3/9AT have any industry certifications?

    • The SM15T12AHE3/9AT is certified to meet various industry standards, including AEC-Q101 for automotive applications.