Transistor BC337 NPN, 45V, 800mA, 360mW, TO-92

Transistor BC337 NPN, 800mA TO-92

Transistors

Reference: TRBC337

Part.No: BC337

€0.60

In Stock

Immediate Dispatch

The BC337 is an NPN Bipolar Junction Transistor (BJT) in a TO-92 package, capable of handling higher currents than general-purpose small-signal transistors. Well suited for driving relays, LEDs and small loads in Arduino, ESP32 and DIY circuits.

Add to cart

Subscribe To When In Stock

You have successfully subscribed to this product

Description
Product Details

BC337 NPN Transistor - Higher Current Switching in TO-92

The BC337 is an NPN transistor housed in the compact TO-92 package, rated for up to 800mA of collector current, making it a popular choice when a standard small-signal transistor like the BC547 isn't enough current-wise. It offers high gain for both switching and amplification tasks in general-purpose circuits.

Functions & Applications

Higher Current Handling: Up to 800mA, ideal for driving small relays, motors and multiple LEDs.
High DC Current Gain (hFE): Good sensitivity for amplification and logic-level switching.
Standard TO-92 Package: Easy through-hole soldering, breadboard and prototyping friendly.
MCU Compatible: Works well with 3.3V/5V outputs from Arduino, ESP32 and similar boards.

Technical Specifications

Parameter	Value / Specification
Transistor Type	BJT (Bipolar Junction Transistor)
Polarity / Channel	NPN
Package / Case	TO-92
Collector-Emitter Voltage (Vceo)	45V
Max Collector Current (Ic)	800mA
Power Dissipation (Pd)	360mW
Mounting Type	Through-Hole (THT)

Frequently Asked Questions

Q: Can the BC337 drive a small 12V relay?
A: Yes, as long as the relay coil current stays below 800mA (Ic). Use a flyback diode across the coil to protect the transistor from voltage spikes.

Q: What is the complementary PNP part for BC337?
A: The complementary PNP transistor is the BC327.

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: NPN
Transistor Case Style: TO-92

16 other products in the same category:

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

Power Transistor BD538 PNP, 4A TO-220

Transistors

Power Transistor BD538 PNP, 4A TO-220

Reference:

TRBD538

The BD538 is a PNP Power Bipolar Junction Transistor (BJT) in a TO-220 package. Built for reliable linear amplification and fast switching in power supply circuits, audio amplifiers, and industrial load-switching applications.

Last items in stock

Transistor BF337 NPN, TO-39

Transistors

Transistor BF337 NPN, TO-39

Reference:

TRBF337

The BF337 is a high-voltage NPN Bipolar Junction Transistor (BJT) in a TO-39 package. Engineered for video output and deflection circuits in classic CRT monitors and televisions, delivering reliable performance at elevated voltages.

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

Transistor BC141

Transistors

Transistor BC141

Reference:

TRBC141

Το BC141 είναι ένα NPN silicon planar epitaxial τρανζίστορ σε μεταλλική θήκη TO-39, σχεδιασμένο για switching και ενίσχυση μέσης ισχύος έως 1A. Χρησιμοποιείται συχνά σε τελικά στάδια ενισχυτών ήχου και γενικής χρήσης κυκλώματα διακοπής.

Upon Request

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

Transistor BC267 NPN, 45 V, 1A, 375mW, TO-18

Transistors

Transistor BC267 NPN, 1A TO-18

Reference:

TRBC267

The BC267 is an NPN Bipolar Junction Transistor (BJT) in a metal TO-18 package, rated for up to 1A collector current. Suitable for switching and small-signal amplification tasks that require higher current handling than typical small-signal transistors.

Last items in stock

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

Power Transistor BU406 NPN, 8A TO-220

Transistors

Power Transistor BU406 NPN, 8A TO-220

Reference:

TRBU406

The BU406 is a high-voltage NPN power transistor in a TO-220 package, specifically designed for high-speed switching applications in deflection circuits and line output stages (LOPT) of CRT monitors and television receivers.

In Stock

Transistor 2N2222

Transistors

Transistor 2N2222 NPN, 0.8A TO-18

Reference:

TR2N2222

The 2N2222 is a classic NPN Bipolar Junction Transistor (BJT) in a TO-18 metal-can package. Designed for high-speed switching and general-purpose linear amplification in hobbyist, educational and vintage-style circuits.

In Stock

Transistor BD169 NPN, 80V, 1.5A, 20W, TO126

Transistors

Power Transistor BD169 NPN, 1.5A TO-126

Reference:

TRBD169

The BD169 is an NPN power transistor in a TO-126 package, rated for 80V and 1.5A. Suited for driver stages, audio amplifiers and medium-power switching circuits.

Last items in stock

Transistor TIP41 NPN

Transistors

Power Transistor TIP41 NPN, 6A TO-220

Reference:

TRTIP41

The TIP41 is a robust NPN Bipolar Junction Transistor (BJT) in a TO-220 package, rated for up to 6A continuous collector current. Widely used in audio amplifier output stages, voltage regulators, and motor control circuits requiring reliable linear performance and thermal stability.

In Stock

Power Transistor 2SD525 NPN, 5A TO-220

Transistors

Power Transistor 2SD525 NPN, 5A TO-220

Reference:

TR2SD525

The 2SD525 is a high-current NPN power transistor in a TO-220 package. Designed for motor driving, amplification stages, and power switching applications requiring robust performance at medium voltage and high collector current.

In Stock

Transistor BD226 NPN, 45V, 1.5A, TO-126

Transistors

Transistor BD226 NPN, 1.5A TO-126

Reference:

TRBD226

The BD226 is an NPN Bipolar Junction Transistor (BJT) rated for 45V / 1.5A, housed in a TO-126 package. Suitable for driver-stage amplification and medium-power switching in audio, motor control and general-purpose circuits.

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 BD132 PNP, 45V, 3A, 15W, TO-126

Transistors

Power Transistor BD132 PNP, 3A TO-126

Reference:

TRBD132

The BD132 is a PNP Bipolar Junction Transistor (BJT) in a TO-126 power package, rated for 45V and 3A. Commonly used in audio amplifier output stages, DC motor drivers and general-purpose power switching.

In Stock

Product added to wishlist

Product added to compare.