Transistor AF115 PNP, Germanium TO-7

Transistor AF115 PNP, Germanium TO-7

Transistors

Reference: TRAF115

Part.No: AF115

€1.40

In Stock

Immediate Dispatch

The AF115 is a vintage PNP Germanium BJT in a shielded TO-7 metal can package. Optimized for RF mixing and oscillation stages in classic radio receivers and period amateur radio equipment.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

AF115 Germanium PNP Transistor – Vintage RF Mixer & Oscillator

The AF115 is a shielded germanium PNP transistor widely used in the front-end RF stages of period multiband receivers and classic amateur radio equipment. Its 4-lead metal can design and internal shielding make it ideal for low-noise mixing and oscillation applications where parasitic feedback must be minimized.

Functions & Applications

Shielded Metal Can Design: Four-lead TO-7 package with integral shielding prevents parasitic coupling and feedback in RF circuits.
Germanium Construction: Lower forward voltage drop (~0.2V) compared to silicon, ideal for vintage radio and low-supply-voltage designs.
Direct Replacement: Compatible with AF11x series (AF114, AF116, AF118) in classic receiver applications.
RF-Optimized: Low noise and stable characteristics for mixer and local oscillator stages.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-7
Transistor Type	PNP Germanium BJT
Package	TO-7 (Shielded 4-lead Metal Can)
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: What is the difference between AF115 and AF114/AF116?
A: All three (AF114, AF115, AF116) are PNP germanium transistors in the same TO-7 package, designed for RF applications. They are generally interchangeable in most classic receiver designs, though AF115 is the most commonly specified.

Q: Why does my AF115 sometimes fail in old radio equipment?
A: Germanium transistors are susceptible to tin whisker growth and degradation over decades. A fresh replacement AF115 will restore performance in vintage multiband receivers.

Notes

Vintage germanium transistor; subject to tin whisker formation and degradation over time. Ideal for restoration of classic radio equipment. Handle with standard ESD precautions.

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-7

16 other products in the same category:

Transistor BD237 NPN, 80V, 2A, 25W, TO-126

Transistors

Power Transistor BD237 NPN, 2A TO-126

Reference:

TRBD237

The BD237 is an NPN power BJT in a TO-126 package, rated for 80V and 2A. Commonly used in audio amplifier output stages, power switching and driver circuits requiring moderate current handling.

In Stock

Transistor BF180 NPN, UHF TO-72

Transistor BF180 NPN, UHF TO-72 2

Transistors

Transistor BF180 NPN, UHF TO-72

Reference:

TRBF180

The BF180 is a high-frequency NPN silicon transistor in a TO-72 package with integrated shield can. Optimized for UHF front-end amplification, TV tuner mixers, and low-noise preamplifiers on channels 21–69.

In Stock

Transistor BC160 PNP 60V 1A 3.7W 50MHz, TO-39

Transistors

Transistor BC160 PNP, 1A TO-39

Reference:

TRBC160

The BC160 is a PNP Bipolar Junction Transistor (BJT) in a metal TO-39 package, rated for 60V and 1A. Suited for medium-power switching and amplification stages requiring a robust metal-can package.

In Stock

Transistor BF240 NPN, RF TO-92

Transistors

Transistor BF240 NPN, RF TO-92

Reference:

TRBF240

The BF240 is a high-frequency NPN BJT transistor in a TO-92 package, optimized for VHF/FM applications and RF circuits. A trusted choice for hobbyist FM transmitters, RF preamplifiers and local oscillators operating at 100 MHz and beyond.

In Stock

Power Transistor BD436 PNP, 4A TO-126

Transistors

Power Transistor BD436 PNP, 4A TO-126

Reference:

TRBD436

The BD436 is a medium-power PNP Bipolar Junction Transistor (BJT) in a TO-126 package. It forms the complementary pair to the BD435 (NPN) and is widely used in audio output stages, push-pull driver circuits, and DC power supply applications.

Last items in stock

Transistor BC161 PNP, 1A TO-39

Transistors

Transistor BC161 PNP, 1A TO-39

Reference:

TRBC161

The BC161 is a general-purpose PNP Bipolar Junction Transistor (BJT) in a metal TO-39 package, rated for 60V and 1A. Suited for driver stages, audio output and medium-power switching applications.

Last items in stock

Power Transistor BD438 PNP, 4A TO-126

Transistors

Power Transistor BD438 PNP, 4A TO-126

Reference:

TRBD438

The BD438 is a PNP power transistor in a TO-126 package, engineered for medium-power audio and voltage regulation applications. The complementary partner to the BD437, it delivers reliable switching and linear amplification in symmetrical output stages.

In Stock

Transistor BF234 NPN RF, 30mA TO-106

Transistors

Transistor BF234 NPN RF, 30mA TO-106

Reference:

TRBF234

The BF234 is an NPN Silicon RF Bipolar Transistor in a TO-106 package. Designed for high-frequency amplification in AM/FM IF stages, tuners and general RF/IF receiver circuits.

Last items in stock

Transistor BC637 NPN, 60V, 1A, TO-92

Transistors

Transistor BC637 NPN, 1A TO-92

Reference:

TRBC637

The BC637 is a medium-power NPN Bipolar Junction Transistor (BJT) in a TO-92 package, rated for 60V and 1A. Suitable for driving relays, motors and moderate-load switching in general-purpose electronics.

Last items in stock

Transistor 2N3563

Transistors

Transistor 2N3563 NPN, 0.05A TO-106

Reference:

TR2N3563

The 2N3563 is a silicon NPN Bipolar Junction Transistor (BJT) in a TO-106 package. Designed as an RF/IF small-signal transistor for high-frequency amplifier and oscillator stages.

Last items in stock

Transistor AF280 PNP, Germanium RF TO-72

Transistor AF280 PNP, Germanium RF TO-72 2

Transistors

Transistor AF280 PNP, Germanium RF TO-72

Reference:

TRAF280

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.

In Stock

Transistor BC169 NPN 20V TO-92

Transistors

Transistor BC169 NPN, 0.1A TO-92

Reference:

TRBC169

The BC169 is a low-noise NPN Bipolar Junction Transistor (BJT) in a TO-92 package, rated for 20V. Suited for small-signal amplification stages and general-purpose switching in audio and hobbyist circuits.

In Stock

Transistor BC558

Transistors

Transistor BC558 PNP, 30V, 0.1A TO-92

Reference:

TRBC558

In Stock

Transistor BLY89C

Transistors

Transistor BLY89C

Reference:

TRBLY89

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

Transistor 2SC516 NPN TO-18

Transistors

Transistor 2SC516 NPN TO-18

Reference:

TR2SC516

The 2SC516 is a classic high-frequency NPN Bipolar Junction Transistor (BJT) in a TO-18 metal package. Optimized for RF oscillators, amplifiers and high-frequency switching applications.

Last items in stock

Product added to wishlist

Product added to compare.