Transistor BF200 NPN, VHF TO-72

Transistor BF200 NPN, VHF TO-72

Transistor BF200 NPN, VHF TO-72

Transistor BF200 NPN, VHF TO-72

Transistor BF200 NPN, VHF TO-72

Transistors

Reference: TRBF200

Part.No: BF200

€1.40

In Stock

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The BF200 is an NPN silicon transistor in a shielded TO-72 metal-can package, specifically designed for VHF (Very High Frequency) applications. Ideal for RF amplifiers, TV tuners, and antenna front-end circuits where low noise and high frequency stability are critical.

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Description
Product Details

BF200 VHF Transistor - High-Frequency RF Amplifier & Tuner Applications

The BF200 is a purpose-built NPN transistor for VHF band reception and RF amplification, widely trusted in vintage and modern TV tuner designs. Its shielded metal-can construction and grounded shield lead minimize parasitic oscillation and noise, making it essential for clear, stable signal processing in antenna preamplifiers and channel selectors.

Functions & Applications

Optimized for VHF Frequencies: Engineered for stable amplification across the 30–300 MHz band.
Shielded Metal-Can Package (TO-72): Built-in electromagnetic shielding with a separate grounded lead reduces noise and parasitic coupling.
Low-Noise Front-End: Ideal for weak-signal reception in antenna amplifiers and RF preamplifiers.
Vintage & Modern Compatible: Proven reliability in classic TV tuner designs and contemporary RF circuits.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-72
Frequency Range	VHF (30–300 MHz)
Package Type	TO-72 (Metal-Can, Shielded)
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Why does the BF200 have a fourth lead on the TO-72 package?
A: The fourth lead is a shielding electrode that must always be grounded. This minimizes parasitic capacitance and electromagnetic interference, essential for stable VHF operation.

Q: Can the BF200 be used in modern RF circuits, or is it only for vintage equipment?
A: The BF200 remains suitable for modern low-noise VHF preamplifiers and RF front-ends. Its performance at VHF frequencies is timeless; however, for ultrahigh frequencies (UHF and above), newer parts may offer better gain and lower noise figure.

Notes

VHF-specific design with shielded metal-can package. The shield lead (pin 4) must always be grounded for proper operation. Solder quickly to avoid thermal stress on the delicate internal RF geometry.

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-72

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