5 Common Applications of Printed Circuit Boards You Must know

A printed circuit board (PCB) is a circuit mounted on a board that is used to route signals and power. They are used in science, technology, engineering, and math (STEM) industry due to their wide range of benefits. PCB is basically one of the key concepts in electronics that are used in our daily lives across a wide range of industries. PCBs are used to connect electronic components within a product. PCBs also have various types such as single-sided, double-sided, or multilayer. PCBs are found everything from small electronic devices to huge machinery. Keep reading to find out the most common application of PCBs.

Consumer Electronics:

Yes! Printed circuit boards are in your home too. All of your home appliances from your fridge to your microwave contains PCBs. The computers and smartphones you use daily require printed circuit boards to function. As the laptops and smartphones are becoming smaller and portable, they require smart PCBs that contain higher volume of connections. A wide range of consumer products that contain PCBs includes communication devices such as smartphones, smartwatches, tablets, radios, and computers, televisions, and video game consoles. Home appliances including refrigerators, microwaves, and coffee makers all rely on PCBs. MJS designs provide PCB designing services to all the sectors of consumer electronics industry.

Medical Devices:

Healthcare sector is increasingly utilizing the PCBs in its devices used for diagnostics, treatment, monitoring, and more. These boards are also used for implants and emergency room monitors. PCBs are used in medical imaging systems such as CT, CAT, and ultrasonic scanners. Heart rate, blood glucose, and blood pressure monitor also use PCBs. Pacemakers, infusion pumps, and patient-controlled analgesia also require PCBs to function reliably and accurately.


Light-emitting diodes (LEDs) are popular lightning technology used for residential and commercial lighting. PCBs play a significant role in LED applications. The role of the printed circuit board is to transfer the heat away from the bulb which increases the average life of LEDs. The application of PCBs in LEDs allow for more compact and low-cost designs as they are able to handle the high levels of heat transfer. That is why LEDs are famous for their compactness, long-life, and energy-efficiency. LED PCBs can be found in residential lighting, medical lighting, computer displays, automotive displays, and storefront lighting. As applications of LEDs are expanding, PCB CAD layout will continue to play a prominent role in lighting.

Automotive Components:

PCBs have tremendous uses in the automotive industry as they enable advanced features to make driving easier and safer. PCBs also perform reliably when used in safety features of the car. Entertainment and navigation systems, and stereos use PCBs. The electronics powered by PCB are used to control the basic functions of the car. Other control systems such as fuel regulators and engine management systems also integrate PCBs. Car sensors also utilize these circuit boards.

Aerospace Components:

Applications of PCBs also extend to aerospace equipment, including planes, satellites, space shuttles, and radio communication systems. The aerospace components that utilize PCBs include power supplies, monitoring equipment, and communication equipment.
Hence, the applications of PCBs are widespread across multiple industries. Some more sectors that use PCBs are safety and security equipment, telecommunications equipment, industrial equipment. They also have application in military, defense, and maritime sectors as well.