Electronic Glossary

What is Ground?   In electronics and electrical engineering, it is by convention we define a point in a circuit as a reference point. This reference point is known as Ground (GND) and carries a voltage of 0V. Voltage measurements …

What Is Ground Plane in PCB?   The Ground Plane in printed circuit board (PCB) is a large area or layer of metal, like copper foil or constantan, connected to the circuit’s ground. Often designated as a VCC in PCB …

The Global System for Mobile Communications (GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation (2G) digital cellular networks used by mobile devices such as mobile phones and tablets. It was …

A surface mount lead that is formed outward from a package parallel to the pcb solder pad.

What is a Half Wave Rectifier?   A Half Wave Rectifier is defined as a type of rectifier that only allows one half-cycle of an AC voltage waveform to pass, blocking the other half-circle. Half-wave rectifiers are used to convert …

What Is Halogen Free PCB?   Halogen Free PCBs are those printed circuit boards are manufactured with halogen-free PCB materials with halogen-free methods, and meet the relative standards. Like the RoHS lead free requirements, halogen free standards require contract manufacturers …

Hard Gold is an electrolytic process and has hardeners in it for durability. It is plated over a nickel finish and may also be referred to as Deep Gold. (The term Deep Gold is used to indicate that full panels …

HASL, Hot Air Solder Level is a common finish type for PCBs. The PCB panel with exposed copper is lowered into a liquid bath of solder then quickly raised out of the bath and moved passed jets of hot air …

What’s Hatch Impedance in Flex PCB Circuit?   When crosshatching (or meshed) return paths are deployed on flex PCBs and rigid-flex boards rather than the solid copper pour return paths of traditional rigid PCBs, the calculation of impedance of stripline …

A hard disk drive (HDD), hard disk, hard drive, or fixed disk is an electro-mechanical data storage device that stores and retrieves digital data using magnetic storage and one or more rigid rapidly rotating platters coated with magnetic material. The …