Is there a pin-compatible replacement for EHS2GM221M45OT?

No verified pin-to-pin replacement was found. ERT187M2WL40RR has matching lead spacing and diameter, making it a form-fit, but it differs in key electrical parameters like capacitance and endurance.

What risks should I check before replacing EHS2GM221M45OT?

Before replacing, you must check: 1) Physical dimensions, especially the 18mm diameter. 2) If the circuit can tolerate lower capacitance (e.g., 180µF). 3) If a shorter endurance rating (e.g., 2000-3000 hours) meets the product's lifetime requirements.

EHS2GM221M45OT Alternatives, Datasheet & Cross Reference | AISHI

Finding a substitute for the AISHI EHS2GM221M45OT 220µF 400V capacitor requires careful review of physical dimensions, capacitance, and endurance. While several options exist, none are a direct drop-in replacement.

AI replacement insight

Package riskmedium

Many alternatives have different diameters or mounting styles.

Electrical riskmedium

Candidates often have lower capacitance or endurance, impacting performance and reliability.

Can it be replaced directly?

No direct, drop-in replacement was found. All viable candidates have differences in size, capacitance, or endurance that require engineering review.

Best replacement path

The best path is to find a radial capacitor with 220µF, ≥400V, and dimensions close to 18x45mm. ERT187M2WL40RR is a physical fit but has lower capacitance and endurance.

Main risk

The main risks are physical incompatibility due to different case sizes and reduced system reliability from lower endurance ratings.

Recommended alternatives

Functional alternative with higher voltage but larger case size and lower endurance rating.

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Alternative comparison matrix

Feature / factor	EHS2GM221M45OT	ERH2WM221O46OT	ERT187M2WL40RR	Compatibility / risk
Package	Radial, Can - Through Hole	Radial, Can - Through Hole	Radial, Can (18x40mm)	Radial, Can - Through Hole / Radial, Can (18x40mm) — Candidate is physically larger (22x46mm vs 18x45mm).; ERT187M2WL40RR: Diameter and lead spacing match. Shorter length is acceptable.
Voltage	400V	450V	450V	450V — Higher voltage rating is a safe upgrade.; ERT187M2WL40RR: Higher voltage rating is a safe upgrade.
Capacitance	220µF	220µF	180µF	220µF / 180µF — matched; ERT187M2WL40RR: Lower capacitance may affect circuit performance.
Endurance	5000h @ 105°C	3000h @ 105°C	2000h @ 105°C	3000h @ 105°C / 2000h @ 105°C — Lower endurance may reduce system lifetime.; ERT187M2WL40RR: Significantly lower endurance will impact reliability.

Application & sourcing insights

Questions & answers

The best potential alternative is ERT187M2WL40RR, which fits physically but requires accepting lower capacitance (180µF) and endurance. ERH2WM221O46OT is electrically closer but is physically larger and may not fit.