Microsemi Corporation
画像はイメージの場合もございます。
商品詳細は仕様をご覧ください。
SMAJ4731AE3/TR13
詳細を表示 DataSheets

SMAJ4731AE3/TR13

Product Overview

Category: Diode
Use: Voltage regulation and protection
Characteristics: Low forward voltage drop, high surge capability
Package: DO-214AC (SMA)
Essence: Semiconductor diode for transient voltage suppression
Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

  • Part Number: SMAJ4731AE3/TR13
  • Voltage - Reverse Standoff (Typ): 43.2V
  • Voltage - Breakdown (Min): 47.8V
  • Clamping Voltage (Max) @ Ipp: 77.4V
  • Current - Peak Pulse (10/1000µs): 30.6A
  • Power - Peak Pulse: 400W
  • Type: Zener

Detailed Pin Configuration

The SMAJ4731AE3/TR13 is a unidirectional TVS diode with two pins. The cathode is connected to the marked side of the package, while the anode is connected to the unmarked side.

Functional Features

  • Provides transient voltage suppression for sensitive electronics
  • Fast response time to protect against voltage transients
  • Low clamping voltage to minimize stress on protected components

Advantages and Disadvantages

Advantages: - High surge capability - Low forward voltage drop - Compact package size

Disadvantages: - Limited power dissipation capability - May require additional circuitry for comprehensive overvoltage protection

Working Principles

The SMAJ4731AE3/TR13 operates by diverting excess transient voltage away from sensitive components, thereby protecting them from damage. When a voltage transient occurs, the diode rapidly switches into its low-impedance state, providing a path for the transient current to bypass the protected circuit.

Detailed Application Field Plans

The SMAJ4731AE3/TR13 is commonly used in various electronic systems, including: - Power supplies - Communication equipment - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

  • Alternative Model 1: P6SMB43CA

    • Voltage - Reverse Standoff (Typ): 43.2V
    • Voltage - Breakdown (Min): 47.8V
    • Clamping Voltage (Max) @ Ipp: 77.4V
    • Current - Peak Pulse (10/1000µs): 30.6A
    • Power - Peak Pulse: 600W

  • Alternative Model 2: 1.5KE47CA

    • Voltage - Reverse Standoff (Typ): 43.2V
    • Voltage - Breakdown (Min): 47.8V
    • Clamping Voltage (Max) @ Ipp: 77.4V
    • Current - Peak Pulse (10/1000µs): 30.6A
    • Power - Peak Pulse: 1500W

In conclusion, the SMAJ4731AE3/TR13 is a vital component in protecting electronic circuits from transient voltage events. Its compact size, high surge capability, and fast response make it an ideal choice for a wide range of applications. However, designers should consider its limitations in power dissipation and may need to complement it with additional protective measures for comprehensive overvoltage protection.

技術ソリューションにおける SMAJ4731AE3/TR13 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 SMAJ4731AE3/TR13 used for?

    • SMAJ4731AE3/TR13 is commonly used as a transient voltage suppressor diode to protect sensitive electronic components from voltage spikes and transients.

  2. What is the maximum peak pulse power of SMAJ4731AE3/TR13?

    • The maximum peak pulse power of SMAJ4731AE3/TR13 is typically 400 watts.

  3. What is the breakdown voltage of SMAJ4731AE3/TR13?

    • The breakdown voltage of SMAJ4731AE3/TR13 is 43.2 volts.

  4. What are the typical applications of SMAJ4731AE3/TR13?

    • SMAJ4731AE3/TR13 is commonly used in telecommunications equipment, industrial control systems, automotive electronics, and other applications where protection against voltage surges is necessary.

  5. What is the operating temperature range of SMAJ4731AE3/TR13?

    • The operating temperature range of SMAJ4731AE3/TR13 is typically -55°C to +150°C.

  6. What is the response time of SMAJ4731AE3/TR13?

    • The response time of SMAJ4731AE3/TR13 is very fast, typically responding within nanoseconds to clamp the voltage spike.

  7. Is SMAJ4731AE3/TR13 RoHS compliant?

    • Yes, SMAJ4731AE3/TR13 is RoHS compliant, making it suitable for use in environmentally conscious designs.

  8. What is the package type of SMAJ4731AE3/TR13?

    • SMAJ4731AE3/TR13 is typically available in a DO-214AC (SMA) package.

  9. Can SMAJ4731AE3/TR13 be used for ESD protection?

    • While SMAJ4731AE3/TR13 is primarily designed for transient voltage suppression, it can also provide some level of ESD protection due to its fast response time.

  10. What are the key specifications to consider when selecting SMAJ4731AE3/TR13 for a design?

    • When selecting SMAJ4731AE3/TR13, it's important to consider parameters such as breakdown voltage, peak pulse power, clamping voltage, response time, and operating temperature range to ensure it meets the requirements of the specific application.