Board level components and electronic devices have become an indispensable element of daily human life and have improved the comfort and convenience of individual lives. Electronic devices have many uses in the modern world, from aviation to medical and healthcare industries. In reality, the electronic and computer revolutions are inextricably linked.

Most devices have small electrical circuits that can operate machinery and analyze data. To put it simply, electronic circuits are the lifeblood of numerous electrical gadgets. This article goes over board level components used in electrical circuits and how they operate.

What Are the Board Level Components?

A board level component is a circuit board that links a device’s electrical components. To work, an electronic device, such as a mobile phone, computer, or even a light switch requires a level of interconnection between the electrical components, which the printed circuit board (PCB) offers through layers of copper circuitry.

Different Kinds of Board Level Components

Board level components are made up of a range of distinct electrical components, each of which is critical to the operation of the device to which it will be attached. These components include capacitors, fuses, resistors, and transistors, all of which contribute to a smooth-running device; if one of these components fails, the entire board ceases to operate, affecting the operation of the product itself.

However, what are the most prevalent components, and what do they perform? Here are seven of the most critical and commonly used board level components, along with an explanation of why they are vital.


Capacitors are the most common component. Capacitors store electrical charge on the board and release it when more power is required elsewhere in the circuit. They usually collect opposing directions on two conducting layers separated by an insulating substance.


A diode is a device in a circuit that permits electrical current to flow in only one direction. You can use it to prevent electricity from flowing in the wrong direction, which could cause harm to the board and device. The most common diode is the LED (Light Emitting Diode), which emits light, as the name implies.


Inductors are similar to capacitors in that when current passes through them, they store energy in the form of a magnetic field. They are frequently used to suppress internal board signals, such as interference from another electrical device or equipment.


Resistors are one of the most important and widely used board components. They send an electric current to generate a voltage and waste electric power as heat. They may be made of a variety of materials and are color coded to identify their resistance rating.


These devices detect changes in ambient conditions and create an electrical signal corresponding to the shift observed, which is subsequently sent to the other circuit board components. Sensors, like a transducer, transform a physical element, such as light motion, air quality, or sound, into electrical energy.


Transformers frequently transmit electrical energy from one circuit to another by increasing or decreasing voltage.


A transistor is an amplifier that switches or controls electronic signals on a circuit board. There are various types of transistors, but the most common is the bipolar transistor, which has three pins: the base, the collector, and the emitter.

What Is a Board Level Reliability Test?

Interconnect reliability testing is also known as Board Level Reliability (BLR). Essentially, this is a method for evaluating the quality and stability of solder connections after an IC package has been mounted to a PCB. The strength of the solder junction during thermal cycling is crucial for various electronics packages such as IC and area array packages (BGA, CSP, etc.). BLR typically requires thermal cycling conditions ranging from -40°C to +125°C. It is done to maintain consistent package performance under harsh operating circumstances.

Why Are Board Level Components Important?

Electronic components are an essential part of the manufacturing process for electronic devices. The high quality of the components utilized in the manufacturing process may easily influence your industry’s future and success. Quality components eventually improve the quality and durability of the finished product.

Electronic gadgets impact every area of human life, from chatting with loved ones across countries to brewing a hot cup of coffee. But what causes these technological devices to do seemingly time-consuming activities in a matter of minutes? All electronic equipment is built on tiny electronic circuits. Reading about the various electronic circuit board level components will help you grasp their function and significance.