1.1 Basic Recognition Mnemonics A circuit board can change in countless ways; the combination of components is key. Resistors and capacitors are the most common; understanding their symbols is essential. Resistance changes and capacitor leakage; remember the basic characteristics. Inductance and voltage changes can be checked; measure the PN junction of transistors. MOSFETs can be … Read more
Many people have experienced making mistakes in PCB packaging—either making it too large or too small, or even having components obstructed, which leads to issues when soldering components after the PCB is manufactured, sometimes requiring manual wire connections; in severe cases, it may even result in the entire board being scrapped. For example, the U8 … Read more
Author | Wo Ting Xiao Xiao Zhu The PCB market scale continues to expand.ChipMOS Technologies’ annual report provides an optimistic assessment of the PCB industry development:According to Prismark statistics, in 2024, the global PCB total output value will reach $73.565 billion, a year-on-year increase of 5.8%. In the medium to long term, the global PCB … Read more
Introduction Resistors are one of the most fundamental components used in printed circuit boards (PCBs). They are passive devices that impede the flow of current in a circuit. PCB resistors can control, divide, stabilize, and connect circuits, among other functions. They come in various resistance values, sizes, power ratings, and tolerances to meet different circuit … Read more
Mfr. Part # Mfr. Stock TDA1519CCU NXP 422 TJA1042T/1J NXP 460 PCF8563T/5,518 NXP 491 MC34673AEPR2 NXP 876 BFU730F,115 NXP 459 BZT52H-B3V9 NXP 602 TJA1044GT/3Z NXP 2,148 PCA8565TS/1,118 NXP 421 TJA1050T/CM,118 NXP 825 TJA1145T/FDJ NXP 2,402 TJA1041AT/CM,118 NXP 422 PC824M201JDH20J NXP 502 BB172X NXP 492 PUMD13,115 NXP 3,096 PDTC123JT NXP 10,071 TJA1021T/20/CM,118 NXP 2,462 PCA9555PW NXP … Read more
Today, someone sent a picture to Lao Wu, asking about the several white translucent substances on the fixed seat of the PCB shown in the image. He didn’t know what they were or why they appeared on the PCB. I looked at the picture and thought it should be hot melt adhesive used for fixing … Read more
This article will deeply compare PCBA and PCB! We will start with their basic definitions and principles, exploring the key differences in design, manufacturing, and practical applications. You will learn how PCBs are constructed and how they differ from fully assembled PCBAs. We will also explore real-world application cases across various industries, discuss manufacturing and … Read more
The inverter circuit board is a core component of the inverter, responsible for controlling and regulating its operation. This article will provide a detailed introduction to various components on the inverter circuit board, including resistors, capacitors, inductors, diodes, transistors, IGBTs, optocouplers, and crystal oscillators. 1. Resistors Resistors are commonly used components on circuit boards, used … Read more
The S-400 air defense missile system (Russian: С-400 Триумф, NATO designation: SA-21 Growler) is designed to destroy electronic jamming aircraft, radar search and command (early warning) aircraft, reconnaissance aircraft, strategic and tactical aviation aircraft, tactical and operational-tactical ballistic missiles, medium-range ballistic missiles, hypersonic targets, and other modern and prospective aerial threats. To effectively counter attacks … Read more
Click the blue text to follow us In the PCBA processing industry, the circulation of counterfeit electronic components not only leads to a decline in product quality but may also pose serious safety risks, affecting the company’s reputation and damaging customer trust. Therefore, identifying and rejecting counterfeit components has become a key step for PCBA … Read more