Reference
About the Reference Section — Essential Technical Resources
The Reference section contains a focused selection of essential engineering materials that support practical circuit design, component selection, and troubleshooting. It serves as a quick-access knowledge base for engineers who need accurate information without searching through fragmented sources. Here you can find datasheet libraries, application notes, design guidelines, pinouts, formula sheets, PCB layout rules, semiconductor theory, and practical calculators used in everyday design work.
Our goal is to keep this section simple, structured, and reliable — a place where both beginners and experienced engineers can find authoritative information instantly. The Reference library is especially useful when you need to verify a parameter, refresh a concept, or check recommended practices in analog, digital, power, RF, and embedded design.
Each page is continuously updated as new resources become available. Whether you are studying a particular component family, optimizing a power stage, or working on a prototype, this reference hub is designed to save time and improve engineering workflow.
- Schematic Symbols (IEC & ANSI) — Master Reference — common IEC / ANSI symbols for resistors, capacitors, diodes, transistors, op-amps and more.
- Component marking codes — resistor color codes, capacitor markings, diode series codes and other quick tables.
- SMD markings — decoding 2–3 character codes on SMD transistors, diodes and ICs.
- Package and case codes — TO, SOT, SOD, SOIC, TSSOP, QFN, LQFP and other package names with basic dimensions.
- Wire and cable codes — AWG cross-sections, insulation ratings and common color conventions.