Extra exam question E7H08
Subelement E7, PRACTICAL CIRCUITS· Group E7H
Which of the following components can be used to reduce thermal drift in crystal oscillators?
- A.NP0 capacitors (correct answer)
- B.Toroidal inductors
- C.Wirewound resistors
- D.Non-inductive resistors
WhyNP0 capacitors can be used to reduce thermal drift in crystal oscillators. NP0 (also written C0G) capacitors have an extremely stable, near-zero temperature coefficient of capacitance, so using them in a crystal oscillator's tuning and loading circuitry helps keep the oscillator's frequency from drifting as temperature changes, answer A. Toroidal inductors, wirewound resistors, and non-inductive resistors don't address capacitance-driven thermal drift the way a temperature-stable capacitor choice does.
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.