Is there a pin-compatible replacement for ERJ1KM220E12OT?

No, a direct pin-compatible replacement was not identified. All reviewed candidates with similar electrical properties have a different physical size or lead spacing, making them incompatible for drop-in replacement without board modifications.

What risks should I check before replacing ERJ1KM220E12OT?

Before replacing, you must verify the physical dimensions. Check the can diameter, height, and lead spacing of any alternative to ensure it fits on your PCB. For some candidates, you must also verify if a different tolerance (e.g., -40%/+0%) is acceptable for your circuit.

ERJ1KM220E12OT Alternatives, Datasheet & Cross Reference | AISHI

ERJ1KM220E12OT is a 22µF 100V radial aluminum electrolytic capacitor from AISHI in a compact 6.3x12mm package. Finding a direct drop-in replacement requires matching these key electrical and physical specifications.

AI replacement insight

Package riskhigh

All candidates are physically larger than the target's 6.3x12mm package, requiring board space and layout verification.

Electrical risklow

Most candidates match or exceed key electrical ratings like voltage. One candidate has a mismatched tolerance, which is a high risk for that specific part.

Can it be replaced directly?

No direct, pin-compatible replacements were found among the candidates reviewed. All functional alternatives are physically larger and would require board layout modifications to fit.

Best replacement path

Search for a 22uF, 100V (or higher) radial aluminum electrolytic capacitor with a 6.3mm diameter and ~2.5mm lead spacing.

Main risk

The primary risk is physical incompatibility. All reviewed alternatives have a larger can size and/or different lead spacing, preventing a drop-in replacement.

Recommended alternatives

A strong electrical alternative with higher voltage, but its larger size prevents drop-in replacement.

View details

Alternative comparison matrix

Feature / factor	ERJ1KM220E12OT	EHS2GM220G16OT	ERT226M2WI16RR	LKML1602W220MF	Compatibility / risk
Package	Radial, 6.3mm x 12mm	Radial, 10mm x 16mm	Radial, 12.5mm x 16mm	Radial, 16x25mm (est.)	Radial, 10mm x 16mm / Radial, 12.5mm x 16mm / Radial, 16x25mm (est.) — Candidate is significantly larger.; ERT226M2WI16RR: Candidate is significantly larger.; LKML1602W220MF: Candidate is significantly larger and will not fit in the same footprint.
Lead Spacing	~2.5mm	5mm	5.0mm	-	5mm / 5.0mm — Wider lead spacing than target's typical 2.5mm.; ERT226M2WI16RR: Wider lead spacing than target's typical 2.5mm.
Voltage	100V	400V	450V	450V	400V / 450V — Higher voltage rating is a safe upgrade.; ERT226M2WI16RR: Higher voltage rating is a safe upgrade.; LKML1602W220MF: Higher voltage rating is a safe upgrade.
Capacitance	22uF	22uF	22uF	22uF	22uF — matched; ERT226M2WI16RR: matched; LKML1602W220MF: matched
Tolerance	±20%	-	-	±20%	±20% — matched

Application & sourcing insights

Questions & answers

The best functional alternative is EHS2GM220G16OT, which has matching capacitance and tolerance with a higher voltage rating. However, it is physically larger (10x16mm vs 6.3x12mm) and requires board space verification.