The catalogue is organised by component family. Each family page carries the same matrix, filtered to that family, plus a note on what actually decides selection inside it.

• Resistors

  Thick-film and thin-film chips from 0402 to 2512, metal-strip current shunts, and the axial metal-film parts that survive hand assembly. The recurring question in this family is not resistance but tempco, derating and what the termination does in a hostile atmosphere.

  5 profiles · resistors

• Capacitors

  MLCC from C0G through X7R and X5R, solid tantalum, and radial aluminium electrolytics. Dielectric class decides everything: a C0G and an X7R of the same nominal value are not the same component and this family is organised around that fact.

  6 profiles · capacitors

• Diodes

  Small-signal switching diodes, general rectifiers, Schottky rectifiers, zener references and TVS clamps. Reverse recovery, forward drop at the actual operating current, and leakage at temperature are the three numbers that decide which one you need.

  5 profiles · diodes

• MOSFETs

  Logic-level and standard-threshold N-channel and P-channel devices in SOT-23 and TO-220. The distinction that matters is the gate drive voltage the Rds(on) figure was measured at, not the headline current on the first page.

  5 profiles · mosfets

• Logic ICs

  Timers, shift registers, counters, Schmitt triggers, op-amps and analogue multiplexers — the glue parts that turn a microcontroller into an instrument. Supply range, output drive and what an unused input does when left floating.

  4 profiles · logic

• Connectors

  USB-C receptacles, JST signal headers, 2.54 mm board headers, XT60 power connectors, RJ45 jacks and Molex wire-to-board systems. Ratings here are thermal and mechanical as much as electrical, and the mating half is always a separate part number.

  5 profiles · connectors