Is there a pin-compatible replacement for 87EC0492?

No, a direct pin-compatible replacement has not been identified. All functional alternatives require verification of the physical package size and lead spacing before use, as they have a larger body diameter.

What risks should I check before replacing 87EC0492?

The main risk is mechanical interference. All potential substitutes are wider (10mm vs 8mm) and may not fit. You must also verify that the lead spacing, ripple current, and ESR ratings meet your application's requirements.

87EC0492 Alternatives, Datasheet & Cross Reference | KNSCHA

Find functional alternatives for the KNSCHA 87EC0492, a 33µF 400V radial capacitor. Key checks for any substitute include verifying the physical package dimensions, as most alternatives are larger, and confirming electrical ratings like ripple current and ESR.

AI replacement insight

Package riskhigh

All candidates have a 10mm diameter vs the target's 8mm, which may cause mechanical interference.

Electrical risklow

Several candidates match key electrical parameters like voltage, capacitance, and ESR.

Can it be replaced directly?

No direct drop-in replacements were found. All suitable electrical alternatives, such as KNSCHA 87EC0493, have a larger package diameter that requires physical fit verification.

Best replacement path

functional_alternate

Main risk

Physical package mismatch; all viable electrical alternatives are larger.

Recommended alternatives

Strong functional alternative from the same manufacturer, but with a larger package diameter.

View details

Alternative comparison matrix

Feature / factor	87EC0492	87EC0493	87EC0179	ERK2GM330G200T	Compatibility / risk
Package	Radial, 8mm x 20mm	Radial, 10mm x 15mm	Radial, 10mm x 18mm	Radial, 10mm x 20mm	Radial, 10mm x 15mm / Radial, 10mm x 18mm / Radial, 10mm x 20mm — Larger diameter and shorter length.; 87EC0179: Larger diameter and shorter length.; ERK2GM330G200T: Larger diameter may not fit.
Voltage	400V	400V	400V	400V	400V — matched; 87EC0179: matched; ERK2GM330G200T: matched
Capacitance	33µF	33µF	33µF	33µF	33µF — matched; 87EC0179: matched; ERK2GM330G200T: matched
Ripple Current	370mA @ 100kHz	370mA @ 100kHz	440mA @ 120Hz	Unknown	370mA @ 100kHz / 440mA @ 120Hz / Unknown — matched; 87EC0179: Higher rating, but at different frequency.; ERK2GM330G200T: Datasheet review required.
Esr	500mΩ @ 100kHz	500mΩ @ 100kHz	-	-	500mΩ @ 100kHz — matched
Temperature	-25°C to +105°C	-	-	-40°C to +105°C	-40°C to +105°C — Wider operating range.

Application & sourcing insights

Questions & answers

The best alternatives are electrically similar parts like KNSCHA 87EC0493 or AISHI ERK2GM330G200T. However, all have a larger 10mm package diameter compared to the original's 8mm, so you must verify they will fit on your PCB.