Is there a pin-compatible replacement for 03EC0593?

No pin-compatible (radial package) replacement with matching performance has been found in this catalog. All reviewed candidates are surface-mount (SMD) and not physically compatible.

What risks should I check before replacing 03EC0593?

First, verify your PCB can accommodate an SMD capacitor. Second, check if the lower ripple current rating and higher ESR of the replacement are acceptable for your application's power and thermal needs.

03EC0593 Alternatives, Datasheet & Cross Reference | KNSCHA

Finding a replacement for the KNSCHA 03EC0593, a 220µF 25V radial capacitor, requires careful review. No direct drop-in replacements have been identified; alternatives are surface-mount (SMD) and have different performance characteristics.

AI replacement insight

Package riskhigh

Target is through-hole radial, all candidates are SMD. Requires board redesign.

Electrical riskhigh

Candidates have much lower ripple current ratings and higher ESR, which can lead to component failure or circuit malfunction.

Can it be replaced directly?

No, there is no direct, pin-compatible replacement for 03EC0593 in this catalog. All potential alternatives are surface-mount (SMD) parts that require a different PCB layout.

Best replacement path

No direct replacement exists. The best path is to evaluate functional SMD alternatives like VZH221M1ETR-0810, assuming a board redesign is possible and the performance downgrade is acceptable.

Main risk

The primary risks are the package mismatch (Radial vs. SMD) and the significantly lower ripple current ratings and higher ESR of available alternatives.

Recommended alternatives

An SMD upgrade path with higher voltage, but requires redesign and has weaker performance.

View details

Alternative comparison matrix

Feature / factor	03EC0593	VZH221M1VTR-0810L	VZH221M1ETR-0810	Compatibility / risk
Package	Radial, 6.3mm x 11.5mm	SMD, 8x10mm	SMD, 8mm x 10mm	SMD, 8x10mm / SMD, 8mm x 10mm — Target is a through-hole radial part; candidate is surface-mount. Requires board redesign.; VZH221M1ETR-0810: Target is a through-hole radial part; candidate is surface-mount. Requires board redesign.
Voltage	25V	35V	25V	35V / 25V — Higher voltage rating provides more design margin.; VZH221M1ETR-0810: Voltage rating matches the target.
Current	530mA @ 100kHz	350mA @ 100kHz	350mA @ 100kHz	350mA @ 100kHz — Candidate has significantly lower ripple current handling. Verify application requirements.; VZH221M1ETR-0810: Candidate has significantly lower ripple current handling. Verify application requirements.
Esr	0.15 Ω @ 100kHz	0.38 Ω @ 100kHz	0.38 Ω @ 100kHz	0.38 Ω @ 100kHz — Candidate has higher ESR, which may affect circuit performance and thermal dissipation.; VZH221M1ETR-0810: Candidate has higher ESR, which may affect circuit performance and thermal dissipation.
Application	Not specified	AEC-Q200	AEC-Q200	AEC-Q200 — Candidate is automotive qualified, which may be an advantage.; VZH221M1ETR-0810: Candidate is automotive qualified, which may be an advantage.

Application & sourcing insights

Questions & answers

There is no drop-in alternative. The Lelon VZH221M1ETR-0810 is a functional match but is an SMD part with lower ripple current handling and requires board redesign and performance validation.