Is there a pin-compatible replacement for YNR5020-100M?

FNR5020S100MT shares the same 5020 package and is likely pin-compatible. However, since it is from a different manufacturer, verification of the land pattern and thermal performance is recommended before production.

What risks should I check before replacing YNR5020-100M?

When replacing YNR5020-100M, verify the alternative's inductance, saturation current (Isat), RMS current (Irms), and DC Resistance (DCR) to ensure circuit stability and prevent overheating.

YNR5020-100M Alternatives, Datasheet & Cross Reference | YJYCOIN

YJYCOIN YNR5020-100M is a 10µH shielded power inductor in a 5x5mm package, rated for 1.55A. Key considerations for alternatives include matching inductance, current ratings, and DC resistance.

AI replacement insight

Electrical riskmedium

Mismatched inductance or higher DCR can affect circuit performance and efficiency.

Package risklow

Several candidates share the same 5020 package, simplifying board layout.

Can it be replaced directly?

No verified direct drop-in replacement is available. FNR5020S100MT is a strong form-fit-function alternative, but requires review of its higher DC resistance.

Best replacement path

FNR5020S100MT from cjiang is a strong candidate with matching inductance and package, and higher current ratings, but its slightly higher DCR requires thermal analysis.

Main risk

The main risk is selecting an alternative with incorrect inductance, which can destabilize a power supply, or one with lower current ratings, causing overheating.

Recommended alternatives

Strong alternative with matching inductance and package, and higher current ratings. Review higher DCR.

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Alternative comparison matrix

Feature / factor	YNR5020-100M	FNR5020S100MT	YNR5020-6R8M	Compatibility / risk
Application	10µH	10µH	6.8µH	10µH / 6.8µH — Inductance matches target.; YNR5020-6R8M: Lower inductance requires circuit re-evaluation.
Current	1.55A	1.7A	1.8A	1.7A / 1.8A — Higher RMS current rating.; YNR5020-6R8M: Higher RMS current rating.
Resistance	110mΩ	143mΩ	108mΩ	143mΩ / 108mΩ — Higher DCR may increase I²R losses.; YNR5020-6R8M: Slightly lower max DCR.
Package	5020 (5.0mm x 5.0mm)	5020 (5.0mm x 5.0mm)	5020 (5.0mm x 5.0mm)	5020 (5.0mm x 5.0mm) — Same package footprint.; YNR5020-6R8M: Same package footprint.

Application & sourcing insights

Questions & answers

FNR5020S100MT is a strong alternative, offering the same 10µH inductance and 5020 package with higher current ratings. However, its slightly higher DCR should be evaluated for thermal impact.