Vishay Semiconductor Diodes Division
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3KASMC40HE3/9AT
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3KASMC40HE3/9AT Product Overview

Introduction

The 3KASMC40HE3/9AT is a high-performance TVS (Transient Voltage Suppressor) diode designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. This entry provides a comprehensive overview of the product, including its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.

Basic Information Overview

  • Category: Electronic Components
  • Use: Protection against voltage transients
  • Characteristics: High surge capability, low clamping voltage, fast response time
  • Package: SMC (DO-214AB)
  • Essence: Transient voltage suppression
  • Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Peak Pulse Power: 3000W
  • Standoff Voltage: 40V
  • Breakdown Voltage: 44.4V
  • Clamping Voltage: 64.5V
  • Operating Temperature Range: -55°C to +150°C
  • RoHS Compliant: Yes

Detailed Pin Configuration

The 3KASMC40HE3/9AT TVS diode has a standard SMC package with two leads. The pin configuration is as follows: - Pin 1: Anode - Pin 2: Cathode

Functional Features

  • Transient Voltage Suppression: Provides protection against voltage transients by diverting excessive current away from sensitive components.
  • Fast Response Time: Reacts quickly to transient events, minimizing the risk of damage to connected devices.
  • High Surge Capability: Can withstand large surge currents without degradation.

Advantages and Disadvantages

Advantages

  • Effective protection against voltage transients
  • Fast response time
  • RoHS compliant

Disadvantages

  • Clamping voltage may be relatively high for some applications
  • SMC package may not be suitable for all mounting configurations

Working Principles

When a transient voltage event occurs, the 3KASMC40HE3/9AT TVS diode conducts current and clamps the voltage to a safe level, protecting downstream components from damage. This is achieved through the use of avalanche breakdown and rapid conduction characteristics.

Detailed Application Field Plans

The 3KASMC40HE3/9AT TVS diode is widely used in various applications, including: - Power supplies - Communication equipment - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

For users seeking alternative TVS diodes with similar specifications and performance, the following models can be considered: - 3KP40CA-TP - P6SMBJ40A - SMAJ40A

In conclusion, the 3KASMC40HE3/9AT TVS diode offers reliable protection against voltage transients and is suitable for a wide range of applications. Its high surge capability, fast response time, and RoHS compliance make it a valuable component in electronic systems requiring robust transient voltage suppression.

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Noem 10 veelgestelde vragen en antwoorden met betrekking tot de toepassing van 3KASMC40HE3/9AT in technische oplossingen

  1. What is 3KASMC40HE3/9AT?

    • 3KASMC40HE3/9AT is a surface mount transient voltage suppressor diode designed to protect sensitive electronics from voltage spikes and surges.

  2. What are the key features of 3KASMC40HE3/9AT?

    • The key features include a high surge capability, low clamping voltage, and fast response time, making it suitable for a wide range of applications.

  3. Where can 3KASMC40HE3/9AT be used?

    • It can be used in various technical solutions such as power supplies, automotive electronics, industrial equipment, and telecommunications systems.

  4. What is the maximum voltage rating of 3KASMC40HE3/9AT?

    • The maximum voltage rating is typically around 40 volts, making it suitable for protecting components in low voltage circuits.

  5. How does 3KASMC40HE3/9AT provide protection?

    • It provides protection by diverting excess current away from sensitive components when a voltage surge occurs, thus preventing damage.

  6. What are the environmental specifications of 3KASMC40HE3/9AT?

    • It is typically designed to meet industry standards for temperature range, humidity resistance, and environmental compliance.

  7. Can 3KASMC40HE3/9AT be used in high-frequency applications?

    • Yes, it is designed to operate effectively in high-frequency applications, making it suitable for modern electronic systems.

  8. Are there any recommended layout considerations for using 3KASMC40HE3/9AT?

    • Yes, proper PCB layout and placement are important to ensure optimal performance and protection capabilities.

  9. What are the typical failure modes of 3KASMC40HE3/9AT?

    • Common failure modes include thermal breakdown under excessive current or voltage stress, which can lead to reduced protection capability.

  10. Where can I find detailed application notes for using 3KASMC40HE3/9AT in technical solutions?

    • Detailed application notes and guidelines can usually be found in the product datasheet provided by the manufacturer or through their technical support resources.