What risks should I check before replacing KF221M035F115A?

Key risks include: 1) Physical package size mismatch, as many alternatives are larger. 2) Different ESR and ripple current ratings, which can affect circuit performance and reliability. 3) Lead spacing differences if the can diameter changes.

KF221M035F115A Alternatives, Datasheet & Cross Reference | CapXon

Find pin-compatible and functional alternatives for the CapXon KF221M035F115A, a 220µF 35V aluminum electrolytic capacitor. Review key parametric differences before selection.

AI replacement insight

Electrical risklow

Voltage/capacitance matches are available, but ESR/ripple current may vary.

Package riskhigh

Many alternatives have a larger diameter, which is not a drop-in fit.

Sourcing risklow

This is a common capacitor value with multiple vendors.

Can it be replaced directly?

Direct replacement for KF221M035F115A should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for KF221M035F115A, then review parametric alternatives for package and electrical fit.

Main risk

The main risk is physical package size. Several alternatives have a larger diameter, requiring a PCB redesign.

Recommended alternatives

Pin-compatible fit with identical core ratings and significantly improved ESR and ripple current performance.

View details

Alternative comparison matrix

Feature / factor	KF221M035F115A	JBLH2221M035D090RLM 220UF 35V	35YXJ220MT78X11.5	Compatibility / risk
Package	Radial, 8mm Dia.	Radial, 8mm Dia.	Radial, 8x11.5mm	Radial, 8mm Dia. / Radial, 8x11.5mm — Candidate is shorter (9mm vs 11.5mm), which is acceptable.; 35YXJ220MT78X11.5: Identical package dimensions.
Voltage	35V	35V	35V	35V — matched; 35YXJ220MT78X11.5: matched
Capacitance	220µF	220µF	220µF	220µF — matched; 35YXJ220MT78X11.5: matched
Esr	114mΩ	40mΩ	0.13Ω	40mΩ / 0.13Ω — Lower ESR is a performance upgrade.; 35YXJ220MT78X11.5: Slightly higher impedance.
Ripple Current	750mA	1700mA	640mA	1700mA / 640mA — Higher ripple current handling improves reliability.; 35YXJ220MT78X11.5: Lower ripple current rating.

Application & sourcing insights

Questions & answers

Verified drop-in options for KF221M035F115A 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.