Transistor BF441 PNP, 0.5A TO-92

Transistor BF441 PNP, 0.5A TO-92

Transistors

Reference: TRBF441

Part.No: BF441

€1.00

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The BF441 is a PNP Bipolar Junction Transistor (BJT) in a TO-92 package, specifically designed for RF and high-frequency applications. With low internal capacitance and excellent frequency stability, it excels in oscillators, amplifiers, and telecommunications circuits.

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Description
Product Details

BF441 RF Transistor - High-Frequency Amplification & Oscillator Design

The BF441 is a PNP RF transistor engineered for stable, high-frequency amplification in telecommunications and radio circuits. Its low internal capacitance preserves signal integrity across the RF spectrum, making it ideal for oscillator and amplifier stages where frequency stability is paramount.

Functions & Applications

Low Internal Capacitance: Prevents RF signal filtering, ensuring clean high-frequency amplification.
RF Optimized: Purpose-built for oscillators, mixers and RF amplifier stages in radio and telecommunications.
Stable Frequency Response: Excellent linearity and minimal phase distortion across the operating bandwidth.
TO-92 Compatibility: Standard through-hole package, easy to integrate into vintage and modern RF designs.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	50V
Max Collector Current (Ic)	500mA
Power Dissipation (Pd)	800mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What makes BF441 different from standard small-signal transistors like BC547?
A: The BF441 has significantly lower internal capacitance, which is critical for RF applications. This prevents unwanted filtering of high-frequency signals and maintains signal integrity in oscillators and RF amplifier stages.

Q: Can I use BF441 as a direct replacement for vintage radio receivers?
A: Yes, the BF441 is commonly used to restore and repair vintage radio receivers and telecommunications equipment. Its RF characteristics closely match original specifications in many classic designs.

Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.

Transistor Type: BJT (Bipolar Junction Transistor)
Transistor Polarity / Channel: PNP
Transistor Case Style: TO-92

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