Windell Oskay, Eric Schlaepfer by Open Circuits The Inner Beauty of Electronic Components-No Starch Press (2022)

Author:Open Circuits The Inner Beauty of Electronic Components-No Starch Press (2022)
Format: epub

The shell of the USB-A plug protects the gold-plated contact pins within and guides the connector into a jack. A basic USB cable contains only afew wires for signal and power. Newer "SuperSpeed" USB cables are much more complex.

USB Jack The gold-plated contact fingers in the USB jack act like springs, pressing down tightly against the flat metal blade contacts inside the plug. Spring fingers on the outer shell lock into recesses on the plug, helping to prevent the cable from falling out after it’s been 170 Outer shell spring finger Plastic overmold Shell of plug Gold-plated contacts Insulation displacement contact Shell of jack Blade contact plugged in. The “clicking” sensation you feel when you plug your cable in comes from these spring fingers. If it ever feels like it takes several tries to plug in a USB cable, that’s because of these spring fingers. (You had it right the first time; they were just a bit too stiff.)

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