Transistor BF240 NPN, RF TO-92

Transistor BF240 NPN, RF TO-92

Transistors

Reference: TRBF240

Part.No: BF240

€0.60

In Stock

Immediate Dispatch

The BF240 is a high-frequency NPN BJT transistor in a TO-92 package, optimized for VHF/FM applications and RF circuits. A trusted choice for hobbyist FM transmitters, RF preamplifiers and local oscillators operating at 100 MHz and beyond.

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Description
Product Details

BF240 RF Transistor – High-Frequency Performance for FM & VHF Circuits

The BF240 is a high-frequency NPN transistor engineered for RF and VHF applications. Renowned among hobbyists and engineers for its excellent gain stability at frequencies exceeding 100 MHz, it is the go-to component for FM transmitter circuits, RF preamplifiers and oscillator stages.

Functions & Applications

High RF Gain: Maintains excellent amplification even at VHF/FM frequencies (100 MHz+).
Optimized for FM Circuits: Purpose-built for FM transmitters, oscillators and RF preamplifiers.
Standard TO-92 Package: Compact through-hole design, breadboard-friendly and easy to integrate.
Stable Frequency Response: Low noise and predictable gain characteristics across the FM band.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	20V
Max Collector Current (Ic)	50mA
Power Dissipation (Pd)	250mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can I use the BF240 to build a small FM transmitter (FM bug)?
A: Yes, the BF240 is one of the most recommended components for DIY FM transmitter circuits. Its high RF gain and stable characteristics make it ideal for this application.

Q: What is the upper frequency limit of the BF240?
A: The BF240 performs excellently at VHF frequencies, typically up to 200 MHz and beyond, making it well-suited for FM band (88–108 MHz) and related RF applications.

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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