Is there a pin-compatible replacement for ERS1JM470E12OT?

No guaranteed pin-compatible replacement has been verified. AISHI SPZ1JM470E09O00RAXXX has the same diameter and likely the same lead spacing, making it a potential form-fit replacement. However, it uses a different (polymer) dielectric technology, so it is not a direct drop-in replacement without engineering review.

What risks should I check before replacing ERS1JM470E12OT?

The main risks are physical and electrical. First, check the substitute's package dimensions (diameter, length, lead spacing) to ensure it fits. Second, verify key electrical parameters like ESR, ripple current, and lifetime, especially if the substitute uses a different technology (e.g., polymer vs. standard electrolytic).

ERS1JM470E12OT Alternatives, Datasheet & Cross Reference | AISHI

Reviewing replacements for the AISHI ERS1JM470E12OT, a 47µF 63V radial capacitor. Key considerations for substitutes include matching the through-hole package and electrical ratings, while paying close attention to physical dimensions and capacitor technology.

AI replacement insight

Package riskhigh

Most candidates have a different package (SMD) or size (diameter) and require a board redesign.

Electrical riskmedium

The best form-fit candidate uses polymer technology, which affects ESR and lifetime. This must be verified.

Sourcing risklow

Multiple manufacturers offer functionally similar capacitors if a redesign is feasible.

Can it be replaced directly?

No direct drop-in replacement was found. The closest candidate, AISHI SPZ1JM470E09O00RAXXX, has a matching form factor but uses a different capacitor technology that requires engineering validation.

Best replacement path

The most promising path is AISHI SPZ1JM470E09O00RAXXX, which matches the form factor but requires review of its polymer technology.

Main risk

Package mismatch is the primary risk. Most alternatives are surface-mount or have a different diameter, requiring a PCB redesign.

Recommended alternatives

A strong alternative with matching voltage, capacitance, and diameter, but uses polymer technology which requires review.

View details

Alternative comparison matrix

Feature / factor	ERS1JM470E12OT	SPZ1JM470E09O00RAXXX	SPZ1KM470G12O00RAXXX	Compatibility / risk
Package	Radial, 6.3mm x 12mm	Radial, 6.3mm x 9mm	Radial, 10mm x 12mm	Radial, 6.3mm x 9mm / Radial, 10mm x 12mm — Diameter matches, but length is shorter. Likely compatible.; SPZ1KM470G12O00RAXXX: Candidate diameter is much larger and will not fit in the same footprint.
Voltage	63.0V	63.0V	100.0V	63.0V / 100.0V — Voltage rating matches the target.; SPZ1KM470G12O00RAXXX: Higher voltage rating is a safe upgrade.
Capacitance	47.0µF	47.0µF	47.0µF	47.0µF — Capacitance matches the target.; SPZ1KM470G12O00RAXXX: Capacitance matches the target.
Technology	Standard Electrolytic	Polymer	-	Polymer — Candidate is a polymer type, which has different ESR and life characteristics.
Endurance	5000h @ 105°C	Unknown	-	Unknown — Target is rated for 5000h. Candidate lifetime must be verified.

Application & sourcing insights

Questions & answers

AISHI's SPZ1JM470E09O00RAXXX is a strong candidate with matching voltage, capacitance, and diameter. However, it is a polymer type with a shorter body, so users must verify if its different ESR and lifetime characteristics are suitable for their application.