What risks should I check before replacing EWH1KM221K20OT?

Before replacing, check three main risks: 1) Physical dimensions, as many alternatives are larger. 2) Lead spacing and style, ensuring it fits your PCB. 3) Secondary electrical parameters like ESR and ripple current rating for your specific circuit.

EWH1KM221K20OT Alternatives, Datasheet & Cross Reference | AISHI

Find suitable replacements for the AISHI EWH1KM221K20OT, a 220µF 100V radial aluminum electrolytic capacitor. This guide provides verified alternatives, from direct pin-compatible options to functional upgrades.

AI replacement insight

Package riskhigh

Many alternatives are physically larger or have different lead spacing/styles, requiring PCB redesign.

Electrical risklow

Capacitance and voltage are standard values. Check secondary parameters like ESR and ripple current for sensitive applications.

Can it be replaced directly?

Direct replacement for EWH1KM221K20OT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

The best replacement is AISHI ERS1KM221K20OT, which matches all key parameters and package dimensions, while offering superior endurance.

Main risk

The main risk when substituting EWH1KM221K20OT is physical incompatibility. Many functional alternatives have larger packages or different mounting styles.

Recommended alternatives

A likely pin-compatible alternative with identical key ratings and a longer endurance life.

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Alternative comparison matrix

Feature / factor	EWH1KM221K20OT	ERS1KM221K20OT	EWH2DM221M25OT	Compatibility / risk
Package	Radial, 13mm x 20mm	Radial, 13mm x 20mm	Radial, 18mm x 25mm	Radial, 13mm x 20mm / Radial, 18mm x 25mm — Package dimensions match.; EWH2DM221M25OT: Physically larger and will not fit the same footprint.
Voltage	100V	100V	200V	100V / 200V — Voltage rating is identical.; EWH2DM221M25OT: Higher voltage rating is a safe upgrade.
Capacitance	220µF	220µF	-	220µF — Capacitance is identical.
Endurance	2000h	10,000h	2000h	10,000h / 2000h — Candidate has significantly longer rated life.; EWH2DM221M25OT: Endurance rating is identical.
Pinout	5mm	-	7.5mm	7.5mm — Lead spacing does not match.

Application & sourcing insights

Questions & answers

Verified drop-in options for EWH1KM221K20OT 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.