BC337 (50V, 0.8A)

Overview

The BC337 is a versatile NPN bipolar junction transistor (BJT) housed in a compact TO-92 package. It's designed for general-purpose amplification and switching tasks, offering a balanced combination of current gain, voltage rating, and cost-effectiveness. Whether you're a student learning transistor fundamentals, a hobbyist experimenting with circuits, or an engineer prototyping a design, the BC337 is a reliable workhorse that delivers consistent performance.

Key Features

• NPN Transistor: Ideal for low-power amplification and switching.
• High Current Gain (hFE): Typically ranges from 100 to 600, ensuring strong signal amplification.
• Low Saturation Voltage: Efficient switching with minimal power loss.
• Compact TO-92 Package: Easy to use on breadboards and PCBs.
• RoHS Compliant: Environmentally friendly lead-free construction.

Technical Specifications

• Type: NPN
• Collector-Emitter Voltage (Vceo): 50V
• Collector Current (Ic): 800mA (0.8A)
• DC Current Gain (hFE): 100–600 (depending on collector current)
• Transition Frequency (ft): 100 MHz
• Package: TO-92
• Operating Temperature Range: -55°C to +150°C

Applications & Use Cases

• Signal Amplification: Audio preamplifiers, sensor signal conditioning, and low-power drivers.
• Switching Circuits: Relay drivers, LED drivers, and small motor control.
• Hobby Projects: Robotics, automation, and educational electronics.
• Prototyping: Breadboard circuits and custom PCB designs.

What's Included

• 1 x BC337 Transistor (TO-92 package)

Compatibility

• Works with standard 5V and 3.3V logic levels when used as a switch.
• Compatible with common microcontrollers like Arduino, Raspberry Pi, and ESP32.
• Replaceable with other general-purpose NPN transistors like 2N2222 (with appropriate circuit adjustments).

MOKWN Recommendation

The BC337 is an essential component for any electronics enthusiast's toolkit. Its high current gain and moderate voltage/current ratings make it perfect for driving loads like relays and LEDs. For projects requiring higher current, consider complementary components like the BD139 or TIP120. At MOKWN, we ensure every transistor is tested for quality, so you can rely on consistent performance in your builds.