I am Kevin Chen, I graduated from University of Electronic Science and Technology of China in 2000. I am an electrical and electronic engineer with 23 years of experience, in charge of writting content for ICRFQ. I am willing use my experiences to create reliable and necessary electronic information to help our readers. We welcome readers to engage with us on various topics related to electronics such as IC chips, capacitors, resistors, inductors, circuit breakers, diode, transistor, module, relay, opticalcoupler, connectors, PCBs, etc. Please feel free to share your thoughts and questions on these subjects with us. We look forward to hearing from you!
Image source Nerokas The 2N2222 is a popular NPN bipolar junction transistor used for general-purpose low-power amplifying or switching applications. It is designed for low to medium current, low power, and medium voltage, and can operate at moderately high speeds. It was originally introduced in the late 1960s by Motorola Semiconductor and is still in…
Image source InstrumentGuru A laser sensor is a device that uses lasers to measure distances, detect objects and monitor movements. It can be used for various applications such as range finding, speed detection, collision warning and environmental monitoring. Laser sensors are used in a variety of fields ranging from industrial automation to medical imaging. In…
Image source: learn about electronics Diodes are essential components in a wide range of electrical and electronic devices. They are used to control the direction of electric current and can also be used as rectifiers, allowing AC signals to be converted into DC signals. It is important to test diodes regularly to make sure they…
Image source: Sourcing Finding obsolete electronic component suppliers can be a daunting task. With the ever-changing technology landscape, it can be difficult to keep up with the latest trends and find reliable suppliers for obsolete components. Fortunately, there are a few tips and tricks that can help you locate the right supplier for your needs. In…
MOSFET image source Apongee MOSFETs (Metal Oxide Semiconductor Field Effect Transistors) are a type of transistor used in many electronic circuits. They are used to control the flow of current in a circuit and can be either N-channel or P-channel. But what are the differences between them? How are they used and does the difference…
Image source Earnhardt A starter and an alternator are two different components of a vehicle’s electrical system. The starter is responsible for starting the engine, while the alternator is responsible for generating electricity to power the vehicle’s electrical components. Are you planning to buy any of these two components? It will be good to know…
Image source Apogee The 18650, 26650, and 21700 batteries are all types of rechargeable lithium-ion batteries. They are commonly used in a variety of applications, such as flashlights, power tools, and electric vehicles. Each type of battery has its own unique characteristics that make it suitable for different applications. In this article, we will discuss…
DPDT image source Elprocus A DPDT relay is a type of electrical switch that is used to control two separate circuits using only one switch. It stands for Double Pole Double Throw, which means that it has two sets of contacts that can be switched between two different positions. This type of relay is commonly…
Image source Sciencing A light sensor is a device that detects the presence or absence of light. It is a device that converts light energy into electrical energy. Light sensors are used in a variety of applications, such as security systems, street lights, and cameras. They can also be used to measure the intensity of…
Image source Jak What comes into your mind when you hear of ‘polarity’ in electrical components? Most likely you would think of poles. The device or component is likely to have two defined poles. Based on the polarity, capacitors are classified into two classes; polarized and non-polarized. We all know that the primary function of…