Technical articles, selection guides and industry insights about electronic components, sourcing and PCB design.
Analog ICs and power discretes are back on allocation. By Q2 2026, lead times for STM32-family MCUs and TI MSP430 variants have stretched past 26 weeks at major franchised distributors, and fab capacity booked through TSMC's N28 and UMC's 55 nm nodes shows no relief before Q4. Engineering teams that remember the 2021–2023 cycle know the playbook, …
Most datasheets run 30 to 80 pages. No engineer reads them cover to cover, and you should not either. What matters is knowing which sections carry the data that will make or break your design. Here is the 10-minute path through any component datasheet, focused on the eight parameters you cannot afford to skip.
Choosing the wrong connector costs more than a re-spin. It costs field downtime, safety recertification, and lost production. This guide breaks industrial connector selection into three decisions: environmental sealing (IP rating), electrical capacity (current per contact), and signal/power topology (number of poles). Pick these three correctly, a…
A 01005 capacitor occupies 0.4 mm × 0.2 mm of board real estate, roughly the cross-section of a human hair. Fifteen years ago that package was exotic; today Yageo, Murata, Samsung, and Walsin ship 01005 MLCCs and chip resistors by the billion for wearables, hearables, and implantable medical devices. The question for PCB designers is whether the a…
Buying ICs from Shenzhen, PCBs from Malaysia, or passives from a UK distributor post-Brexit means customs will eventually ask for paperwork you did not prepare. Here is what you need: VAT treatment by import scenario, TARIC classification for common electronic parts, the non-negotiable documents, and how to avoid shipments held for weeks while you…
Most engineers send a part number list and wait. Procurement teams that get it right send a structured RFQ and close the gap between BOM cost estimate and landed price before the design review starts. The difference is what information you include, how you format it, and who you send it to.
You find the exact capacitor your design needs. Voltage rating and tolerance are perfect, the price is reasonable. Then the MOQ is 4,000 pieces when your prototype needs 50. Minimum order quantities are the most common friction point in electronic component sourcing. They are not arbitrary: packaging economics, factory minimums, and distributor co…
A part goes EOL six months before your production run. The sole-source op-amp is on 52-week lead time. Or procurement flags a $14 IC and asks if the $3.20 pin-compatible alternative will work. Cross-referencing means understanding which parameters can drift and which cannot, then verifying the replacement won't fail at temperature extremes or inje…
Selecting the wrong AC/DC power supply can cook your PCB, inject noise into sensitive analog front-ends, or force a late-stage respin when you realize the 65 W brick doesn't leave enough headroom at 70 °C ambient. This guide walks through the three decisions that matter most: wattage sizing, ripple tolerance, and topology, with real numbers and pa…
Most power electronics engineers reach for N-channel MOSFETs by default. The reason is physics: electrons move through silicon about 2.5x faster than holes. But the decision is about topology: where the switch sits, what voltage the gate sees, and how much heat the PCB can dissipate.
A BOM line saying "10kΩ, 0603, 1%" hides dozens of variants across manufacturers, with TCR figures from ±25 to ±200 ppm/°C and 10× price spreads. This guide covers the three parameters that determine which SMD chip resistor belongs on your board, and which belongs in the cost-optimization bin.
Pick the wrong capacitor and your voltage rail oscillates. Pick the right one and the board runs quiet for a decade. The choice between ceramic (MLCC) and aluminum electrolytic capacitors comes up in nearly every power delivery design. Each type dominates a different corner of the capacitance/voltage/frequency triangle.