Transistor AF280 PNP, Germanium RF TO-72

Transistor AF280 PNP, Germanium RF TO-72

Transistor AF280 PNP, Germanium RF TO-72

Transistor AF280 PNP, Germanium RF TO-72

Transistor AF280 PNP, Germanium RF TO-72

Transistors

Reference: TRAF280

Part.No: AF280

€1.59

In Stock

Immediate Dispatch

The AF280 is a vintage PNP Germanium transistor in a TO-72 (4-lead can) package, purpose-built for high-frequency RF and IF amplification. An authentic choice for restoring and servicing classic telecommunication and radio receiver equipment.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

AF280 Germanium Transistor – Classic RF Amplifier for Vintage Radio Repair

The AF280 is a legendary PNP germanium transistor engineered for RF and IF amplification in vintage radio and telecommunications systems. Its 4-lead TO-72 can package with integral shielding prevents oscillations and provides the authentic performance demanded by restoration enthusiasts and professional technicians.

Functions & Applications

4-Lead Shielded Can Design: Integral metal shielding prevents RF oscillations in sensitive IF/RF stages.
Germanium Construction: Authentic vintage characteristic, superior performance in classic radio receiver circuits.
Low-Noise Performance: Ideal for weak-signal RF preamplifiers and receiver front-ends.
NOS Stock: Genuine new old stock parts with original specifications unchanged.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-72
Mounting Type	Through-Hole (THT), 4-Lead Can
Semiconductor Material	Germanium

Frequently Asked Questions

Q: How do I identify the ground (shield) pin on the AF280?
A: The shield/ground connection is typically spaced slightly further from the other three leads, or aligned with the metal tab at the base of the cylindrical can. Check the original schematic or application note for the specific radio model.

Q: Is the AF280 a direct replacement for other vintage RF germanium transistors?
A: The AF280 has specific characteristics optimized for its original application. Always consult the service manual of the equipment being repaired to confirm electrical compatibility and pinout before substitution.

Notes

Vintage NOS (new old stock) germanium part. Genuine AF280 transistors are highly sought for authentic vintage radio restoration. Pin identification and electrical characteristics vary by manufacturer; original service documentation is essential. Not recommended for new designs—only suitable for period-correct repair and restoration.

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: PNP
Transistor Case Style: TO-72

16 other products in the same category:

Power Transistor AD149 PNP, TO-3

Transistors

Power Transistor AD149 PNP, TO-3

Reference:

TRAD149

The AD149 is a classic PNP Germanium Power Transistor in a TO-3 package. Designed for high-current amplification and audio power amplifier output stages where reliability and thermal management are critical.

In Stock

Transistor 2SC1740 NPN, 0.15A TO-92

Transistors

Transistor 2SC1740 NPN, 0.15A TO-92

Reference:

TR2SC1740

The 2SC1740 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Widely used for small-signal amplification and low-power switching in audio, logic circuits and DIY electronics projects.

In Stock

Power Transistor 2SC1173 NPN, 3A TO-220

Transistors

Power Transistor 2SC1173 NPN, 3A TO-220

Reference:

TR2SC1173

The 2SC1173 is a reliable NPN power transistor in a TO-220 package, optimized for low-frequency audio amplification and relay driving applications. Its robust design and easy heatsink mounting make it ideal for continuous-duty power stages.

Last items in stock

Transistor 2SC496 NPN, 0.8A TO-92

Transistors

Transistor 2SC496 NPN, 0.8A TO-92

Reference:

TR2SC496

The 2SC496 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Designed for reliable switching and amplification in amateur radio, audio circuits, and general-purpose low-to-medium power applications.

Last items in stock

Transistor AC150 PNP Germanium, TO-1

Transistors

Transistor AC150 PNP Germanium, TO-1

Reference:

TRAC150

The AC150 is a classic PNP Germanium Bipolar Junction Transistor (BJT) in a TO-1 metal can package. Prized for low-noise audio preamplification and vintage radio restoration projects.

In Stock

Transistor 2SA509

Transistors

Transistor 2SA509

Reference:

TR2SA509

Το 2SA509 είναι ένα PNP Bipolar Junction Transistor (BJT) πυριτίου της Toshiba, σε θήκη TO-92. Κατάλληλο για ενίσχυση ασθενών σημάτων και switching σε κυκλώματα ήχου και γενικής χρήσης PNP.

In Stock

Transistor AC127K NPN Germanium, 0.5A TO-1

Transistors

Transistor AC127K NPN Germanium, 0.5A TO-1

Reference:

TRAC127K

The AC127K is a germanium NPN transistor in a TO-1 heatsink-block package, designed for audio amplifier stages and vintage electronics repair where extra thermal stability is needed.

In Stock

Transistor BD202 PNP, 45V, 8A, 60W, TO-220

Transistors

Power Transistor BD202 PNP, 8A TO-220

Reference:

TRBD202

The BD202 is a PNP Bipolar Junction Transistor (BJT) in a TO-220 package, rated for 8A collector current and 60W dissipation. Suited for power amplification, motor driving and switching applications requiring a robust PNP counterpart.

Last items in stock

Transistor BC202 PNP, 0.1A TO-92

Transistors

Transistor BC202 PNP, 0.1A TO-92

Reference:

TRBC202

The BC202 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a TO-92 package. Silicon construction ensures stable performance across temperature ranges, making it ideal for audio pre-amplification and low-current switching applications.

In Stock

Power Transistor BD830 PNP, TO-220

Transistors

Power Transistor BD830 PNP, TO-220

Reference:

TRBD830

The BD830 is a PNP Power Bipolar Junction Transistor (BJT) in a TO-220 package. Designed as the complementary pair to the BD829, it is ideal for push-pull amplifiers, audio output stages, and medium-power switching applications.

In Stock

Transistor AC172 PNP, Germanium TO-1

Transistors

Transistor AC172 PNP, Germanium TO-1

Reference:

TRAC172

The AC172 is a PNP Germanium BJT in a TO-1 metal can package. A classic vintage component prized for restoring period audio equipment and vintage electronic circuits while preserving authentic tonal characteristics.

Last items in stock

Transistor AF109 PNP, Germanium RF TO-72

Transistor AF109 PNP, Germanium RF TO-72 2

Transistors

Transistor AF109 PNP, Germanium RF TO-72

Reference:

TRAF109

The AF109 is a PNP Germanium BJT in a TO-72 package with 4 leads including shield. Purpose-built for RF and high-frequency amplification stages with excellent low-noise characteristics, ideal for restoring vintage radio receivers and RF circuits.

In Stock

Power Transistor BU2508A NPN, 8A TO-247

Transistors

Power Transistor BU2508A NPN, 8A TO-247

Reference:

TRBU2508A

The BU2508A is a high-voltage NPN power transistor in a TO-247 package, purpose-built as a Line Output Transistor (LOPT) for CRT monitor and television deflection circuits. It drives the high-voltage flyback transformer in horizontal scanning stages.

Last items in stock

Transistor 2SC1815 NPN, 0.15A TO-92

Transistors

Transistor 2SC1815 NPN, 0.15A TO-92

Reference:

TR2SC1815

The 2SC1815 is a classic NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Renowned for audio preamplification and general-purpose switching, it remains an industry standard for analog signal processing and low-power applications.

In Stock

Transistor BC441 NPN, 60V, TO-39

Transistors

Power Transistor BC441 NPN, 2A TO-39

Reference:

TRBC441

The BC441 is a medium-power NPN Bipolar Junction Transistor (BJT) in a metal TO-39 package. Designed for driver stages, audio output and general-purpose switching applications requiring higher current and voltage margins than small-signal parts.

Last items in stock

Transistor 2N697

Transistors

Transistor 2N697 NPN, 0.5A TO-39

Reference:

TR2N697

The 2N697 is a classic NPN medium-power silicon switching transistor in a hermetic TO-39 metal can package. Originally a JAN military-qualified part, it is still used today in general-purpose switching, driver and small-signal amplifier circuits.

In Stock

Product added to wishlist

Product added to compare.