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BDW74B-S

BDW74B-S

Product Overview

Belongs to: Semiconductor Devices
Category: Power Transistor
Use: Amplification and Switching
Characteristics: High power dissipation, high current capability, low saturation voltage
Package: TO-220AB
Essence: NPN Epitaxial Silicon Transistor
Packaging/Quantity: Bulk packaging, 50 pieces per tube

Specifications

  • Collector-Emitter Voltage (VCEO): 45V
  • Collector-Base Voltage (VCBO): 45V
  • Emitter-Base Voltage (VEBO): 5V
  • Collector Current (IC): 10A
  • Power Dissipation (PD): 65W
  • Transition Frequency (FT): 30MHz

Detailed Pin Configuration

  1. Base (B)
  2. Collector (C)
  3. Emitter (E)

Functional Features

  • High current gain
  • Low noise
  • Fast switching speed

Advantages

  • High power dissipation capability
  • Suitable for audio amplification and power switching applications
  • Low saturation voltage

Disadvantages

  • Sensitive to overvoltage conditions
  • Requires careful handling due to its sensitivity to static electricity

Working Principles

The BDW74B-S operates as a bipolar junction transistor (BJT) in the NPN configuration. When a small current flows into the base terminal, it controls a larger current between the collector and emitter terminals, allowing for amplification or switching of electrical signals.

Detailed Application Field Plans

The BDW74B-S is commonly used in audio amplifier circuits, power supply units, motor control systems, and general-purpose switching applications. Its high current capability and low saturation voltage make it suitable for various power-related tasks.

Detailed and Complete Alternative Models

  • BDW74B
  • BDW74C
  • BDW74D
  • BDW74E

These alternative models offer similar characteristics and performance, providing flexibility in design and application.


This content provides a comprehensive overview of the BDW74B-S semiconductor device, covering its product details, specifications, features, and application fields within the specified word count.

Liệt kê 10 câu hỏi và câu trả lời thường gặp liên quan đến ứng dụng BDW74B-S trong giải pháp kỹ thuật

Sure, here are 10 common questions and answers related to the application of BDW74B-S in technical solutions:

  1. Q: What is the maximum collector current of BDW74B-S? A: The maximum collector current of BDW74B-S is 12A.

  2. Q: What is the maximum collector-emitter voltage of BDW74B-S? A: The maximum collector-emitter voltage of BDW74B-S is 100V.

  3. Q: What is the typical DC current gain (hFE) of BDW74B-S? A: The typical DC current gain (hFE) of BDW74B-S is 40 to 160.

  4. Q: What is the power dissipation of BDW74B-S? A: The power dissipation of BDW74B-S is 65W.

  5. Q: Is BDW74B-S suitable for high-power switching applications? A: Yes, BDW74B-S is suitable for high-power switching applications due to its high collector current and power dissipation capabilities.

  6. Q: Can BDW74B-S be used in audio amplifier circuits? A: Yes, BDW74B-S can be used in audio amplifier circuits due to its high current gain and power handling capabilities.

  7. Q: What is the thermal resistance of BDW74B-S? A: The thermal resistance of BDW74B-S is typically 1.67°C/W.

  8. Q: Is BDW74B-S suitable for automotive applications? A: Yes, BDW74B-S is suitable for automotive applications due to its high current and voltage ratings.

  9. Q: Can BDW74B-S be used in linear voltage regulator circuits? A: Yes, BDW74B-S can be used in linear voltage regulator circuits due to its high power dissipation capability.

  10. Q: What are the typical applications of BDW74B-S? A: Typical applications of BDW74B-S include power management, motor control, audio amplification, and general-purpose switching circuits.