Transistor BF182 NPN, UHF RF Mixer TO-72

Transistor BF182 NPN, UHF RF Mixer TO-72

Transistor BF182 NPN, UHF RF Mixer TO-72

Transistor BF182 NPN, UHF RF Mixer TO-72

Transistor BF182 NPN, UHF RF Mixer TO-72

Transistors

Reference: TRBF182

Part.No: BF182

€1.40

In Stock

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The BF182 is a high-frequency NPN Bipolar Junction Transistor (BJT) in a shielded TO-72 package, optimized for UHF RF mixing and oscillator applications. Its integrated Faraday shield minimizes parasitic coupling, making it ideal for precision frequency conversion stages in radio receivers and communications equipment.

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Description
Product Details

BF182 UHF RF Mixer Transistor – Shielded TO-72 for Precision Frequency Conversion

The BF182 is a specialized NPN transistor designed for UHF RF mixing applications. Its shielded TO-72 package with integral Faraday cage on the fourth lead provides excellent isolation and minimal parasitic effects, making it the preferred choice for frequency mixers in radio receivers, communications systems, and precision RF instrumentation.

Functions & Applications

Integrated RF Shielding: Fourth TO-72 lead bonded to the can provides a built-in Faraday shield, reducing parasitic coupling and crosstalk.
UHF Optimized: Engineered specifically for high-frequency mixing and oscillator circuits in the UHF band.
Stable Mixer Performance: Low noise and predictable gain characteristics across the UHF spectrum.
Compact TO-72 Package: Direct replacement in classic radio and communications designs; easy to retrofit or prototype.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-72
Transistor Type	NPN BJT
Frequency Band	UHF (up to ~1 GHz)
Package	TO-72 (4-lead, shielded)
Mounting Type	Through-Hole (THT), Vintage

Frequently Asked Questions

Q: Can the BF182 replace the BF180 or BF183?
A: The BF180, BF182, and BF183 are designed for similar UHF mixer applications and often have similar performance characteristics. However, always consult the original schematic and datasheet for the exact substitution rules—gain, noise figure, and frequency response may differ slightly.

Q: Why does the BF182 have a fourth lead?
A: The fourth lead in the TO-72 package is connected internally to the transistor can, forming a Faraday shield. This reduces parasitic capacitance and RF coupling, essential for stable mixer operation at high frequencies. It should typically be grounded or left floating—consult the circuit design.

Notes

Vintage RF component; part of the classic UHF receiver architecture. Well-established part number with consistent availability from multiple sources. Shielded package requires proper grounding in PCB layouts.

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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