BC327 (45V, 0.8A)

Overview

The BC327 is a reliable general-purpose PNP bipolar junction transistor (BJT) housed in a compact TO-92 package. With a collector-emitter voltage rating of 45V and a continuous collector current of 0.8A, it is an excellent choice for a wide range of switching and amplification tasks in your electronics projects. Whether you are building a simple LED driver, a motor controller, or a signal amplifier, the BC327 provides consistent performance and easy integration.

Key Features

• PNP transistor for negative-ground applications
• 45V collector-emitter voltage (VCEO) for medium-voltage switching
• 0.8A continuous collector current (IC) for moderate loads
• TO-92 package – breadboard-friendly and easy to solder
• High current gain (hFE) – typically 100-630, ensuring good amplification
• Low saturation voltage – minimizes power loss in switching applications
• Complementary pair with BC337 (NPN) for push-pull circuits

Technical Specifications

• Type: PNP
• Package: TO-92
• Collector-Emitter Voltage (VCEO): 45V
• Collector-Base Voltage (VCBO): 50V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 0.8A
• Power Dissipation (PD): 625mW
• DC Current Gain (hFE): 100 – 630 (at IC=100mA, VCE=1V)
• Transition Frequency (fT): 100MHz
• Operating Temperature Range: -55°C to +150°C

Applications & Use Cases

• Switching circuits: Driving relays, LEDs, and small DC motors
• Amplification: Audio pre-amplifiers, signal conditioning, sensor interfaces
• Darlington pairs: Pair with BC337 for high-gain configurations
• Power management: Voltage regulators, current limiters
• Robotics: Motor control and actuator drivers
• Educational projects: Build and learn transistor basics

What's Included

• 1x BC327 PNP Transistor (TO-92 package)

Compatibility

• Complementary NPN: BC337 (for push-pull stages)
• Typical replacements: BC328, 2N3906 (check pinout and ratings)
• Works with: Arduino, Raspberry Pi, ESP32, and other microcontrollers (via base resistor)
• Breadboard and PCB compatible with standard 0.1" spacing

MOKWN Recommendation

The BC327 is a staple for any electronics hobbyist or professional. Its complementary pairing with the BC337 makes it invaluable for building efficient push-pull amplifier stages and H-bridge motor drivers. At MOKWN, we recommend keeping a stock of both BC327 and BC337 for your prototyping needs. For higher current applications, consider our TIP42 or BD140 transistors.