BC847QASZ

Product Overview

Category: Transistor
Use: Amplification and switching in electronic circuits
Characteristics: Small signal NPN transistor, high current gain, low voltage drop
Package: SOT-23
Essence: Essential for amplifying weak signals in electronic devices
Packaging/Quantity: Available in reels of 3000 units

Specifications

• Collector-Base Voltage (VCBO): 50V
• Collector-Emitter Voltage (VCEO): 45V
• Emitter-Base Voltage (VEBO): 6V
• Collector Current (IC): 100mA
• Power Dissipation (Ptot): 250mW
• Transition Frequency (fT): 270MHz

Detailed Pin Configuration

1. Emitter (E)
2. Base (B)
3. Collector (C)

Functional Features

• High current gain
• Low noise
• Fast switching speed
• Small package size

Advantages and Disadvantages

Advantages: - High current gain allows for small input signals to control larger output signals - Low voltage drop minimizes power loss - Small package size enables compact circuit design

Disadvantages: - Limited maximum collector current compared to other transistors - Relatively low breakdown voltage

Working Principles

The BC847QASZ is a small signal NPN transistor that operates by amplifying small input currents to produce larger output currents. When a small current flows into the base terminal, it controls the larger current flowing between the collector and emitter terminals, allowing for signal amplification and switching.

Detailed Application Field Plans

The BC847QASZ is commonly used in audio amplifiers, signal processing circuits, and sensor interfaces due to its high current gain and low noise characteristics. It is also utilized in low-power switching applications such as LED drivers and relay control circuits.

Detailed and Complete Alternative Models

• BC846B: Similar small signal NPN transistor with slightly different specifications
• 2N3904: General-purpose NPN transistor with comparable characteristics
• MMBT3904: Surface-mount equivalent of 2N3904 with similar performance

This completes the English editing encyclopedia entry structure for BC847QASZ, providing comprehensive information about the product's category, use, characteristics, specifications, pin configuration, functional features, advantages and disadvantages, working principles, application field plans, and alternative models.