JLCPCB Blog

PCB Structures & Fundamentals

Basic Electronics Components: 10 Essential Parts Every Beginner Must Know

Basic electronics components are the fundamental building blocks of any electronic circuit. The most common components include resistors, capacitors, inductors, diodes, and transistors, each playing a specific role in controlling current, storing energy, or processing signals. In this beginner-friendly guide, we'll walk through 10 essential electronic components and explain how they work in real circuits. Whether you're just getting started or need a quick refresher, this guide will help you understan......

Nov 28, 2024

Design for Manufacturing

How to Avoid Shorts and Open Circuits in Dry Film Etching Process

When utilizing the dry film etching process, it is crucial to take precautions to prevent short circuits and open circuits in printed circuit boards (PCBs). JLCPCB emphasizes specific considerations to ensure the integrity and functionality of PCB designs. This article provides guidelines for maintaining adequate trace width and spacing as well as utilizing hatched copper pours effectively to avoid defects during the dry film etching process. Maintaining Adequate Trace Width and Spacing JLCPCB employs......

Aug 21, 2023

Components & Sourcing

TQFP vs LQFP: Differences, Specs, Applications & Which to Choose

Key Takeaways Quick Selection Guide Use the following guidelines to choose the right package for your project: Prototyping & Early Testing → LQFP Easier soldering, inspection, and rework Mass Production → TQFP Better suited for automated assembly and compact layouts High Pin Count Designs → LQFP Longer leads improve yield and solder reliability Ultra-Thin & Space-Constrained Products → TQFP Lower profile enables slimmer device designs The TQFP (Thin Quad Flat Package) and LQFP (Low-Profile Quad Flat P......

Jan 30, 2026

Components & Sourcing

Everything You Need to Know about BGA Technology in PCB Assembly

Ball Grid Array (BGA) is a leadless surface-mount package widely used in high-density and high-speed PCB designs. It features an array of solder balls on the underside, providing high I/O density, better signal integrity, and thermal performance. This guide covers what is BGA, different types of BGA packages, advantages and disadvantages, assembly requirements, inspection methods, and common defect solutions, helping engineers make informed decisions in PCB manufacturing. What is Ball Grid Array (BGA)......

Feb 27, 2024

Components & Sourcing

Capacitor vs Battery: Key Differences, Energy Storage, and When to Use Each

Key Takeaways Capacitors deliver high power in microseconds but store very little energy Batteries hold large amounts of energy but respond more slowly to load transients Capacitors are ideal for filtering, decoupling, and transient suppression Batteries are best for sustained, long-duration power Are capacitors better than batteries? Neither is universally superior - they are optimized for different roles. Capacitors excel in power delivery and speed; batteries excel in energy storage and runtime. Th......

Apr 17, 2026

Surface Finishes & Coating

Copper Coin PCB : A Solution for Heat Dissipation

In the fast-evolving electronics industry, devices are becoming smaller, faster, and more powerful, while also coming in a compact size. Power is no longer a problem, but packing the device into a smaller form factor presents a serious challenge. Whether we are working on a power converter, LED lighting module, automotive ECU, or 5G communication device, the excessive heat reduces performance. It shortens the component lifespan. This is where Copper Coin-Embedded PCBs become a smart, modern solution f......

Apr 17, 2026