Best Alternatives to UU9.8-10mH

Package: UU9.8 4-pin DIPGuangdong Fenghua Advanced Technology Holding Co., Ltd.Common Mode ChokesProduct Type: DIP common-mode line filterInductance: 10 mH min per windingDC Resistance: 0.9 Ω max per winding at 25 °CWithstand Voltage: 1.5 kVAC coil-to-coil and coil-to-coreWinding Connections: Pins 1–2 and 4–3

UU9.8-10mH is a 10mH 2-line through-hole common mode filter. Alternatives need pinout, footprint, and EMI validation.

AI replacement insight

Electrical riskmedium

CMC inductance changes affect EMI.

Package riskhigh

Lead pitch and body size missing.

Firmware risklow

Passive part; no firmware.

Sourcing riskmedium

Candidates are indexed but unchecked.

Can it be replaced directly?

No verified pin-compatible replacement is supported by the provided evidence.

Best replacement path

Start with PDMCAT18107-153MLB for review; it is the closest kept 2-line CMC candidate.

Main risk

Pinout and footprint are not verified, and inductance differs from 10mH.

Recommended alternatives

3
PDMCAT18107-153MLB package
PDMCAT18107-153MLB

PROD Technology Co., Ltd.

Needs validationmedium risk

15mH 2-line through-hole CMC candidate; pinout and footprint need review.

View details

Alternative comparison matrix

Feature / factorUU9.8-10mHPDMCAT18107-153MLBPDMCAT18107-203MLBPDUUAT105-502MLNCompatibility / risk
PackageThrough HoleThrough HoleThrough HoleThrough HoleThrough Hole — mount style matches; PDMCAT18107-203MLB: mount style matches; PDUUAT105-502MLN: mount style matches
Pinout4-pin4-pin4-pinmissing4-pin / missing — pin functions missing; PDMCAT18107-203MLB: pin functions missing; PDUUAT105-502MLN: pin count absent
Current0.5A3.5A3A4A3.5A / 3A / 4A — higher rating; PDMCAT18107-203MLB: higher rating; PDUUAT105-502MLN: higher rating
Resistance1.2Ω max80mΩ100mΩ100mΩ80mΩ / 100mΩ — lower DCR; PDMCAT18107-203MLB: lower DCR; PDUUAT105-502MLN: lower DCR
Voltage1.0kVAC1.5kV-1kV1.5kV / 1kV — rating wording differs; PDUUAT105-502MLN: no 1.1 margin
Temperature-25..85°C-missing-missing — not in ES keys

Application & sourcing insights

Questions & answers

PDMCAT18107-153MLB is the best kept review candidate, but it is 15mH and not verified pin-compatible.