Is there a pin-compatible replacement for ERJ1EM102G20OT?

Yes, parts like Rubycon 25YXJ1000MFFC10X20 and CX KM108M025G20RR0VH2FP0 share the same 10x20mm radial package and primary ratings. However, they are not functionally identical, as they have significantly lower ripple current and endurance ratings, making them a performance downgrade that requires engineering review.

What risks should I check before replacing ERJ1EM102G20OT?

Before replacing, you must check for mismatches in ripple current rating, ESR (Equivalent Series Resistance), and load life. The target part has high-performance specs (2.5A ripple, 10000h life), and many alternatives are a downgrade. Also, confirm physical dimensions (diameter, length, lead spacing) to ensure a proper fit.

ERJ1EM102G20OT Alternatives, Datasheet & Cross Reference | AISHI

Finding a substitute for the AISHI ERJ1EM102G20OT requires careful attention to its high-performance characteristics. This 1000µF 25V capacitor features a high ripple current rating and long endurance, which are critical for demanding applications.

AI replacement insight

Electrical riskhigh

Target has high ripple current and endurance. Most alternatives are significant downgrades.

Package risklow

The 10x20mm radial package is common, but some alternatives may have different dimensions.

Can it be replaced directly?

No direct, drop-in replacement with identical performance has been identified. Alternatives like Rubycon's 25YXJ1000MFFC10X20 match the form and primary values but have lower ripple current and endurance ratings, requiring engineering review.

Best replacement path

For highest performance, consider solid polymer capacitors like Yunxing SPT1EM102G12OR, but verify package and circuit compatibility. For a similar technology, Rubycon 25YXJ1000MFFC10X20 is a form-fit match but with lower performance.

Main risk

The primary risk is substituting with a capacitor that cannot handle the application's ripple current, leading to overheating and premature failure.

Recommended alternatives

A form-fit substitute from Rubycon with weaker performance in ripple current, ESR, and endurance.

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Alternative comparison matrix

Feature / factor	ERJ1EM102G20OT	25YXJ1000MFFC10X20	KM108M025G20RR0VH2FP0	Compatibility / risk
Capacitance	1000uF	1000uF	1000uF	1000uF — Matches target.; KM108M025G20RR0VH2FP0: Matches target.
Voltage	25V	25V	25V	25V — Matches target.; KM108M025G20RR0VH2FP0: Matches target.
Package	Radial, 10mm x 20mm	Radial, 10mm x 20mm	Radial, 10mm x 20mm	Radial, 10mm x 20mm — Same form factor.; KM108M025G20RR0VH2FP0: Same form factor.
Ripple Current	2.5A	865mA	821mA	865mA / 821mA — Significantly lower than target.; KM108M025G20RR0VH2FP0: Significantly lower than target.
Esr	28mΩ	46mΩ	-	46mΩ — Higher ESR than target.
Load Life	10000h	4000-10000h	2000h	4000-10000h / 2000h — Potentially shorter life.; KM108M025G20RR0VH2FP0: Significantly shorter than target.

Application & sourcing insights

Questions & answers

The best alternative depends on your priority. For performance, consider a solid polymer capacitor like Yunxing's SPT1EM102G12OR, but this requires verifying its different package and electrical behavior. For a similar technology, Rubycon's 25YXJ1000MFFC10X20 is a form-fit match but with lower performance ratings.