Is there a pin-compatible replacement for 87EC0493?

No direct pin-compatible replacement has been verified because all identified alternatives have different physical dimensions. However, candidates like 87EC0179 have the same diameter, suggesting the lead spacing will match, but they are taller.

What risks should I check before replacing 87EC0493?

Before replacing 87EC0493, you must check the physical dimensions (height, diameter, and lead spacing) of the replacement. Also, for sensitive circuits, verify that secondary parameters like ESR and ripple current rating are within your design's requirements.

87EC0493 Alternatives, Datasheet & Cross Reference | KNSCHA

87EC0493 is a 33µF 400V radial aluminum electrolytic capacitor ideal for power supply applications. While direct drop-in replacements are not confirmed, several functional alternatives exist with similar electrical performance but may require verification of physical dimensions.

AI replacement insight

Package riskmedium

Most candidates are taller than the original part. Verify available vertical clearance.

Electrical risklow

Several candidates match key electricals (33uF, 400V). Check secondary parameters like ESR for sensitive applications.

Can it be replaced directly?

No direct drop-in replacement has been verified. The best alternatives, like 87EC0179, match electrically but are physically taller, requiring clearance checks.

Best replacement path

87EC0179 is the strongest candidate if the extra 3mm of height is acceptable. It matches all key electrical parameters and has the same package diameter.

Main risk

The primary risk is physical incompatibility. Most alternatives are taller, and some have different diameters and lead spacing, which would require PCB modification.

Recommended alternatives

A strong functional alternative with identical key electricals but a slightly taller package.

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Alternative comparison matrix

Feature / factor	87EC0493	87EC0179	ERK2GM330G200T	Compatibility / risk
Capacitance	33µF	33µF	33µF	33µF — Capacitance matches the target.; ERK2GM330G200T: Capacitance matches the target.
Voltage	400V	400V	400V	400V — Voltage rating matches the target.; ERK2GM330G200T: Voltage rating matches the target.
Package	Radial, 10mm x 15mm	Radial, 10mm x 18mm	Radial, 10mm x 20mm	Radial, 10mm x 18mm / Radial, 10mm x 20mm — Same diameter and likely same lead spacing, but 3mm taller. Verify clearance.; ERK2GM330G200T: Same diameter and likely same lead spacing, but 5mm taller. Verify clearance.
Lifetime	2000h @ 105°C	2000h @ 105°C	-	2000h @ 105°C — Lifetime endurance matches the target.

Application & sourcing insights

Questions & answers

The best alternatives for 87EC0493 are 87EC0179 and ERK2GM330G200T. Both match key electrical specs, but are taller than the original part, so you must verify physical clearance on your board.