NXP USA Inc.
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BF998,235
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BF998,235

Product Overview

Category

BF998,235 belongs to the category of field-effect transistors (FETs).

Use

It is commonly used as an amplifier in electronic circuits.

Characteristics

  • Low noise figure
  • High gain
  • Wide frequency range

Package

BF998,235 is typically available in a SOT143 package.

Essence

The essence of BF998,235 lies in its high performance and low noise characteristics.

Packaging/Quantity

It is usually packaged in reels with a quantity of 3000 units per reel.

Specifications

  • Drain-Source Voltage (VDS): 20 V
  • Gate-Source Voltage (VGS): 20 V
  • Drain Current (ID): 30 mA
  • Power Dissipation (Ptot): 225 mW
  • Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

  1. Source (S)
  2. Gate (G)
  3. Drain (D)

Functional Features

  • Low noise figure makes it suitable for low-noise amplification applications.
  • High gain allows for signal amplification without significant distortion.
  • Wide frequency range enables its use in various electronic circuits.

Advantages

  • Low noise figure enhances signal clarity.
  • High gain provides effective signal amplification.
  • Wide frequency range offers versatility in circuit design.

Disadvantages

  • Limited voltage and current handling capabilities compared to some other FETs.
  • Sensitive to electrostatic discharge (ESD) due to its high input impedance.

Working Principles

BF998,235 operates based on the principle of field-effect modulation of the conductivity of a semiconductor channel.

Detailed Application Field Plans

Radio Frequency (RF) Amplification

BF998,235 can be utilized in RF amplifiers for wireless communication systems, providing low noise and high gain characteristics.

Audio Amplification

In audio circuits, BF998,235 can be employed to amplify low-level signals with minimal added noise.

Instrumentation

Its low noise figure makes it suitable for use in sensitive instrumentation applications where signal fidelity is crucial.

Detailed and Complete Alternative Models

  • BF960
  • BF862
  • BF545

In conclusion, BF998,235 is a versatile field-effect transistor with low noise, high gain, and wide frequency range, making it suitable for various amplification applications across different industries.

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Seznam 10 běžných otázek a odpovědí souvisejících s aplikací BF998,235 v technických řešeních

  1. What is the BF998,235 transistor used for?

    • The BF998,235 transistor is commonly used in high-frequency applications such as RF amplifiers and mixers.

  2. What are the key features of the BF998,235 transistor?

    • The BF998,235 transistor features low noise, high gain, and excellent high-frequency performance, making it suitable for use in various technical solutions.

  3. What are the typical operating conditions for the BF998,235 transistor?

    • The BF998,235 transistor typically operates at a voltage range of 15V to 20V and can handle currents up to a few milliamps.

  4. Can the BF998,235 transistor be used in radio frequency (RF) applications?

    • Yes, the BF998,235 transistor is well-suited for RF applications due to its high-frequency performance and low noise characteristics.

  5. What are some common technical solutions that utilize the BF998,235 transistor?

    • The BF998,235 transistor is often used in radio frequency amplifiers, oscillators, signal mixers, and other high-frequency circuits.

  6. Does the BF998,235 transistor require any special handling or mounting considerations?

    • It is recommended to follow standard ESD precautions and proper PCB layout techniques to ensure optimal performance of the BF998,235 transistor.

  7. What are the thermal considerations for the BF998,235 transistor?

    • The BF998,235 transistor may require proper heat sinking or thermal management in high-power applications to prevent overheating.

  8. Are there any specific matching or biasing requirements for using the BF998,235 transistor in technical solutions?

    • Depending on the application, proper biasing and matching networks may be required to optimize the performance of the BF998,235 transistor.

  9. Can the BF998,235 transistor be used in low-noise amplifier (LNA) designs?

    • Yes, the low noise characteristics of the BF998,235 transistor make it suitable for use in LNA designs for sensitive receiver systems.

  10. Where can I find detailed application notes or reference designs for using the BF998,235 transistor in technical solutions?

    • Detailed application notes and reference designs for the BF998,235 transistor can often be found in the datasheets provided by semiconductor manufacturers or through online technical resources.