Transistor BF255 NPN, RF/FM TO-92

Transistor BF255 NPN, RF/FM TO-92

Transistors

Reference: TRBF255

Part.No: BF255

€1.00

In Stock

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The BF255 is a high-frequency NPN BJT transistor in a TO-92 package, specifically optimized for RF and FM applications. Designed for low-noise amplification and mixing around 100MHz, it is ideal for FM front-end circuits, oscillators, and amateur radio projects.

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Description
Product Details

BF255 RF Transistor - FM Front-End & Mixer Applications

The BF255 is a specialized NPN transistor engineered for radio frequency applications in the VHF band. With excellent low-capacitance characteristics and superior noise performance, it has been the standard choice for FM preamplifiers, oscillators, and mixer circuits in professional and hobbyist RF design for decades.

Functions & Applications

Low Noise, High Gain: Optimized for VHF/RF amplification with minimal signal degradation, ideal for sensitive FM receiver front-ends.
Low Capacitance: Minimizes parasitic effects, allowing clean amplification of high-frequency signals around 100MHz.
RF Mixer & Oscillator Ready: Excellent linearity and stability for frequency conversion and signal generation in FM circuits.
Through-Hole TO-92: Standard leaded package for easy prototyping, breadboarding, and vintage radio restoration projects.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	30V
Transition Frequency (fT)	~600MHz
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the BF255 be used to build a simple FM transmitter?
A: Yes, the BF255 is an excellent choice for hobbyist FM transmitter and VCO circuits. Its low noise and stable gain make it ideal for small-power FM broadcasting projects.

Q: What is a good complementary circuit topology for the BF255?
A: The BF255 is often used in cascode RF amplifier stages paired with output buffers. For a PNP complement, consider the BF256 or similar high-frequency PNP transistor.

Notes

Vintage RF classic; still valued by radio hobbyists and amateur radio enthusiasts for FM circuits and vintage receiver restoration.

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: NPN
Transistor Case Style: TO-92

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