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Best Alternatives to 118EC235

Package: SMD, 6.3x9mmKNSCHAAluminum Electrolytic CapacitorsCapacitance: 220 µFRated Voltage: 25 VESR: 26 mΩRipple Current: 3000 mATolerance: ±20%

KNSCHA 118EC235 is a high-performance 220µF 25V polymer aluminum capacitor with very low ESR and high ripple current, ideal for power applications. Finding a direct replacement requires matching both its electrical performance and its compact 6.3x9mm SMD package.

AI replacement insight

Electrical riskhigh

Mismatch in capacitor technology (polymer vs. electrolytic) causes severe performance degradation.

Package riskhigh

Most alternatives are physically larger and will not fit on the existing PCB footprint.

Sourcing riskmedium

High-performance polymer capacitors in this specific size may be less common than standard types.

Can it be replaced directly?

No, there is no known direct, drop-in replacement for the 118EC235. All reviewed candidates have significant differences in package size or performance.

Best replacement path

Search for other 220µF, ≥25V *polymer* capacitors in a 6.3x9mm or similar package. Standard electrolytics are not suitable substitutes.

Main risk

The primary risk is substituting a high-performance polymer capacitor with a standard electrolytic, leading to a massive drop in ripple current handling and an increase in ESR.

Recommended alternatives

2
VZH221M1VTR-0810L package
Needs validationmedium risk

Alternative with higher voltage (35V) but in a larger package with likely lower performance; requires full re-evaluation.

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Alternative comparison matrix

Feature / factor118EC235VZH221M1VTR-0810LVZH221M1ETR-0810Alt 3Compatibility / risk
Package6.3x9mm8x10mm8mm x 10mm8x10mm / 8mm x 10mm — Candidate is larger and will not fit the same footprint.; VZH221M1ETR-0810: Candidate is larger and will not fit the same footprint.
Voltage25V35V25V35V / 25V — Higher voltage rating provides increased design margin.; VZH221M1ETR-0810: Voltage matches target, no extra margin.
Ripple Current3000mAUnknownUnknownUnknown — Likely severe downgrade; target is a high-performance polymer type.; VZH221M1ETR-0810: Likely severe downgrade; target is a high-performance polymer type.
Esr26mΩUnknownUnknownUnknown — Likely much higher; target is a low-ESR polymer type.; VZH221M1ETR-0810: Likely much higher; target is a low-ESR polymer type.
ApplicationN/AAEC-Q200-AEC-Q200 — Candidate is automotive qualified.

Application & sourcing insights

Questions & answers

There are no direct drop-in replacements. Alternatives like Lelon's VZH series offer similar capacitance but have larger packages and are standard electrolytic, not polymer, resulting in lower performance (ripple current, ESR). Careful validation is required.