Is there a pin-compatible replacement for EWH1KM100D11OT?

No, a direct pin-compatible replacement was not found. All reviewed radial candidates have a larger diameter (6.3mm vs 5.0mm) and wider lead spacing (2.5mm vs 2.0mm), which will not fit a board designed for the original part without modification.

What risks should I check before replacing EWH1KM100D11OT?

The main risk is mechanical fit. Substitutes are larger and have different lead spacing. You must also check electrical differences: one option is a polymer capacitor with very low ESR, and another has a shorter lifetime. Verify these against your application's requirements.

EWH1KM100D11OT Alternatives, Datasheet & Cross Reference | AISHI

EWH1KM100D11OT is a standard 10uF 100V radial aluminum electrolytic capacitor. While several functional alternatives exist, none are direct drop-in replacements due to differences in package size and lead spacing, requiring careful mechanical verification.

AI replacement insight

Package riskhigh

All radial alternatives have larger diameter (6.3mm vs 5mm) and lead spacing (2.5mm vs 2.0mm).

Electrical riskmedium

Candidates include a polymer type with different ESR and a part with shorter lifetime. These require application-specific review.

Can it be replaced directly?

No direct, drop-in replacement has been identified. All potential alternatives have different physical dimensions that require verification.

Best replacement path

ECE2CM100E12OTPO offers upgraded voltage (160V) and lifetime (6000h), but its larger package (6.3x12mm) and lead spacing (2.5mm) must be verified to fit the board.

Main risk

Package mismatch is the primary risk. All reviewed radial candidates are physically larger and have different lead spacing than the target part.

Recommended alternatives

An electrical upgrade with higher voltage and longer life, but its larger package requires board layout verification.

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Alternative comparison matrix

Feature / factor	EWH1KM100D11OT	ECE2CM100E12OTPO	SPZ1KM100E10O00RAXXX	KM106M100E11RR0VH2FP0	Compatibility / risk
Package	Radial, 5mm x 11mm	Radial, 6.3mm x 12mm	Radial, 6.3mm x 10mm	Radial, 6.3mm x 11mm	Radial, 6.3mm x 12mm / Radial, 6.3mm x 10mm / Radial, 6.3mm x 11mm — Larger diameter/height and different lead spacing (2.5mm vs 2.0mm).; SPZ1KM100E10O00RAXXX: Larger diameter and different lead spacing (2.5mm vs 2.0mm).; KM106M100E11RR0VH2FP0: Larger diameter and different lead spacing (2.5mm vs 2.0mm).
Voltage	100V	160V	100V	100V	160V / 100V — Higher voltage rating is a safe upgrade.; SPZ1KM100E10O00RAXXX: Voltage rating matches.; KM106M100E11RR0VH2FP0: Voltage rating matches.
Lifetime	2000h @ 105°C	6000h @ 105°C	2000h @ 105°C	1000h @ 105°C	6000h @ 105°C / 2000h @ 105°C / 1000h @ 105°C — Longer lifetime is a significant upgrade.; SPZ1KM100E10O00RAXXX: Load life matches.; KM106M100E11RR0VH2FP0: Shorter lifetime is a downgrade.
Capacitance	10uF	10uF	-	10uF	10uF — Capacitance matches.; KM106M100E11RR0VH2FP0: Capacitance matches.
Technology	Wet Electrolytic	-	Polymer	-	Polymer — Polymer caps have much lower ESR; may affect circuit stability.

Application & sourcing insights

Questions & answers

The best alternative found is ECE2CM100E12OTPO. It offers superior voltage (160V vs 100V) and lifetime (6000h vs 2000h), but you must confirm its larger 6.3mm diameter and 2.5mm lead spacing fit your PCB.