Transistor 2N2368

Transistor 2N2904 PNP TO-39

Transistors

Reference: TR2N2904

Part.No: 2N2904

€1.00

In Stock

Immediate Dispatch

The 2N2904 is a PNP Bipolar Junction Transistor (BJT) in a metal-can TO-39 package. Designed for high-speed saturated switching and general-purpose amplification in audio, driver and analog control circuits.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

2N2904 PNP Transistor - Reliable Switching & Amplification in TO-39

The 2N2904 is a silicon planar epitaxial PNP transistor housed in the rugged TO-39 metal can, originally developed for high-speed saturated switching and general-purpose amplification. It remains a popular choice for classic push-pull audio stages, driver circuits and analog control applications where a moderate-current PNP device with a solid metal package is needed.

Functions & Applications

PNP Silicon BJT: Complements NPN power stages in push-pull and driver topologies.
Rugged TO-39 Metal Can: Solid heat transfer and mechanical durability compared to plastic packages.
Fast Switching: High transition frequency (fT ≈ 200MHz) suited for saturated switching circuits.
Moderate Current Handling: Collector current up to 600mA covers relay drivers and small motor control.
Complementary Pairing: Direct PNP counterpart to the widely-used 2N2218 NPN transistor.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	PNP
Package / Case	TO-39
Collector-Emitter Voltage (Vceo)	-40V
Collector-Base Voltage (Vcbo)	-60V
Max Collector Current (Ic)	-600mA
Power Dissipation (Pd)	~600mW
Transition Frequency (fT)	200MHz
Mounting Type	Through-Hole (THT), metal can

Frequently Asked Questions

Q: What is the complementary NPN transistor for the 2N2904?
A: The direct complementary NPN transistor is the 2N2218, commonly used together in balanced push-pull amplifier stages.

Q: What is the maximum current the 2N2904 can switch?
A: The 2N2904 is rated for a maximum collector current of around 600mA, making it suitable for small relays, driver stages and moderate-load switching, but not for high-current motor loads.

Notes

This is a classic metal-can (TO-39) part often used in vintage/legacy circuit repairs and reproductions; some listings also reference a TO-92 variant (PN2904) which is a different package.

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-39

16 other products in the same category:

Transistor 2SC900 NPN, 20mA TO-92

Transistors

Transistor 2SC900 NPN, 20mA TO-92

Reference:

TR2SC900

The 2SC900 is a silicon NPN small-signal transistor in a TO-92 package, originally designed as a low-frequency, low-noise amplifier for audio preamp and RF front-end stages.

In Stock

Power Transistor AD143 PNP, TO-3

Transistors

Power Transistor AD143 PNP, TO-3

Reference:

TRAD143

The AD143 is a classic PNP Germanium Power Transistor in a TO-3 package. Designed for high-power audio amplifier output stages and other demanding applications requiring robust switching and amplification at moderate to high current levels.

Last items in stock

Transistor BF255 NPN, RF/FM TO-92

Transistors

Transistor BF255 NPN, RF/FM TO-92

Reference:

TRBF255

The BF255 is a high-frequency NPN BJT transistor in a TO-92 package, specifically optimized for RF and FM applications. Designed for low-noise amplification and mixing around 100MHz, it is ideal for FM front-end circuits, oscillators, and amateur radio projects.

In Stock

Transistor BD176 PNP, 45V, 3A, 30W, TO-126

Transistors

Power Transistor BD176 PNP, 3A TO-126

Reference:

TRBD176

The BD176 is a PNP power BJT transistor in a TO-126 package, rated for 45V and 3A. Suitable for power amplification, motor driving and switching applications requiring moderate power handling.

Last items in stock

Transistor BF200 NPN, VHF TO-72

Transistor BF200 NPN, VHF TO-72 2

Transistors

Transistor BF200 NPN, VHF TO-72

Reference:

TRBF200

The BF200 is an NPN silicon transistor in a shielded TO-72 metal-can package, specifically designed for VHF (Very High Frequency) applications. Ideal for RF amplifiers, TV tuners, and antenna front-end circuits where low noise and high frequency stability are critical.

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 BC547

Transistor BC547 2

Transistors

Transistor BC547 NPN, 0.1A TO-92

Reference:

TRBC547

The BC547 is a high-performance NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Optimized for small signal amplification and low-power switching in Arduino, ESP32 and general-purpose DIY electronics.

In Stock

Power Transistor BD646 PNP Darlington, TO-220

Transistors

Power Transistor BD646 PNP Darlington, TO-220

Reference:

TRBD646

The BD646 is a PNP Darlington transistor in a TO-220 package, engineered for high-current switching and motor control applications. Its internal Darlington configuration delivers exceptional current gain, enabling direct load driving from weak logic signals.

Last items in stock

Power Transistor 2SC2233 NPN, 4A TO-220

Transistors

Power Transistor 2SC2233 NPN, 4A TO-220

Reference:

TR2SC2233

The 2SC2233 is a high-power NPN Bipolar Junction Transistor (BJT) in a TO-220 package. Designed for amplification, motor driving and switching applications requiring robust current handling up to 4A.

Last items in stock

Power Transistor 2SD1555 NPN, 5A TO-3PF

Transistors

Power Transistor 2SD1555 NPN, 5A TO-3PF

Reference:

TR2SD1555

The 2SD1555 is a high-voltage NPN Bipolar Junction Transistor (BJT) in a TO-3PF isolated package. Designed specifically for horizontal deflection circuits in CRT displays and high-voltage switching applications, featuring a built-in damper diode for protection.

Last items in stock

Transistor 2SC693 NPN, 20mA TO-92

Transistors

Transistor 2SC693 NPN, 20mA TO-92

Reference:

TR2SC693

The 2SC693 is a low-noise NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Purpose-designed for audio preamplifiers and sensitive signal processing applications where low noise performance is critical.

In Stock

Power Transistor BD809 NPN, 12A TO-220

Transistors

Power Transistor BD809 NPN, 12A TO-220

Reference:

TRBD809

The BD809 is a high-linearity NPN Power BJT in a TO-220 package, designed specifically for audio amplifier output stages. Ideal for push-pull configurations paired with the complementary BD810 PNP transistor.

In Stock

Power Transistor BD441 NPN, 10A TO-126

Transistors

Power Transistor BD441 NPN, 10A TO-126

Reference:

TRBD441

The BD441 is a medium-power NPN Bipolar Junction Transistor (BJT) in a TO-126 package. Engineered for robust switching and audio driver applications requiring higher voltage tolerance and efficient heat dissipation.

Last items in stock

Transistor 2SD261 NPN, 0.5A TO-92

Transistors

Transistor 2SD261 NPN, 0.5A TO-92

Reference:

TR2SD261

The 2SD261 is a general-purpose NPN Bipolar Junction Transistor (BJT) in a TO-92 package. Reliable for low- to medium-current switching and amplification in hobby electronics, hobby robotics, and educational projects.

In Stock

Transistor BC120

Transistors

Transistor BC120

Reference:

TRBC120

Το BC120 είναι ένα πυριτίου NPN Bipolar Junction Transistor (BJT) σε μεταλλική θήκη TO-39, με μέγιστο ρεύμα συλλέκτη 1A. Σχεδιασμένο ως τρανζίστορ εξόδου audio συχνοτήτων, ιδανικό για κλασικά κυκλώματα ενισχυτών.

In Stock

Power Transistor BU326A NPN, 6A TO-3

Transistors

Power Transistor BU326A NPN, 6A TO-3

Reference:

TRBU326A

The BU326A is a high-voltage NPN Power Transistor in a TO-3 package, purpose-built for CRT deflection in televisions and high-current switching in industrial power supplies. Its robust metal case and excellent thermal characteristics make it ideal for applications requiring rapid mains-voltage switching with minimal losses.

Last items in stock

Product added to wishlist

Product added to compare.