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Electronic Parts
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As beginners to electronic parts and the construction of electronics projects, sometimes one may just take all the information provided in the magazines and start to build the project. The schematics and PCB provided may not be understood fully and if there is a mistake in the information, one may not be able to troubleshoot the printed circuit board. Therefore, it is important that one understands why each electronic parts or electronic component is used and its unique characteristics.
It is also important to know what electronic parts are similar so that in the event that the particular
part is no longer available in the market, one can find similar or equivalent parts as its
substitution.
The list below will show in detailed some of the major components that are usually used in the construction of electronics project. It will describe the fundamentals of each electronic parts and its applications. Information as to the type of tests that each part should be stressed to will also be provided. Some of the components are diodes, speakers, connectors, batteries, solder, relays, seven segment displays, transformers, inductors, liquid crystal displays, transistors, operational amplifiers, capacitors, potentiometer, heatsinks, fuse, thermistors, resistors, LEDs and resonators. Other parts will be added from time to time, so please come back to this site whenever you need to.
Batteries
The primary battery is intended for one time use
only and is disposed after the charge has dropped to a level that cannot be used. The secondary battery can be recharged
many times and is reusable.
Capacitor Types
An introduction to fundamental of capacitors. Electrolytic, ceramic, tantalum, metallized polyesther and safety types are introduced here.
Digital Light Sensor
In applications such as lighting controls, heating ventilation and air conditioning controls or temperature controls system,
there are times when you will need to adjust the control parameters based on the intensity of the ambient light. You may want to consider using Intersil ISL29001 digital light sensor.
Digital Temperature Sensor
The recent decade has seen the use of integrated circuits devices in many temperature controlled related systems because they are much smaller, provide a more accurate measurement and simpler to be integrated to other digital control devices.
Diodes
Diode is a common device in most electronics devices. This page discussed their basic characteristics and applications in electronics project.
Electroluminescent Lighting and Drivers
Electroluminescent lighting is achieved by using an EL lamp which is a piece of plastic material coated with a phosphorous
material. When a high voltage of 40V or greater is applied across this material and reverse, it will emit light. Fundamental of EL and driver are provided here.
Electronic Project Enclosures for housing assembled PCB
Electronic Project Enclosures are often needed to house assembled printed circuit board and other electronic parts. Some basics types are provided here.
Fuse
Terminology and functions of Fuse.
Includes also some basic guidelines in the selection of fuse for certain application.
Heat Sink Characteristics
When a junction temperature of a semiconductor rises above its maximum allowable temperature, there is a need to
dissipate this temperature or else the device will breakdown. One of the common method used to dissipate the heat is using
a heat sink.
IGBT (Insulated Gate Bipolar Transistor)
The fundamental of IGBT and its characteristics are provided here. It has become a common device in motor controls in recent years.
Inductor or Coil
The fundamental of inductor, its characteristics and their applications in electronic devices are provided here.
LCD
An introduction to liquid crystal display which is now being widely used in most of the electronics project.
LEDs
Introduction to LEDs, its fundamentals and applications in various electronic circuits. It is fast replacing incandescent bulbs in many applications.
Microcontroller
The use of microcontroller as a major part of an electronic device has become indispensable these days.
Operational Amplifier
The Operational Amplifier is a differential amplifier having a large voltage gain, very high input impedance and
low output impedance.
Relays
Mechanical relays are used in various types of applications. The DC coil voltage can range from
3V to 48V DC and AC coil can range from 6V to 240V AC. Its contact ratings can range from
0.01 Ampere to 30 Ampere.
Resistors
An introduction to carbon film resistors and their typical characteristics. It is one of the most common device that is used in almost every electronic device.
Seven Segment Displays
Fundamentals of Seven Segment Displays, its applications and drivers.
Thermistors
Thermistors' fundamentals and Applications.
Thyristors or SCR
Thyristors are switching devices based on PNPN structure. They are very reliable and have current ratings up to a few thousands amperes and voltage ratings up to 5000V.
Transformers
Fundamentals and construction of Tranformers.
Transistors
Introduction To Transistors. A brief history and typical characteristics of transistor and graphs are shown here.
Triac
A triac consists of two SCR connected in
inverse parallel where the gates are connected together. The connections are labelled as MT1(Main Terminal 1),
MT2(Main Terminal 2) and G(Gate).
Varistor as a protective electronic parts
Varistor is a voltage dependent device that clamp a voltage to a certain level and absorbed the energy to prevent damage to other parts of a circuitry.
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