Is there a pin-compatible replacement for ERR1EM681F20OT?

No direct pin-to-pin replacement has been verified. While several parts are functionally similar, they differ in package dimensions (diameter or length), which requires a physical fit check before substitution.

What risks should I check before replacing ERR1EM681F20OT?

Key risks are physical. Check the substitute's diameter and length to ensure it fits the PCB layout. Also verify lead spacing. Electrically, ensure capacitance is 680µF and voltage is at least 25V. Check ripple current and ESR if critical for your application.

ERR1EM681F20OT Alternatives, Datasheet & Cross Reference | AISHI

ERR1EM681F20OT is a standard 680µF 25V radial aluminum electrolytic capacitor in an 8x20mm package. Alternatives exist but require careful verification of physical dimensions, as package size is a common variation.

AI replacement insight

Package riskhigh

Most alternatives have different diameters or lengths.

Electrical risklow

Capacitance and voltage are standard values and easy to match.

Can it be replaced directly?

No drop-in, pin-to-pin replacement has been identified. All reviewed candidates have physical dimension differences requiring verification.

Best replacement path

Find a candidate with 680µF, >=25V, and an 8mm diameter package. Length can often be shorter.

Main risk

The primary risk is physical incompatibility. Candidates often have different diameters or lengths, which can prevent assembly.

Recommended alternatives

Longer life (3000h) but has a larger 10mm diameter that requires physical fit verification.

View details

Alternative comparison matrix

Feature / factor	ERR1EM681F20OT	GR687M025G17RR0VL4FP0	GR687M035G20RR0VL4FP0	SPT1EM681F12OR	Compatibility / risk
Package	Radial, 8mm x 20mm	Radial, 10mm x 17mm	Radial, 10mm x 20mm	Radial, 8mm x 12mm	Radial, 10mm x 17mm / Radial, 10mm x 20mm / Radial, 8mm x 12mm — Larger diameter, shorter length.; GR687M035G20RR0VL4FP0: Larger diameter.; SPT1EM681F12OR: Shorter length, same diameter.
Capacitance	680µF	680µF	680µF	680µF	680µF — matched; GR687M035G20RR0VL4FP0: matched; SPT1EM681F12OR: matched
Voltage	25V	25V	35V	25V	25V / 35V — matched; GR687M035G20RR0VL4FP0: Higher voltage rating provides more margin.; SPT1EM681F12OR: matched
Endurance	2000h @ 105°C	3000h @ 105°C	3000h @ 105°C	2000h @ 105°C	3000h @ 105°C / 2000h @ 105°C — Longer rated life.; GR687M035G20RR0VL4FP0: Longer rated life.; SPT1EM681F12OR: matched

Application & sourcing insights

Questions & answers

The best alternatives match the 680µF capacitance and 25V rating. Candidates like Yunxing's SPT1EM681F12OR are electrically identical but shorter, while others may offer higher voltage at the cost of a larger diameter. Always verify physical fit.