Is there a pin-compatible replacement for ERF1EM681G16OT?

KNSCHA 01EC4294SHC1000UF25V shares the same package and pinout, but its capacitance is 1000µF, significantly higher than the original 680µF. This electrical difference must be validated in your circuit.

What risks should I check before replacing ERF1EM681G16OT?

Key risks include: 1) Package size mismatch, ensure the new part fits the PCB layout. 2) Capacitance difference, which can affect circuit timing, stability, and inrush current. 3) Voltage rating, ensure it is equal or higher.

ERF1EM681G16OT Alternatives, Datasheet & Cross Reference | AISHI

Finding a substitute for the AISHI ERF1EM681G16OT, a 680µF 25V radial capacitor, requires checking both electrical parameters and physical dimensions. Alternatives exist but may require design adjustments.

AI replacement insight

Electrical riskmedium

Capacitance or other secondary parameter changes.

Package riskhigh

Some alternatives are physically larger.

Sourcing risklow

Multiple alternatives are available.

Can it be replaced directly?

No direct drop-in replacement was found. All candidates have significant differences in either package size or capacitance, requiring engineering review.

Best replacement path

If board space allows, ERS1HM681W20OT is a strong electrical match. If the footprint is fixed, 01EC4294SHC1000UF25V is a physical match but requires circuit analysis for the higher capacitance.

Main risk

The primary risks are physical incompatibility due to different package sizes and circuit malfunction from mismatched capacitance.

Recommended alternatives

Electrically superior with higher voltage and lifetime, but is physically larger and not a drop-in replacement.

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Alternative comparison matrix

Feature / factor	ERF1EM681G16OT	ERS1HM681W20OT	01EC4294SHC1000UF25V	Compatibility / risk
Package	Radial, 10mm x 16mm	Radial, 12.5mm x 20mm	-	Radial, 10mm x 16mm — Same diameter and length.
Capacitance	680µF	680µF	-	1000µF — Significantly higher capacitance.
Voltage	25V	50V	-	25V — Voltage rating matches.
Lifetime	unknown	10000h	-	10000h — Longer endurance.
Tolerance	±20%	-	±20%	±20% — Tolerance matches.

Application & sourcing insights

Questions & answers

The best alternative depends on design flexibility. ERS1HM681W20OT offers the same capacitance with a higher voltage rating but is physically larger. 01EC4294SHC1000UF25V has the same package but higher capacitance. Both require engineering review.