Manufacturing Knowledge Base
Reference material for engineers and buyers sourcing machined components: tolerances that hold in practice, what actually drives price, and where a design choice costs 30% more than it needs to.
This library answers the questions that arise before a purchase order: what a tolerance value actually means, which material grade suits an application, how supplier capability should be verified, and which design features add cost without adding function. Every article states its scope and its limits, because a definition that pretends to cover everything is not useful for a decision.
What Is a Power MOSFET? Definition and Use
A power MOSFET is a voltage-controlled switch for currents above 1 A. How the structure works, what RDS(on) costs, and which voltage class fits which circuit.
Read articleHow to Read a MOSFET Datasheet Without Being Misled
The six numbers that decide whether a MOSFET works in your circuit, and four ways datasheets flatter a part: conditions, temperature, sampling and axes.
Read articleMOSFET, IGBT or SiC: Which Switch to Choose
A decision guide by voltage, current and frequency, with the crossover points where each technology wins and the losses that decide them.
Read articleSuper Junction vs Planar MOSFET
Super junction MOSFETs cut on-resistance by 3–5×, but their non-linear Coss and sharp edge change EMI, light-load efficiency and avalanche behaviour.
Read articleSiC Schottky vs Fast Recovery Diode
SiC Schottky diodes remove reverse recovery but leak more and cost more. Where the crossover sits, and why below 20 kHz a silicon FRD is usually the better buy.
Read articleWhy Power Supplies Fail in the Field
Most field failures trace to six causes, none of them the device headline rating. What to test, and what evidence to demand from a supplier.
Read articleQualifying a Second-Source Power Device
A six-step second-source process: define the envelope, compare at matched conditions, verify on a batch, stress it, document it, then keep watch.
Read articleHTRB vs H3TRB: What Each Test Proves
Both stress a device at high temperature with reverse bias. The humidity is the difference, and it is the difference between a dry failure mode and a wet one.
Read articleBrowse by category
Looking for a single definition rather than an article? The manufacturing glossary defines 20 core terms in one page, and the FAQ covers commercial questions such as MOQ, lead time and shipping terms.
Send the part number and the operating conditions
Tell us the voltage class, current, switching frequency and what the device is replacing. You will get a datasheet, a parameter comparison at matched conditions, and a quotation with MOQ and lead time.