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Payment Terms in Component Trading
Payment terms exist to allocate one risk: who carries it if the goods and the money do not move at the same time. What each method actually protects, which documents matter, and where Incoterms stop being relevant. Mehr lesen …
Inductor Ratings: Saturation and RMS
An inductor datasheet carries two current ratings that look interchangeable and are not. What saturation current and temperature-rise current each describe, and why comparing the wrong one to your load current is a common design failure. Mehr lesen …
Crystal Load Capacitance and ppm
A crystal has no single frequency of its own. It has a frequency at a stated load capacitance, and get that wrong and the error appears as drift, timing failures or a link that will not hold. How load capacitance and ppm work together. Mehr lesen …
Capacitor Selection and Derating
The value printed on a ceramic capacitor is not the value you get in the circuit. What the dielectric class does to capacitance, why DC bias is the biggest surprise, and where derating is standard practice. Mehr lesen …
TVS, Zener or Schottky: Which to Use
Three diodes that are routinely substituted for one another and do genuinely different jobs. What each is designed for, the four numbers that decide a transient suppressor, and the selection errors that only show up in the field. Mehr lesen …
How to Read SMD Markings on Passives
A 1 mm resistor body has no room for a part number, so the value is printed as a short code. How to decode the common resistor and capacitor markings, which parts carry none at all, and the polarity mark that catches people out. Mehr lesen …
Connector Selection: Pitch and Current
A connector is chosen on four numbers, and the headline one is usually the most misleading. How pitch, current rating, mating cycles and plating decide whether a connector suits the application — and where each is routinely over-read. Mehr lesen …
ESD Control for Sensitive Components
A discharge you cannot feel is enough to damage a modern component, and the failure may not appear for months. How ESD damage actually occurs, what each packaging grade does, and the handling habits that matter most. Mehr lesen …
Tape and Reel, Tubes, Trays and Bulk
Packaging is not a shipping detail — it decides whether a part feeds your machine automatically or lands on someone's desk. What tape and reel, tubes, trays and bulk actually mean, and how to state your requirement so it is quoted correctly. Mehr lesen …
MSL and Dry Packing: When to Bake
Moisture sensitivity level decides how long a part can sit open on the line before it must be baked. This guide covers what the level means, how to read a dry-pack label, when baking is required, and the baking method that damages most reels. Mehr lesen …
How to Send a BOM for Quotation
Most of the delay in component purchasing happens before the enquiry is even sent. A bill of materials that answers six questions can be quoted in one pass; one that leaves them open typically costs three rounds of email. Mehr lesen …
RoHS, REACH and Lead-Free Finishes
RoHS compliance, a lead-free terminal finish and a REACH declaration are three different things that are often asked for as one. This guide separates them, and covers what to request from a supplier and where the labelling can mislead. Mehr lesen …
Obsolete Parts: How to Find a Safe Alternative
When a part number reaches end of life, the choice is never simply "find a drop-in". This guide covers how obsolescence is signalled, the five options open to a buyer, and the checks a substitute must pass before it goes anywhere near a production board. Mehr lesen …
How to Read a Date Code and Batch Number
Date codes tell you when a part was made, and batch numbers let you trace it. Reading them correctly is one of the cheapest quality checks available at goods-in — and a mixed reel is one of the clearest warnings that something is wrong. Mehr lesen …
MOQ, Price Breaks and Lead Time Explained
A quotation is a set of trade-offs, not a single number. This guide explains what MOQ, price breaks, packaging multiples and lead time actually mean, and how to ask for a quote that can be answered in one pass instead of three. Mehr lesen …
How to Read a Part Number and Find Equivalents
A part number is not one number — it is a base device plus a stack of suffixes that describe package, tolerance, temperature grade, plating and packing. Reading those suffixes correctly is what separates a valid substitute from an expensive mistake. This guide covers how to break a number down, and the checks that should pass before you accept a replacement. Mehr lesen …
IC Package Types: SMD, THT, QFN, BGA and SOP
Package type decides how a part is assembled, how much board space it takes, how heat leaves the device and how easily a finished board can be inspected. This guide covers the through-hole and surface-mount families you will meet in a bill of materials, together with the practical trade-offs behind each one. Mehr lesen …
Counterfeit Electronic Components: Checklist
Counterfeit ICs and passives reach buyers through brokers, reclaimed e-waste and re-marked scrap. This checklist covers the warning signs a buyer can catch at goods-in, the inspection methods ranked from weakest to strongest, and the purchasing rules that remove most of the risk before an order is ever placed. Mehr lesen …