STMicroelectronics
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BD140-16
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BD140-16

Product Overview

BD140-16 is a silicon PNP epitaxial planar transistor primarily used in electronic circuits for amplification and switching purposes. This transistor belongs to the category of discrete semiconductor devices and is commonly utilized in audio amplifiers, voltage regulators, and power management applications. The BD140-16 is known for its high current capability, low saturation voltage, and reliable performance. It is typically available in TO-126 packaging with varying quantities per package.

Specifications

  • Type: PNP
  • Material: Silicon
  • Package Type: TO-126
  • Maximum Collector-Emitter Voltage (VCEO): -80V
  • Maximum Collector Current (IC): -1.5A
  • Power Dissipation (PD): 12.5W
  • Transition Frequency (FT): 30MHz
  • Operating Temperature Range: -65°C to 150°C

Detailed Pin Configuration

The BD140-16 transistor has three pins: the emitter (E), base (B), and collector (C). In the TO-126 package, the pin configuration is as follows: - Emitter (E) - Pin 1 - Base (B) - Pin 2 - Collector (C) - Pin 3

Functional Features

The BD140-16 transistor offers the following functional features: - High current gain - Low saturation voltage - Fast switching speed - Good linearity in amplification

Advantages and Disadvantages

Advantages

  • High current capability
  • Low saturation voltage
  • Reliable performance
  • Wide operating temperature range

Disadvantages

  • Moderate transition frequency
  • Limited power dissipation capability

Working Principles

The BD140-16 operates based on the principles of PNP bipolar junction transistors. When a small current flows into the base terminal, it controls a much larger current between the collector and emitter terminals. This allows the transistor to amplify or switch electronic signals effectively.

Detailed Application Field Plans

The BD140-16 transistor finds extensive use in various electronic applications, including: - Audio amplifier circuits - Voltage regulator circuits - Power management systems - Signal amplification and switching

Detailed and Complete Alternative Models

Some alternative models to BD140-16 include: - BD139-16 - 2N3906 - BC557

In summary, the BD140-16 transistor is a versatile component with applications in audio amplifiers, voltage regulators, and power management systems. Its high current capability, low saturation voltage, and reliable performance make it a popular choice in electronic circuit design.

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רשום 10 שאלות ותשובות נפוצות הקשורות ליישום של BD140-16 בפתרונות טכניים

  1. What is the BD140-16 transistor used for?

    • The BD140-16 is a PNP power transistor commonly used in audio amplifiers, voltage regulators, and other electronic circuits requiring high current and low frequency operation.

  2. What are the key specifications of the BD140-16 transistor?

    • The BD140-16 has a maximum collector current of 1.5A, a maximum collector-emitter voltage of 80V, and a maximum power dissipation of 12.5W.

  3. How do I connect the BD140-16 in a typical audio amplifier circuit?

    • In an audio amplifier circuit, the BD140-16 can be connected as a driver or output stage, with appropriate biasing and coupling components to achieve the desired amplification.

  4. What are the common applications of the BD140-16 in voltage regulators?

    • The BD140-16 can be used in linear voltage regulator circuits to provide stable output voltage regulation, especially in low-frequency and medium-current applications.

  5. What are the thermal considerations when using the BD140-16 in high-power applications?

    • In high-power applications, proper heat sinking is essential to ensure that the BD140-16 operates within its specified temperature range and does not exceed its maximum power dissipation.

  6. Can the BD140-16 be used in switching applications?

    • While the BD140-16 is primarily designed for linear applications, it can be used in low-frequency switching applications with appropriate drive and protection circuitry.

  7. What are the typical operating conditions for the BD140-16?

    • The BD140-16 is typically operated at a collector current of around 1A, a collector-emitter voltage of 40-60V, and within a temperature range of -65°C to 150°C.

  8. How do I test the BD140-16 transistor for proper functionality?

    • The BD140-16 can be tested using a multimeter to measure its hFE (DC current gain), continuity between its terminals, and its ability to handle the expected current and voltage levels.

  9. Are there any common failure modes or issues associated with the BD140-16?

    • Common failure modes include thermal runaway due to inadequate heat sinking, overcurrent leading to device breakdown, and voltage spikes causing damage to the transistor.

  10. Where can I find detailed application notes and reference designs for the BD140-16?

    • Detailed application notes and reference designs for the BD140-16 can be found in the datasheets provided by semiconductor manufacturers, as well as in electronics engineering textbooks and online resources.