Wiring/Cable
Wire gauge and ampacity tables, insulation types, shielded/twisted-pair/coax construction, color codes, and crimp terminals.
Open Wiring/Cable →— Electrical Reference Material
PCB/PWB
Footprint standards, trace width vs. current capacity, layer stackups, via types, copper weight, and component packages.
Open PCB/PWB →Symbols/Drawing Standards
Reference designator letter codes, ANSI vs. IEC schematic symbols, line type conventions, and one-line diagram basics.
Open Symbols/Drawing Standards →Connectors
Pin counts, current ratings, and mating cycle life by connector family — D-sub, JST, Molex, Deutsch, M12, terminal blocks, and mil-spec.
Open Connectors →Motors/Actuators
Stepper, servo, brushed/brushless DC comparison, NEMA frame sizes, sizing formulas, and motor constants.
Open Motors/Actuators →Grounding/EMI
Ground types, NEC bonding tables, shielding techniques, and an EMI/EMC standards reference.
Open Grounding/EMI →