Passive Components Sourcing from China
1 resources tagged with "Passive Components"
This tag covers passive electronic components sourced from China, centered on MLCC (multilayer ceramic) capacitors across X5R, X7R, and C0G/NP0 dielectrics, including AEC-Q200 automotive-grade parts. Dielectric choice drives behavior — C0G/NP0 is stable, X7R drifts with temperature and voltage, and the wrong substitution quietly degrades a design. Counterfeit and re-marked passives are the dominant sourcing risk in this category, especially during MLCC shortages.
When you source MLCCs and other passives, the trap is a broker offering scarce parts at suspiciously good prices — these are frequently re-marked or salvaged. We verify date codes, packaging, and lot traceability, and for critical designs we run capacitance and DC-bias checks rather than trusting the reel label.
Products (1)
FAQ
What's the difference between X7R and C0G/NP0 MLCCs?
C0G/NP0 is temperature- and voltage-stable, ideal for timing and filtering. X7R offers higher capacitance in a smaller size but loses capacitance under DC bias and temperature — don't substitute one for the other without checking the circuit.
How do I avoid counterfeit capacitors from China?
Buy from authorized distributors or verified factories, check date codes and lot traceability, and be wary of below-market prices on scarce parts. For critical builds, electrically test samples from each lot.
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