A shunt resistor circuit can be correct on the schematic and still produce inconsistent readings on assembled boards. At milliohm resistance levels, the PCB copper, pad entry, solder joints, temperature, and measurement nodes can contribute error that the basic calculation never shows. The safest approach is to treat the shunt resistor, PCB layout, BOM, and … [Read more…]
A first article is valuable only when it is built to the released baseline, inspected against defined characteristics, and held for a documented decision. PCB assembly first article inspection is a documented production gate that checks whether the first build represents the released design and manufacturing package before more units are allowed to proceed. It … [Read more…]
What Bay Area PCB Buyers Actually Need from a Manufacturer Local Prototype, Remote Production, or a Hybrid Supply Plan? Compare Engineering Response Before Comparing Location Separate Bare PCB, PCBA, Sourcing, and Testing Scope Normalize Bay Area PCB Quotes by Total Landed Cost Plan Prototype Speed Without Sacrificing Production Transfer Check Material, Stackup, and DFM Assumptions … [Read more…]
The right contract PCB assembly manufacturer is the one that accepts clear responsibility for material sourcing, assembly, inspection, testing, traceability and engineering changes—not simply the company with the shortest quotation. Buyers should define those boundaries before the first build because most expensive PCBA problems appear in the gaps between the BOM, placement data, component availability, … [Read more…]
BNC is usually the better choice for fast cable changes, accessible test connections, and 75-ohm video systems, while SMA is usually better when compact size, threaded retention, or higher-frequency performance matters. That quick rule is useful, but it is not enough to specify a connector. The correct choice must also match impedance, cable type, mating … [Read more…]
Humidity doesn’t just make you uncomfortable. It can also shorten the life of your favorite electronic devices. Whether you carry your phone outside on a hot, muggy Indiana afternoon or use your laptop in a damp basement, moisture creates real risks for sensitive electronics. The good news is that a few simple habits can help … [Read more…]
A solder float test PCB evaluation requires a production-representative coupon, controlled molten-solder exposure, and PTH inspection against an invoked acceptance specification. A record that says only “288°C for 10 seconds, pass” omits moisture conditioning, solder contact, exposure count, hole construction, section location, and the disposition criterion. The test creates a steep temperature gradient from the … [Read more…]
Long lead times, supply chain disruption and reduced visibility across global manufacturing networks have prompted many electronics businesses to reassess where products are made. For years, offshore production offered attractive unit costs and access to large-scale manufacturing capacity. Today, businesses are taking a broader view of manufacturing performance. Reshoring electronics manufacturing is no longer driven … [Read more…]
Learning how to discharge a capacitor safely means removing stored energy through a controlled resistance and then verifying the remaining voltage with a correctly rated meter. Disconnect every energy source first. Do not bridge the terminals with a screwdriver or bare wire; the resulting current can create an arc, damage the capacitor or PCB, and … [Read more…]
Internet of Things (IoT) products depend on far more than connectivity and software functionality. Behind every connected device sits a printed circuit board (PCB) that must support reliable operation, efficient power consumption, wireless communication and long-term durability. As IoT hardware becomes smaller and more capable, PCB manufacturing plays a bigger role in determining whether a … [Read more…]