What risks should I check before replacing KM1E221M0611?

The main risks are physical size and electrical characteristics. First, verify the can diameter and height fit your PCB, as many alternatives are larger. Second, confirm if a lower ESR (impedance) or higher voltage rating is acceptable for your application.

KM1E221M0611 Alternatives, Datasheet & Cross Reference | ROQANG

Find pin-compatible substitutes and functional alternatives for the ROQANG KM1E221M0611, a 220µF 25V aluminum electrolytic capacitor. Review key parameter differences like package size and voltage rating before ordering.

AI replacement insight

Package riskhigh

Most alternatives are physically larger and will not fit the existing PCB layout without modification.

Electrical risklow

Capacitance/tolerance match on most candidates. Higher voltage or lower ESR are generally safe upgrades.

Can it be replaced directly?

Direct replacement for KM1E221M0611 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The most direct path is using ROQANG GR1E221M0611, which matches the manufacturer and package code, offering a potential performance upgrade.

Main risk

The primary risk is physical incompatibility; many alternatives have a larger can diameter than the target's 6.3mm and will not fit.

Recommended alternatives

Excellent match from the same manufacturer with identical package code and key electricals.

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Alternative comparison matrix

Feature / factor	KM1E221M0611	GR1E221M0611	KF221M035F115A	KM221M025E110A	Compatibility / risk
Manufacturer	ROQANG	ROQANG	CapXon	CapXon	ROQANG / CapXon — Same manufacturer reduces qualification variables.; KF221M035F115A: Cross-vendor alternative.; KM221M025E110A: Cross-vendor alternative.
Voltage	25V	25V	35V	25V	25V / 35V — Voltage rating matches the target.; KF221M035F115A: Higher voltage rating provides more design margin.; KM221M025E110A: Voltage rating matches the target.
Capacitance	220µF ±20%	220µF ±20%	-	-	220µF ±20% — Capacitance and tolerance match.
Package	Radial, Can (6.3x11mm)	Radial, Can (likely 6.3x11mm)	Radial, Can (8x11.5mm)	Radial, Can (8x11.5mm)	Radial, Can (likely 6.3x11mm) / Radial, Can (8x11.5mm) — Part number code '0611' implies identical package.; KF221M035F115A: Larger can diameter requires PCB layout verification.; KM221M025E110A: Larger can diameter requires PCB layout verification.
Series	KM (General Purpose)	GR (Low Impedance)	KF (Low Impedance)	KM (General Purpose)	GR (Low Impedance) / KF (Low Impedance) / KM (General Purpose) — Candidate is a low impedance series, which is a performance upgrade but should be verified.; KF221M035F115A: Low impedance series may be an upgrade.; KM221M025E110A: Both are general purpose 'KM' series, but from different vendors.

Application & sourcing insights

Questions & answers

Verified drop-in options for KM1E221M0611 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.