BC547 Transistor (Pack of 5)

The BC547 is one of the most widely used NPN bipolar junction transistors (BJTs) in electronics. Ideal for low-power amplification, switching circuits, and signal processing, this versatile TO-92 package transistor is a must-have staple for every engineer's component collection. Available in a convenient pack of 5 from The Engineer Store, Bengaluru. Fast shipping, genuine components, and dedicated technical support.

Specifications

Key Features

• Versatile NPN transistor: Functions efficiently as both a switch and a small-signal amplifier in a wide range of circuits.
• High DC current gain (h_FE up to 800): Provides excellent amplification for low-level signals, making it suitable for sensitive input stages.
• Low saturation voltage: Ensures minimal power loss when used in switching applications, improving overall circuit efficiency.
• Wide operating voltage range: Supports collector-emitter voltages up to 45V, accommodating a broad spectrum of circuit designs.
• 300 MHz transition frequency: Capable of handling high-frequency signals, suitable for RF and audio frequency applications.
• Compact TO-92 package: Industry-standard through-hole package that fits easily into breadboards, perfboards, and PCBs.
• Low power consumption: Rated at 500mW maximum dissipation, perfect for battery-powered and portable projects.
• Excellent complementary pair: Works seamlessly with the BC557 (PNP) transistor for push-pull and complementary circuit designs.

Why Choose This?

• 100% authentic BC547 transistors sourced from trusted and authorized semiconductor suppliers
• Pack of 5 provides excellent value - always have spares on hand for prototyping and replacements
• Consistent electrical parameters across all units for reliable and repeatable circuit performance
• 1-5 day shipping, 7-8 day delivery from our Bengaluru warehouse to most locations across India
• Expert technical support included - get help with circuit design, biasing calculations, and troubleshooting
• Ideal for beginners and professionals alike - one of the most well-documented transistors available

Common Applications

• Switching circuits: Drive LEDs, relays, buzzers, and small motors by using the BC547 as an electronic switch controlled by microcontrollers like Arduino or Raspberry Pi GPIO pins.
• Audio preamplifiers: Build low-noise preamplifier stages for microphones, guitar pickups, and other audio signal sources with excellent fidelity.
• Sensor interface circuits: Amplify weak signals from temperature sensors (LM35, thermistors), light-dependent resistors (LDRs), and other analog sensors.
• Oscillator circuits: Construct astable and monostable multivibrators, Colpitts oscillators, and Hartley oscillators for signal generation.
• Darlington pair configurations: Combine two BC547 transistors for ultra-high current gain when driving higher-current loads.
• Logic level conversion: Interface between different voltage-level systems in mixed-signal designs.
• Voltage regulation: Use in series-pass regulator circuits or as part of feedback networks in power supply designs.
• Timer and delay circuits: Create simple RC timing circuits with precise control over charge and discharge cycles.

Project Ideas

• Touch-Activated Switch: Build a simple touch sensor using the BC547's high gain - touching two exposed wires provides enough base current through skin resistance to switch on an LED or buzzer.
• Automatic Night

Frequently Asked Questions

Buy BC547 Transistor (Pack of 5) Online in India

Purchase the BC547 Transistor (Pack of 5) online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on BC547 Transistor (Pack of 5) with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy BC547 Transistor (Pack of 5) at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.