Transistor BF167 NPN, Video/RF TO-72

Transistor BF167 NPN, Video/RF TO-72

Transistor BF167 NPN, Video/RF TO-72

Transistor BF167 NPN, Video/RF TO-72

Transistor BF167 NPN, Video/RF TO-72

Transistors

Reference: TRBF167

Part.No: BF167

€1.20

In Stock

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The BF167 is an NPN Bipolar Junction Transistor (BJT) in a shielded TO-72 package, purpose-built for video intermediate frequency (IF) and automatic gain control (AGC) applications in vintage television receivers and RF circuits.

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Description
Product Details

BF167 Video/RF Transistor - AGC-Ready for Classic TV Circuits

The BF167 is a specialized NPN transistor engineered for intermediate frequency amplification and automatic gain control in television receivers. Its voltage-controlled gain makes it ideal for maintaining stable image contrast across varying signal strengths, and its shielded TO-72 package minimizes RF interference in critical signal paths.

Functions & Applications

Voltage-Controlled Gain: Optimized for AGC circuits, automatically adjusting amplification based on signal strength.
Shielded TO-72 Package: Built-in 4th lead for grounding the metal case, reducing RF interference and crosstalk.
Video/IF Optimized: Tuned for intermediate frequency and video signal paths in classic television designs.
Stable Operation: Reliable performance across temperature and bias variations in AGC feedback loops.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-72
Collector-Emitter Voltage (Vceo)	30V
Max Collector Current (Ic)	50mA
Power Dissipation (Pd)	300mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the 4th lead (metal case ground) used for in the BF167?
A: The 4th lead is connected to the metal shield case and should be grounded to reduce RF interference and improve shielding in high-frequency circuits like TV IF amplifiers.

Q: Can the BF167 be used outside of television AGC circuits?
A: Yes, the BF167 is suitable for any RF or IF amplifier application requiring voltage-controlled gain, though it is optimized specifically for TV intermediate frequency work. For general small-signal amplification, a BC547 or BC337 is typically preferred.

Notes

Vintage TV service part, well-suited for restoration and repair of classic television receivers. The BF167 remains popular among technicians restoring 1960s–1980s TV sets.

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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