2N3906 Transistor (40V, 0.2A)

Overview

The 2N3906 is a widely used PNP bipolar junction transistor (BJT) designed for general-purpose switching and amplification. It complements the popular 2N3904 NPN transistor, making it a staple in hobbyist and professional electronics projects. With a collector-emitter voltage rating of 40V and a continuous collector current of 200mA, the 2N3906 is ideal for low-power applications where reliable switching and signal amplification are required.

Key Features

• PNP Bipolar Junction Transistor: Suitable for high-side switching and complementary circuit designs.
• Voltage Rating: Collector-Emitter Voltage (VCEO) of 40V.
• Current Capacity: Continuous Collector Current (IC) of 200mA.
• High Gain Bandwidth Product: Typically 250MHz, suitable for RF and audio applications.
• Complementary to 2N3904: Enables push-pull and other complementary configurations.
• Through-Hole Package: TO-92 package for easy breadboarding and prototyping.
• Low Cost and Widely Available: Economical choice for educational and production environments.

Technical Specifications

• Type: PNP
• Collector-Emitter Voltage (VCEO): 40V
• Collector-Base Voltage (VCBO): 40V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 200mA
• Power Dissipation (PD): 625mW
• DC Current Gain (hFE): 100-300 (at IC = 10mA, VCE = 1V)
• Transition Frequency (fT): 250MHz
• Operating Temperature Range: -55°C to +150°C
• Package: TO-92

Applications & Use Cases

• Switching Circuits: Ideal for controlling LEDs, relays, and small DC loads.
• Amplification: Use in audio preamplifiers, signal conditioning, and sensor interfaces.
• Logic Level Shifting: Interface between different voltage domains in digital circuits.
• Complementary Pair Configurations: Pair with 2N3904 for push-pull amplifiers and H-bridge drivers.
• Educational Projects: Perfect for learning transistor fundamentals and building basic circuits.
• Prototyping: Commonly used in Arduino, Raspberry Pi, and other microcontroller projects.

What's Included

• 1x 2N3906 PNP Transistor (TO-92 package)

Compatibility

• Complementary Part: 2N3904 (NPN)
• Common Replacements: BC557, 2N4403, S8550 (check pinout before substituting)
• Compatible with: Breadboards, perfboards, and standard through-hole PCBs.

MOKWN Recommendation

For Egyptian makers and engineers, the 2N3906 is an essential component for your electronics lab. Whether you're building a simple switch, an audio amplifier, or a complex robotics project, this transistor offers reliable performance at an affordable price. Stock up on both 2N3906 and 2N3904 to cover all your general-purpose transistor needs. Order now and get same-day dispatch from our Cairo warehouse!