Is there a pin-compatible replacement for HU2G100M-CRG12?

No drop-in, pin-compatible replacement has been confirmed from catalog data alone. All strong candidates are radial capacitors with 2 leads, but have minor to significant differences in case height that require verification.

What risks should I check before replacing HU2G100M-CRG12?

Before replacing, you must check the physical package dimensions, especially the height. Several alternatives are taller and may not fit. Also, verify the operating temperature range and lifetime to ensure they meet or exceed your application's requirements.

HU2G100M-CRG12 Alternatives, Datasheet & Cross Reference | ST

Finding a substitute for the HU2G100M-CRG12 10uF 400V capacitor involves balancing electrical upgrades with physical constraints. While several functional alternatives exist, careful attention to package height is critical for a successful replacement.

AI replacement insight

Package riskmedium

Most alternatives are taller. Verify board height clearance.

Electrical risklow

Several candidates match or exceed voltage, temp, and lifetime ratings.

Sourcing risklow

This is a common capacitor value with multiple vendor options.

Can it be replaced directly?

No direct pin-for-pin replacement has been verified. The closest alternatives require checking mechanical clearance due to slight size differences.

Best replacement path

The KNSCHA 03EC1734 is the strongest candidate, offering a voltage upgrade with a nearly identical package and matching performance.

Main risk

The primary risk when substituting is mechanical incompatibility, as several alternatives are taller than the original part.

Recommended alternatives

Strong functional alternative with a voltage upgrade and very similar package size.

View details

Alternative comparison matrix

Feature / factor	HU2G100M-CRG12	03EC1734	450BXW10MEFR10X16	400BXC10MEFC10X16	Compatibility / risk
Voltage	400V	450V	450V	400V	450V / 400V — Higher voltage rating is generally safe.; 450BXW10MEFR10X16: Higher voltage rating.; 400BXC10MEFC10X16: Identical voltage rating.
Package	10x12.5mm	10x13mm	10x16mm	10x16mm	10x13mm / 10x16mm — Slightly taller (+0.5mm), diameter matches.; 450BXW10MEFR10X16: Significantly taller (+3.5mm).; 400BXC10MEFC10X16: Significantly taller (+3.5mm).
Lifetime	5000h	5000h	10000h	10000h	5000h / 10000h — Identical endurance rating.; 450BXW10MEFR10X16: Longer endurance.; 400BXC10MEFC10X16: Longer endurance.
Temperature	-40°C to 105°C	-40°C to 105°C	-40°C to 105°C	-25°C to +105°C	-40°C to 105°C / -25°C to +105°C — Identical operating range.; 450BXW10MEFR10X16: Identical operating range.; 400BXC10MEFC10X16: Narrower low-end temp range.

Application & sourcing insights

Questions & answers

The best alternative found is the KNSCHA 03EC1734. It offers a higher voltage rating (450V) with a very similar package (10x13mm) and identical lifetime and temperature ratings. A minor height check is advised.