High Current PCB Annular Rings: Minimum Size vs. Reinforced SizeAugust/12/2026In high-current PCB design, every detail matters when it comes to ensuring reliability and performance. The annular ring, the copper pad surrounding a plated through-hole, plays a critical role in both electrical connectivity and mechanical integrity. For low-current applications, standard annular...
High Current PCB Via Plating: 1mil vs. 2mil Thickness Reliability TestAugust/03/2026Via plating thickness represents one of the most consequential specifications in high current PCB design. When engineers design power distribution networks for automotive motor drives, industrial motor controllers, or server power supplies, the copper plating inside plated through-holes carries cu...
High Current PCB Bus Bars vs. Heavy Copper Traces: Cost and PerformanceJuly/25/2026Power electronics design presents unique challenges that differ fundamentally from signal-level circuit design. When current requirements climb above 10 or 20 amps, the humble copper trace that works perfectly for data signals becomes a liability. Engineers designing high current power delivery sy...
High Current PCB Testing: Thermal Imaging vs. 4-Wire Kelvin MeasurementJuly/22/2026High current PCB testing presents unique challenges that demand specialized measurement techniques. As electronics push toward higher power densities and increased current carrying requirements, accurate assessment of PCB current capacity, voltage drop, and thermal performance becomes critical for...
Bus Bar vs PCB Trace for High CurrentMay/21/2026A manufacturing engineer's reality check on when to use each approachThe Phone Call That Changed Our ApproachThree years ago, a client called me at 11 PM, stressed about production costs. They had designed a 200A power distribution board using heavy copper PCB traces. Their contract...
High Current PCB Connector Selection: Test Results and Real Performance DataMay/21/202612 months of continuous testing across 4 connector types. The data challenges conventional wisdom.The Test SetupWe tested 4 different high current connector types under identical conditions for 12 months. Each connector type was subjected to continuous current cycling, thermal stres...
IPC-2152 Current Carrying Capacity: The Definitive PCB Trace Calculator GuideMay/21/2026Why smart engineers stopped using trace width calculators—and started understanding the physicsWhy IPC-2152 Changes EverythingFor decades, PCB designers relied on IPC-2221 (formerly MIL-STD-275) trace width charts. The problem? Those charts were derived empirically in the 1950s...