Extra exam question E6E09
Subelement E6, CIRCUIT COMPONENTS· Group E6E
Which of the following component package types have the least parasitic effects at frequencies above the HF range?
- A.TO-220
- B.Axial lead
- C.Radial lead
- D.Surface mount (correct answer)
WhySurface-mount component packages have the least parasitic effects at frequencies above the HF range among these package types. Surface-mount components have the least parasitic inductance and capacitance of the package types listed, since they have very short leads, or no leads at all, minimizing the stray reactance that longer leads inevitably add at higher frequencies, answer D. TO-220, axial lead, and radial lead packages all have comparatively long leads that introduce more parasitic effects above the HF range.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2024-2028 NCVEC Element 4 pool (public domain); the explanation above is original writing, see our methodology.
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