Is there a pin-compatible replacement for 01EC2051?

While no exact pin-to-pin replacements are confirmed, ERT226M2WI16RR has the same 5.0mm lead spacing and is a likely fit. Physical dimensions are slightly different (12.5x16mm vs 13x20mm), so check board clearance.

What risks should I check before replacing 01EC2051?

Key risks include physical package differences (diameter and height), and ensuring the replacement's ESR and ripple current ratings are suitable for your circuit's power and thermal requirements.

01EC2051 Alternatives, Datasheet & Cross Reference | KNSCHA

Find and compare replacements for the KNSCHA 01EC2051, a 22µF 450V aluminum electrolytic capacitor. Review functional alternatives and check key parameters like package size, ESR, and lifetime.

AI replacement insight

Package risklow

Most candidates are radial with similar lead spacing, but body size varies.

Electrical riskmedium

Voltage must be >=450V. ESR and ripple current must be verified.

Sourcing risklow

Multiple vendors offer similar capacitors, but check regional stock.

Can it be replaced directly?

No confirmed direct drop-in replacement. ERT226M2WI16RR is a strong form-fit-function candidate requiring minimal verification.

Best replacement path

The most promising path is ERT226M2WI16RR, which matches all critical parameters and has compatible mounting. Other 450V candidates require package verification.

Main risk

The main risk is ensuring the replacement's physical dimensions fit the PCB layout and that its ESR and ripple current ratings are adequate.

Recommended alternatives

A strong alternative with matching key electricals, lifetime, and lead spacing in a slightly smaller package.

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Alternative comparison matrix

Feature / factor	01EC2051	ERT226M2WI16RR	LKML1602W220MF	Compatibility / risk
Voltage	450V	450V	450V	450V — Voltage rating matches the target.; LKML1602W220MF: Voltage rating matches the target.
Capacitance	22uF, ±20%	22uF, ±20%	22uF, ±20%	22uF, ±20% — Capacitance and tolerance match.; LKML1602W220MF: Capacitance and tolerance match.
Package	Radial, 13x20mm, 5mm lead spacing	Radial, 12.5x16mm, 5mm lead spacing	Radial	Radial, 12.5x16mm, 5mm lead spacing — Slightly smaller body with same lead spacing, likely compatible.; LKML1602W220MF: Package dimensions not specified; requires datasheet verification.
Lifetime	5000h	5000h	7000-10000h	5000h / 7000-10000h — Lifetime matches target specification.; LKML1602W220MF: Candidate offers a longer operational lifetime.
Esr	1.9 Ω	Unknown	Unknown	Unknown — ESR and ripple current must be verified from datasheet.; LKML1602W220MF: ESR and ripple current must be verified from datasheet.

Application & sourcing insights

Questions & answers

ERT226M2WI16RR by MAN YUE is a strong alternative, offering matching electrical specifications and lead spacing in a slightly smaller package. Always verify the datasheet for your specific application.