AMPEREX - A441 – Vintage Germanium PNP Transistor, TO-92-4 Gold

The designation Amperex A441 primarily refers to a vintage electronic component, historically manufactured as a specialized PNP junction transistor or associated with early European valve/tube taxonomy.

Component Specifications

• Type: PNP Transistor / Semiconductor
• Voltage (VCEO): 12V
• Current Rating: 35mA
• Power Dissipation: 0.15W
• Gain-Bandwidth Product: 5 GHz @ 30mA
• Package Style: TO-72-4 (Gold/Metal can)

Historical Context

• Manufacturer: Amperex Electronic Corporation (a subsidiary or affiliate of Philips, widely known for high-grade vacuum tubes and specialized RF/microwave semiconductors).
• Application: For the Semiconductor Circuit: High-frequency, low-noise RF PNP transistors housed in TO-72 configurations (such as select vintage 2N-series or BF-series RF transistors) can match the 12V operational window depending on your exact biasing network. Utilized in legacy high-frequency (HF), common-emitter, and specialized telecommunications or instrumentation amplifier circuits.

Note: RF Transistors. Communication: UHF/VHF amplifiers; Log amplifiers; CATV/MATV amplifiers; Microwave amplifiers. Instrumentation: Wideband preamplifiers; Oscilloscopes; Spectrum analyzers; Frequency counters.

New Old Stock - Rare

Made in USA

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