Emily Roberts
Electronics Sourcing SpecialistEmily Roberts is an electronics sourcing specialist with experience in component procurement, supplier evaluation, and lifecycle management. Her articles focus on helping engineers and purchasing teams identify reliable parts, compare alternatives, and reduce supply chain risk. She writes about electronic component availability, obsolete and hard-to-find parts, datasheet verification, manufacturer comparison, RFQ preparation, and practical sourcing strategies. Emily’s content is especially useful for OEMs, contract manufacturers, and buyers working with complex BOMs or urgent procurement requirements.
Articles by Emily Roberts 6
Last-Time-Buy Decisions: Stockpile, Bridge Buy, or Redesign?
An EOL notice with a last-time-buy deadline forces one of three choices: lifetime stockpile, bridge buy, or redesign. This framework covers the demand math, the hidden costs, and the decision criteria for each.
RF Wireless Components for Long-Range IoT: Transceivers, RF Switches, Front-End Parts and Interface ICs
Long-range IoT is a system design problem. The RF transceiver or module is central, but it does not work alone. RF switches, front-end components, antennas, interface ICs, power management, sensors, protection devices and connectors all influence real-world performance. Engineers should choose RF wireless components by starting from the application requirements and then building a complete link, power and interface strategy around them.
What Is a Field Effect Transistor? FET Types, Working Principle, Applications, and Selection Guide
A Field Effect Transistor, commonly called a FET, is a voltage-controlled semiconductor device that uses an electric field to control current flow between two terminals called the source and drain. Unlike bipolar junction transistors, which require input current at the base, FETs are controlled mainly by voltage at the gate terminal. This gives FETs high input impedance, low control power, and strong advantages in switching, amplification, power management, RF circuits, sensor interfaces, and modern integrated circuits.
Circuit Board Component Identification: How to Identify PCB Components by Markings, Shape, and Codes
Circuit board component identification means recognizing PCB parts by their reference designators, physical appearance, body markings, polarity marks, package type, and electrical function. The fastest way to identify a component is to start with the PCB silkscreen, match the reference letter to a component type, inspect its shape and package, read any value or top marking, then confirm the result with a datasheet, schematic, BOM, or measurement tool. This guide explains how to identify common PCB components such as resistors, capacitors, inductors, diodes, transistors, MOSFETs, ICs, connectors, fuses, relays, crystals, and test points. It also includes practical examples, common marking codes, polarity clues, mistakes to avoid, and a replacement sourcing checklist.
How to Reduce BOM Sourcing Risk for Electronic Component Procurement
A practical guide for reducing BOM sourcing risk, including lifecycle checks, lead-time review, alternates, compliance, traceability, and RFQ preparation.
Electronic Component Lead Times, Pricing, and Supply Chain Risk Explained
Understand electronic component lead times, how they differ from stock availability, why pricing changes, and how buyers can reduce supply chain risk.