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COMMON EMITTER AMPLIFIER

Name: COMMON EMITTER AMPLIFIER
Brand: EDUTEK INSTRUMENTATION
Price: 1000.0 INR
Availability: InStock

Price 1000.0 INR/ Piece

Get a Price/Quote

MOQ : 1 Piece

COMMON EMITTER AMPLIFIER Specification

Display Type
No display

Thermal Conductivity
Standard PCB thermal dissipation

Interface
2-pin input, 2-pin output

Power Source
External DC supply

IP Rating
Not rated

Response Time
Instantaneous

Output
Amplified AC signal

Usage
ENGINEERING ELECTRONICS INSTRUMENTS

Input
Low-level AC signal / microphone input

Power Supply
DC Power Supply

Components
Transistor, resistors, capacitors, PCB, connectors

Features
High voltage gain, simple construction, suitable for basic amplification

Operating Temperature
0C to 70C

Sensors Specification
No sensors

Product Type
COMMON EMITTER AMPLIFIER

Application
ENGINEERING ELECTRONICS INSTRUMENTS

Rated Voltage
12V DC

Supply Voltage
9V - 12V DC

Size
Medium size board

Dimension (L*W*H)
Approx. 65mm x 50mm x 12mm

Function
Amplifies small AC signals

Color
Green (PCB), black and silver (components)

Weight
Approx. 40g

Current Rating
Approx. 10mA

Capacity
Single channel amplification

Thickness
PCB approx. 1.6mm

Frequency
Up to 100 kHz (depends on transistor and design)

Safety Precautions
Handle with care for static-sensitive components

Test Points
Provided for educational testing

Load Resistance
Recommended 10 k

Mounting Type
Through hole

PCB Material
FR4 glass epoxy

Bypass Capacitor
Electrolytic (for emitter stabilization)

Output Impedance
Less than 1 k

Gain
Voltage gain typically 50-200

Soldering Type
Manual soldering

Input Impedance
Approximately 1 k to 10 k

Coupling Capacitors
Electrolytic (value depends on circuit design)

Package Contents
Assembled board or DIY kit

Transistor Type
NPN (commonly BC547, BC548 or equivalent)

COMMON EMITTER AMPLIFIER Trade Information

Minimum Order Quantity
1 Piece

Payment Terms
Cash on Delivery (COD), Cash Advance (CA), Cheque, Telegraphic Transfer (T/T), Letter of Credit (L/C)

Packaging Details
Carton Box, Export Quality also Available

Main Export Market(s)
Asia, Middle East, Africa

Main Domestic Market
All India

Certifications
ISO 9001, 14001, CE

About COMMON EMITTER AMPLIFIER

Specification:

COMMON EMITTER AMPLIFIER

It is used to study common emitter amplifier.

Features:

On board circuit to study common emitter amplifier.

On board POT for varying amplitude of input signal.

On board test point to analyze the signal

ON/OFF switch and LED for power indication.

Bare board Tested Glass Epoxy SMOBC PCB is used.

Block Description Screen printed on glassy epoxy PCB

All interconnections are made using 2mm banana Patch cords

High Voltage Gain for Educational Applications

This NPN common emitter amplifier boasts a robust voltage gain ranging from 50 to 200, making it an essential component for engineering students and educational demonstrations. Supplied as either an assembled board or in DIY kit form, it facilitates hands-on learning, circuit analysis, and experimentation with transistor-based amplification.

Quality Construction and Reliable Components

Featuring an FR4 glass epoxy PCB, through-hole mounting, electrolytic coupling and bypass capacitors, and popular NPN transistors (BC547, BC548), this amplifier delivers stable performance. Its design supports manual soldering and standard testing procedures, making it ideal for use in institutions and export markets alike.

FAQ's of COMMON EMITTER AMPLIFIER:

Q: How does the common emitter amplifier increase the amplitude of small AC signals?

A: The common emitter amplifier uses an NPN transistor to boost weak AC input signals, such as those from microphones, by providing significant voltage gain. The circuit design ensures that small fluctuations at the input result in larger variations at the output, making faint signals audible or measurable in educational applications.

Q: What types of input and output connections are supported by this amplifier?

A: This amplifier features simple 2-pin input and 2-pin output connectors, making integration with signal sources (like microphones) and measurement instruments straightforward. It is optimized for low-level AC input signals and delivers an amplified AC output suitable for further analysis or audio output.

Q: When is it recommended to use a load resistance of 10 k with this amplifier?

A: A 10 k load resistance is advised during standard operation to ensure maximum voltage transfer and to maintain the optimal output impedance for common laboratory or testing environments. This value helps achieve stable amplification and predictable performance.

Q: Where can this amplifier be applied most effectively?

A: Primarily designed for engineering electronics instruments, the amplifier excels in educational laboratories, workshops, and electronic testing scenarios. Its structure and included test points allow students and professionals to investigate and understand amplifier behavior hands-on.

Q: What is the assembly and testing process for the DIY kit version?

A: The DIY kit provides all essential components, including transistors, resistors, capacitors, PCB, and connectors. Assemble the circuit on the FR4 PCB using manual soldering, then connect power and input/output signals. Utilize the onboard test points to verify voltage gain and signal integrity during operation.

Q: How can users benefit from the test points provided on the board?

A: Test points allow direct measurement of voltages and signal changes at various circuit locations during operation. This feature is especially beneficial for students and educators, as it enables thorough analysis and troubleshooting without interrupting circuit function.

Q: What safety precautions should be taken when using this amplifier kit?

A: As the circuit contains static-sensitive components like transistors, users should handle parts carefully, avoid static discharge, and always operate the amplifier within the rated 9V-12V DC supply. Ensuring proper soldering and avoiding overvoltage will protect both the board and the user.

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