Vishay Semiconductor Diodes Division
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MBR745-E3/45
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MBR745-E3/45

Introduction

The MBR745-E3/45 is a diode belonging to the category of Schottky Barrier Rectifiers. This entry provides an overview of its basic information, specifications, detailed pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.

Basic Information Overview

  • Category: Schottky Barrier Rectifiers
  • Use: The MBR745-E3/45 is commonly used in power supply applications, voltage clamping, and reverse polarity protection.
  • Characteristics: It exhibits low forward voltage drop, high-frequency operation capability, and fast switching speed.
  • Package: The diode is typically available in a TO-220AB package.
  • Essence: It serves as a rectifier for converting alternating current (AC) to direct current (DC) with minimal voltage loss.
  • Packaging/Quantity: The MBR745-E3/45 is usually packaged individually or in reels of varying quantities.

Specifications

  • Voltage Rating: 45V
  • Average Forward Current: 7.5A
  • Peak Non-Repetitive Surge Current: 150A
  • Operating Temperature Range: -65°C to +175°C
  • Storage Temperature Range: -65°C to +175°C

Detailed Pin Configuration

The MBR745-E3/45 typically has three pins: 1. Anode 2. Cathode 3. Thermal pad (connected to the metal tab of the TO-220AB package)

Functional Features

  • Low forward voltage drop
  • High-frequency operation capability
  • Fast switching speed
  • Excellent thermal performance due to the integrated thermal pad

Advantages and Disadvantages

Advantages

  • Low power dissipation
  • High efficiency
  • Compact design
  • Enhanced thermal management

Disadvantages

  • Higher cost compared to standard rectifiers
  • Sensitive to voltage spikes

Working Principles

The MBR745-E3/45 operates based on the Schottky barrier principle, where the metal-semiconductor junction allows for faster switching and lower forward voltage drop compared to conventional PN-junction diodes. When a forward bias is applied, the diode conducts current with minimal voltage loss.

Detailed Application Field Plans

The MBR745-E3/45 finds extensive use in various applications, including: - Power supplies - Voltage clamping circuits - Reverse polarity protection - DC-DC converters - Solar panel bypass diodes

Detailed and Complete Alternative Models

Some alternative models to the MBR745-E3/45 include: - MBR745-E3/51 - MBR745-E3/30 - MBR745-E3/15 - MBR745-E3/60

In summary, the MBR745-E3/45 is a versatile Schottky Barrier Rectifier with excellent characteristics, making it suitable for diverse power supply and voltage clamping applications.

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Texniki həllərdə MBR745-E3/45 tətbiqi ilə bağlı 10 ümumi sual və cavabı sadalayın

Sure, here are 10 common questions and answers related to the application of MBR745-E3/45 in technical solutions:

  1. Q: What is the maximum repetitive peak reverse voltage (VRRM) of MBR745-E3/45? A: The maximum repetitive peak reverse voltage (VRRM) of MBR745-E3/45 is 45V.

  2. Q: What is the forward voltage drop (VF) of MBR745-E3/45 at a specific current? A: The forward voltage drop (VF) of MBR745-E3/45 varies with current, typically around 0.55V at 7.5A.

  3. Q: Can MBR745-E3/45 be used in high-frequency switching power supplies? A: Yes, MBR745-E3/45 is suitable for use in high-frequency switching power supplies due to its fast switching characteristics.

  4. Q: What is the maximum average forward rectified current (IF(AV)) for MBR745-E3/45? A: The maximum average forward rectified current (IF(AV)) for MBR745-E3/45 is 7.5A.

  5. Q: Is MBR745-E3/45 suitable for battery charging applications? A: Yes, MBR745-E3/45 is commonly used in battery charging applications due to its low forward voltage drop and high efficiency.

  6. Q: What is the operating junction temperature range for MBR745-E3/45? A: The operating junction temperature range for MBR745-E3/45 is -65°C to +175°C.

  7. Q: Can MBR745-E3/45 be used in parallel to increase current handling capability? A: Yes, MBR745-E3/45 can be used in parallel to increase current handling capability in high-current applications.

  8. Q: Does MBR745-E3/45 have a low leakage current at high temperatures? A: Yes, MBR745-E3/45 exhibits low leakage current even at elevated temperatures, making it suitable for high-temperature environments.

  9. Q: What package type is MBR745-E3/45 available in? A: MBR745-E3/45 is available in the TO-220AB package, which provides good thermal performance and ease of mounting.

  10. Q: Are there any recommended application notes or reference designs for using MBR745-E3/45 in power supply circuits? A: Yes, the manufacturer provides application notes and reference designs for utilizing MBR745-E3/45 in various power supply circuits, offering guidance on layout and thermal management.

I hope these questions and answers are helpful for your technical solutions involving MBR745-E3/45. Let me know if you need further assistance!