Transistor BF115 NPN, RF Silicon TO-72

Transistor BF115 NPN, RF Silicon TO-72

Transistor BF115 NPN, RF Silicon TO-72

Transistor BF115 NPN, RF Silicon TO-72

Transistor BF115 NPN, RF Silicon TO-72

Transistors

Reference: TRBF115

Part.No: BF115

€1.00

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The BF115 is a classic NPN silicon transistor in a TO-72 package with 4 leads, purpose-built for RF and IF amplification in vintage radio receivers. Superior thermal stability and built-in shielding make it ideal for restoration and retro radio projects.

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Description
Product Details

BF115 NPN RF Transistor – Silicon Shielded Design for Vintage Radio

The BF115 is a vintage NPN silicon transistor, engineered for RF and IF stages in AM/FM receivers. Its 4-lead TO-72 package includes a dedicated shield lead to suppress radio interference, and silicon construction delivers the thermal stability that older germanium designs lacked.

Functions & Applications

4-Lead Shielding: Built-in shield lead minimizes RF interference in sensitive tuner circuits.
Silicon Construction: Superior thermal stability and immunity to the tin whisker problem of germanium transistors.
RF/IF Optimized: High-frequency performance tailored for radio receiver front-ends and mixer stages.
Vintage-Grade Reliability: Long production history (1950s–1970s) ensures proven performance in classic radio restoration.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-72
Package Style	TO-72, 4-lead with shield
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the shield lead used for in the BF115?
A: The 4th lead is a shield (typically connected to ground or the receiver chassis) to minimize RF and IF interference in sensitive tuning stages of vintage radios.

Q: Can I substitute a BF115 with a modern transistor?
A: Possible in many circuits, but RF performance and impedance matching will differ. For authentic restoration, the BF115 is recommended.

Notes

Vintage NOS (New Old Stock) part. Production ended circa 1970s. Widely used in classic AM/FM receiver restoration projects.

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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