Is there a pin-compatible replacement for UU9.8Y-10mH?

No pin-compatible replacement has been verified in this analysis. All reviewed functional alternatives have different physical footprints and are not drop-in replacements.

What risks should I check before replacing UU9.8Y-10mH?

The main risk is the physical package; verify the footprint and dimensions of any alternative. Also check the impedance vs. frequency curve for high-frequency applications.

UU9.8Y-10mH Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

UU9.8Y-10mH is a 10mH, 0.5A through-hole common mode choke from FH, used for EMI filtering. Finding a replacement requires matching electrical specs and the UU9.8Y physical footprint.

AI replacement insight

Electrical risklow

Alternatives with superior current/DCR ratings are available.

Package riskhigh

No form-fit compatible parts were found in this review.

Can it be replaced directly?

No direct pin-for-pin replacement has been verified. Alternatives exist with similar electrical properties but different physical packages, requiring board layout changes.

Best replacement path

Find a common mode choke with 10mH inductance, current rating ≥0.5A, DCR ≤1.2Ω, and an identical UU9.8Y package footprint.

Main risk

The primary risk is mechanical incompatibility. Alternatives have different package sizes and pin spacing, preventing a drop-in replacement.

Recommended alternatives

A functional alternative with a higher current rating and lower DCR, but in a different vertical-mount package.

View details

Alternative comparison matrix

Feature / factor	UU9.8Y-10mH	PDSQAT1212-103MLB	PDSQAT1515-103MWB	Compatibility / risk
Inductance	10 mH	10 mH	10 mH	10 mH — Inductance matches target.; PDSQAT1515-103MWB: Inductance matches target.
Current	0.5 A	2.5 A	4.5 A	2.5 A / 4.5 A — Higher current rating provides more margin.; PDSQAT1515-103MWB: Significantly higher current rating provides more margin.
Dcr	1.2 Ω	0.12 Ω	0.05 Ω	0.12 Ω / 0.05 Ω — Lower DCR reduces power loss.; PDSQAT1515-103MWB: Much lower DCR reduces power loss.
Package	Through Hole (UU9.8Y)	1212 Vertical	1515 Horizontal	1212 Vertical / 1515 Horizontal — Different vertical-mount footprint. Not a drop-in replacement.; PDSQAT1515-103MWB: Different through-hole footprint. Not a drop-in replacement.

Application & sourcing insights

Questions & answers

Parts like PROD PDSQAT1515-103MWB are strong functional alternatives with better current and DCR ratings, but require board redesign due to a different package.