BC547 Transistor Voltage: Complete Guide to Transistor BC547

2024/10/9 14:42:40

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Transistors have played an fundamental part within the improvement of present day electronics, and the BC547 is one of the foremost broadly utilized transistors in different low-power applications. This direct digs into the different perspectives of the BC547 transistor, counting its voltage characteristics, stick arrangement, applications, counterparts, and much more. On the off chance that you're working on a extend including this common NPN transistor, this comprehensive direct will assist you get it its utilization and specifications.


BC547B - ON Semiconductor : Amplifier Transistors


Table of Contents

What is the BC547 Transistor?

The BC547 could be a general-purpose NPN transistor basically utilized for exchanging and intensification. It is portion of the BC54x arrangement, where each transistor in this family is marginally diverse in terms of pick up or voltage appraisals, but they all serve comparative purposes in circuits. Its low power rating and ease of use make it a preferred choice in educational electronics, DIY projects, and low-voltage devices.

BC547 Pin Configuration

BC547

The bc547 pinout is straightforward, consisting of three main pins:

Pin Number
Pin Name
Description
1
Collector
The collector is where the output current flows out in common-emitter configuration.
2
Base
The base controls the current flowing from the collector to the emitter.
3
Emitter
The emitter is the yield terminal where the current streams out.

To utilize the BC547 transistor in a circuit, you'd interface the base to the input flag, the collector to the stack, and the emitter to the ground.

Basic Features of the BC547 Transistor

The BC547 transistor works in a wide extend of applications due to its effortlessness and flexibility. Some of its core features include:

Parameter
Value
Transistor Type
NPN
Maximum Collector-Emitter Voltage (Vce)
45V
Maximum Base Current (Ib)
5mA
Maximum Collector Current (Ic)
100mA

Its low cost and widespread availability make it ideal for prototyping and testing.

Working Principle of the BC547

As an NPN transistor, the BC547 works by applying a small voltage to the base, which grants a much greater current to stream from the collector to the emitter. In other words, it can be utilized as a switch or intensifier, depending on the course of action.

When the base is associated to a voltage higher than the emitter (with a commonplace limit of around 0.7V), it turns on the transistor, permitting current to stream from the collector to the emitter. This ability to control larger currents with a small input makes it extremely valuable in circuits.


Voltage Characteristics of BC547

Collector-Emitter Voltage (Vce)

One of the essential parameters of the BC547 transistor is its Collector-Emitter Voltage (Vce). The foremost extraordinary Vce rating for the BC547 is 45V, which recommends it can handle up to 45V between the collector and the emitter without being hurt. In any case, for most applications, the transistor is utilized with lower voltages, commonly between 5V and 12V.

Base-Emitter Voltage (Vbe)

For the BC547 to function in its dynamic locale, the base-emitter voltage (Vbe) must be over a certain limit. This limit is for the most part around 0.6V to 0.7V. In case the voltage is underneath this edge, the transistor remains off, and no current streams from the collector to the emitter.

Collector Current (Ic)

The greatest Collector Current (Ic) of the BC547 is 100mA. This implies the transistor can switch or intensify streams up to 100mA without harm. On the off chance that the current surpasses this constrain, the transistor may overheat or fall flat.


BC547 transistor application and circuit diagram

The BC547 is widely used in various applications, ranging from simple electronic circuits to more complex devices. Below are some common uses:

BC547 as a Switch

One of the foremost common employments of the BC547 is as a bc547 switch. In this arrangement, the transistor either permits or pieces current stream through a circuit based on the input at its base. For illustration, it can be utilized in a transfer control circuit, Driven driver, or indeed a engine control framework.

Switch Circuit

BC547 Switch circuit

BC547 as an Amplifier

The BC547 can moreover be utilized as an amplifier. In this mode, it takes a little input current at the base and produces a bigger yield current at the collector. This application is typical in audio devices, signal amplifiers, and other circuits requiring amplification.

Amplifier Circuit

BC547 Amplifier circuit


BC547 Equivalent Transistors

In a few cases, you will ought to supplant the BC547 with an identical transistor due to accessibility or particular necessities. A few transistors can serve as bc547 identical transistor, counting:

Transistor
Type
Collector-Emitter Voltage (Vce)
Base Current (Ib)
Max Collector Current (Ic)
Package
Applications
BC547
NPN
45V
5mA
100mA
TO-92
General Purpose
2N2222
NPN
40V
5mA
800mA
TO-92
High Speed Switching
BC548
NPN
30V
5mA
100mA
TO-92
General Purpose
BC546
NPN
65V
5mA
100mA
TO-92
High Voltage Applications

These equivalents can be substituted in most circuits where the BC547 is used without any significant changes to the design.

Finding the Right Equivalent

When searching for a bc547 equivalent, ensure that the voltage, current, and gain (hFE) ratings are within the acceptable range for your project. While some equivalents may have slightly different parameters, they should work in most general-purpose applications.


BC547 Datasheet Information

To get complete technical details about the BC547 transistor, referring to the transistor bc547 datasheet is crucial. The datasheet includes key specifications such as the maximum voltage ratings, current limits, gain (hFE), power dissipation, and thermal characteristics. It also provides information on the internal structure and recommended circuit configurations.

BC547 Datasheet

Parameter
Value
Unit
Transistor Type
NPN
-
Vce (Collector-Emitter)
45
V
Vcb (Collector-Base)
50
V
Veb (Emitter-Base)
6
V
Ic (Max Collector Current)
100
mA
Power Dissipation (Pd)
500
mW
DC Gain (hFE)
110 - 800
-
Package Type
TO-92
-
Operating Temp Range
-55 to +150
°C
Vce(sat)
0.25
V
Transition Frequency (Ft)
300
MHz
Base Current (Ib)
5
mA

Interpret BC547 Datasheet

Understanding the datasheet can help you design circuits more efficiently. The key parameters to focus on include:

  • Vce (Collector-Emitter Voltage): Maximum 45V.
  • Ic (Collector Current): Maximum 100mA.
  • hFE (Current Gain): Typically between 110 to 800, depending on the operating conditions.

These values will help ensure that the BC547 can handle the voltage and current in your specific application.


Cost of BC547 Transistor

One of the engaging highlights of the BC547 transistor is its reasonableness. Whether you're buying a single unit or in bulk, the bc547 transistor cost is by and large very moo, making it available for specialists and experts alike. The bc 547 transistor price changes somewhat depending on the dealer and locale, but regularly, it costs fair many cents per piece when obtained in bulk.

Where to Buy BC547 Transistors

You'll effortlessly discover the BC547 online or at nearby gadgets stores. Websites like Amazon, eBay, and different gadgets component providers offer bulk packages for those building numerous ventures. When arranging to bc547 buy, guarantee you're obtaining from a trustworthy provider to maintain a strategic distance from fake or poor-quality components.


Conclusion

The BC547 transistor could be a flexible, cost-effective, and broadly accessible component perfect for exchanging and opening up little streams in low-power applications. With a strong understanding of its voltage characteristics, stick setup, and comparable transistors, you'll consolidate this NPN transistor into different ventures, extending from fundamental exchanging circuits to more complex intensification plans.

When looking for more detailed information on this transistor, always refer to the transistor bc547 datasheet for precise specifications. You can also find alternatives by checking for a bc547 equivalent transistor if you need something with slightly different properties or availability.

By understanding the essential principles of the BC547, you will be able to form effective and utilitarian circuits, whether you are a apprentice or a prepared electronics devotee.


Commonly Asked Questions

What is the voltage rating of the BC547 transistor?

The BC547 encompasses a most extreme collector-emitter voltage (Vce) of 45V.

What is the base-emitter voltage (Vbe) required to turn on the BC547?

The BC547 needs a base-emitter voltage (Vbe) of 0.6V to 0.7V to turn on.

What is the most extreme collector current (Ic) for the BC547?

The BC547 can handle up to 100mA of collector current (Ic).

Can the BC547 handle tall voltages?

The BC547 is appraised for up to 45V, but for higher voltages, the BC546 (65V) is way better.

What is the collector-emitter immersion voltage (Vce(sat)) of the BC547?

The BC547's Vce(sat) is around 0.25V when completely on.

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