Transistor 2SA93 PNP Germanium, TO-1

Transistor 2SA93 PNP Germanium, TO-1

Transistors

Reference: TR2SA93

Part.No: 2SA93

€1.20

Last items in stock

Immediate Dispatch

The 2SA93 is a classic PNP Germanium Bipolar Junction Transistor (BJT) in a TO-1 metal can package. A vintage component ideal for restoring and repairing vintage radios, amplifiers and audio equipment.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

2SA93 Vintage PNP Germanium Transistor - Classic Restoration Part

The 2SA93 is a PNP germanium transistor from the golden age of analog electronics. With its characteristic warm gain response and moderate voltage ratings, it remains the go-to choice for anyone restoring vintage audio amplifiers, radio receivers and other mid-20th-century equipment.

Functions & Applications

Germanium Construction: Characteristic warm, natural gain response valued in vintage audio circuits.
PNP Polarity: Suitable for grounded-collector and common-collector amplifier stages in older designs.
TO-1 Metal Can Package: Robust, hermetically sealed enclosure typical of mid-20th-century electronics.
Moderate Voltage Rating: 15V Vceo suited for low-voltage vintage circuit topologies.
Direct Replacement: Compatible with original schematics in classic audio and RF equipment.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-1
Collector-Emitter Voltage (Vceo)	15V
Material	Germanium
Mounting Type	Through-Hole (THT), Metal Can

Frequently Asked Questions

Q: Is the 2SA93 suitable for modern circuit designs?
A: The 2SA93 is primarily intended for restoration and repair of vintage equipment. Modern designs typically use silicon transistors (such as BC557 or 2N3906). However, some audiophile and boutique guitar amp builders intentionally choose germanium for its sonic characteristics.

Q: What is a suitable silicon replacement if the original 2SA93 is unavailable?
A: For general-purpose low-current PNP switching, a BC557 or 2N3906 can serve as a modern substitute, though frequency response and gain characteristics will differ slightly due to the material change from germanium to silicon.

Notes

This is a vintage NOS (New Old Stock) germanium transistor. Germanium parts have higher leakage current and lower voltage/current ratings compared to modern silicon equivalents. Store in a dry environment; germanium is sensitive to humidity.

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-1

16 other products in the same category:

Transistor BD138 PNP, 60V, 1.5A, 12.5W, TO-126

Transistors

Power Transistor BD138 PNP, 1.5A TO-126

Reference:

TRBD138

The BD138 is a PNP power BJT in a TO-126 package, rated for 60V/1.5A. Commonly used as a driver or output stage transistor in audio amplifiers, power regulators and motor control circuits.

Upon Request

Transistor BC172 NPN 25 V 100 mA 300 mW TO-92

Transistors

Transistor BC172 NPN, 0.1A TO-92

Reference:

TRBC172

The BC172 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Suited for small-signal amplification and low-power switching in audio preamps, hobbyist circuits and general-purpose electronics.

Last items in stock

Transistor BFR91 NPN, 5GHz TO-50

Transistors

Transistor BFR91 NPN, 5GHz TO-50

Reference:

TRBFR91

The BFR91 is a high-frequency NPN Bipolar Junction Transistor (BJT) in a TO-50 package, optimized for microwave and UHF applications. With a transition frequency exceeding 5 GHz, it is ideal for low-noise amplifiers (LNAs) in satellite reception, UHF receivers and broadband RF circuits.

In Stock

Transistor BF858 NPN, 300V TO-202

Transistors

Transistor BF858 NPN, 300V TO-202

Reference:

TRBF858

The BF858 is an NPN high-voltage bipolar transistor in a TO-202 package, designed for video output amplifier stages in CRT televisions and monitors. It provides the high breakdown voltage needed to drive the RGB electron guns of the picture tube.

In Stock

Transistor BD235 NPN, 60V, 2A, 25W, TO-126

Transistors

Power Transistor BD235 NPN, 2A TO-126

Reference:

TRBD235

The BD235 is an NPN power transistor (BJT) in a TO-126 package, rated for 60V and 2A. Suitable for audio amplifier output stages, motor drivers and general-purpose power switching.

Last items in stock

Transistor BD142 NPN, 45V, 15A, TO-3

Transistors

Power Transistor BD142 NPN, 15A TO-3

Reference:

TRBD142

The BD142 is a NPN Bipolar Junction Transistor (BJT) in a rugged TO-3 metal package, rated for up to 15A and 45V. Designed for high-current switching and power amplification in motor drivers, power supplies and audio output stages.

Last items in stock

Power Transistor TIP120 Darlington NPN, 5A TO-220

Power Transistor TIP120 Darlington NPN, 5A TO-220 2

Transistors

Power Transistor TIP120 Darlington NPN, 5A TO-220

STMicroelectronics

Reference:

TRTIP120

The TIP120 is a high-current Darlington NPN transistor in TO-220 package, designed for driving loads up to 5A. With exceptional current gain and low saturation voltage, it easily interfaces microcontroller outputs with motors, relays, solenoids and other power devices.

In Stock

Transistor BF115 NPN, RF Silicon TO-72

Transistor BF115 NPN, RF Silicon TO-72 2

Transistors

Transistor BF115 NPN, RF Silicon TO-72

Reference:

TRBF115

The BF115 is a classic NPN silicon transistor in a TO-72 package with 4 leads, purpose-built for RF and IF amplification in vintage radio receivers. Superior thermal stability and built-in shielding make it ideal for restoration and retro radio projects.

In Stock

Transistor BC184 NPN 30 V 200 mA 300 mW TO-92

Transistors

Transistor BC184 NPN, 0.2A TO-92

Reference:

TRBC184

The BC184 is an NPN Bipolar Junction Transistor (BJT) in a TO-92 package, rated for 30V / 200mA. A general-purpose small-signal transistor suited for amplification and switching in hobbyist and educational circuits.

In Stock

Power Transistor BD243 NPN, 6A TO-220

Transistors

Power Transistor BD243 NPN, 6A TO-220

Reference:

TRBD243

The BD243 is a high-current NPN Power Transistor in a TO-220 package, engineered for audio power amplifiers, voltage regulators, and motor control circuits. Renowned for reliability and thermal stability in demanding applications.

Last items in stock

Transistor BC171 NPN 45 V 100 mA 300 mW TO-92

Transistors

Transistor BC171 NPN, 0.1A TO-92

Reference:

TRBC171

The BC171 is an NPN Bipolar Junction Transistor (BJT) in a TO-92 package, rated for 45V / 100mA. A classic small-signal part suited to audio amplification and general-purpose switching in hobby and repair projects.

Last items in stock

Transistor BF173 NPN, Video/RF TO-72

Transistor BF173 NPN, Video/RF TO-72 2

Transistors

Transistor BF173 NPN, Video/RF TO-72

Reference:

TRBF173

The BF173 is an NPN Bipolar Junction Transistor (BJT) in a shielded TO-72 package, purpose-designed for video and RF applications. Commonly used as the final IF amplification stage in television receivers and high-frequency signal processing circuits.

In Stock

Transistor BC301 NPN, 60V, 1A, 850mW, TO-39

Transistors

Transistor BC301 NPN, 1A TO-39

Reference:

TRBC301

The BC301 is an NPN Bipolar Junction Transistor (BJT) in a metal TO-39 package, rated for 60V and 1A. Suited for medium-power switching and amplification stages in legacy and general-purpose analog designs.

In Stock

Transistor 2N2219

Transistor 2N2219 2

Transistors

Transistor 2N2219 NPN, 0.8A TO-39

Reference:

TR2N2219

The 2N2219 is a classic NPN Bipolar Junction Transistor (BJT) in a rugged metal-can TO-39 package. Designed for high-speed switching and medium-current amplification, it handles higher collector currents than typical TO-92 small-signal parts.

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 2SB185 PNP, Germanium TO-1

Transistors

Transistor 2SB185 PNP, Germanium TO-1

Reference:

TR2SB185

The 2SB185 is a classic PNP Germanium Transistor in a TO-1 metal can package. Designed for vintage audio equipment repair and restoration, this NOS (New Old Stock) part maintains authentic performance in retro amplifiers and radio receivers.

In Stock

Product added to wishlist

Product added to compare.