BC549

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SKU: R3-F-4-13

BC549

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Overview
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Description:
The BC549 is a low-noise NPN bipolar junction transistor (BJT) designed for sensitive signal amplification and switching applications. It is widely used in audio preamplifiers, microphone circuits, and precision analog designs where low noise and stable performance are important.

Specifications:

Type: NPN BJT Transistor
Collector-Emitter Voltage (Vce): 30V
Collector-Base Voltage (Vcb): 30V
Emitter-Base Voltage (Veb): 5V
Continuous Collector Current (Ic): up to 100mA
Power Dissipation: ~500mW
Current Gain (hFE): 110 – 800 (A/B/C variants)
Noise Figure: Low (ideal for audio applications)
Transition Frequency: ~150 MHz
Package: TO-92

Features:

Low-noise transistor suitable for audio circuits
High current gain options available
Compact TO-92 package
Stable and reliable performance
Widely used in analog electronics

Applications:

Audio preamplifiers
Microphone amplifiers
Signal amplification
Switching circuits
Analog and embedded systems

Pin Configuration (Flat side facing you):

Collector (C)
Base (B)
Emitter (E)

Important Note:

Suitable for low current applications only (≤100mA)
Use a base resistor to limit current
Not suitable for high-power loads

Package Includes:

1 × BC549 Transistor

Disclaimer:
No warranty. No guarantee. No return. No replacement.

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