Is there a pin-compatible replacement for CS1E101M-CRE77?

Yes, VT1V101M0605 and 126RV0021 are considered pin-compatible replacements. They share the same SMD package dimensions and 2-pin layout. They have a higher voltage rating, which is a safe upgrade.

What risks should I check before replacing CS1E101M-CRE77?

Before replacing, verify that the higher 35V rating is acceptable. Also, check secondary parameters like ESR (Equivalent Series Resistance) and ripple current rating to ensure they meet your circuit's requirements.

CS1E101M-CRE77 Alternatives, Datasheet & Cross Reference | ST

Finding a replacement for the CS1E101M-CRE77, a 100µF 25V aluminum capacitor in a 6.3x5.4mm SMD package, involves matching capacitance and package, while ensuring voltage is equivalent or better.

AI replacement insight

Electrical risklow

Key parameters match or are stronger. Check secondary specs like ESR.

Package risklow

Package dimensions match. Verify land pattern if precision is required.

Sourcing riskmedium

Alternatives are from different manufacturers; check regional availability.

Can it be replaced directly?

Yes, several candidates exist with the same package and capacitance. The closest matches offer a higher voltage rating (35V), which is a safe upgrade for most designs.

Best replacement path

Upgrade to a 35V rated part with the same package and capacitance, such as VT1V101M0605 or 126RV0021.

Main risk

The primary risk is ensuring secondary parameters like ESR and ripple current are compatible with the application, as these are not always specified on datasheets.

Recommended alternatives

A strong substitute with identical package and capacitance, and a higher voltage rating.

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Alternative comparison matrix

Feature / factor	CS1E101M-CRE77	126RV0021	VT1V101M0605	Compatibility / risk
Package	6.3 mm x 5.4 mm	6.3mm x 5.4mm	6.3mm x 5.4mm	6.3mm x 5.4mm — Package dimensions match.; VT1V101M0605: Package dimensions match.
Voltage	25V	35V	35V	35V — Higher voltage is a safe upgrade.; VT1V101M0605: Higher voltage is a safe upgrade.
Capacitance	100µF	100µF	100µF	100µF — Capacitance matches.; VT1V101M0605: Capacitance matches.
Temperature	-40°C to +105°C	-55°C to +105°C	-55°C to +105°C	-55°C to +105°C — Wider operating range.; VT1V101M0605: Wider operating range.

Application & sourcing insights

Questions & answers

The best alternatives for CS1E101M-CRE77 are VT1V101M0605 and 126RV0021. Both have the same 100µF capacitance and 6.3x5.4mm package, with a higher 35V rating, making them robust upgrades.