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Best Alternatives to FHW1812IF101JST

Package: 1812Guangdong Fenghua Advanced Technology Holding Co., Ltd.ChokesInductance: 100 µHTolerance: ±5%Rated Current: 220 mADC Resistance (DCR): 3.0 Ω maxPackage / Case: 1812 (4532 Metric)

Reviewing alternatives for the FHW1812IF101JST, a 100µH, 220mA inductor in an 1812 package. Key considerations for substitutes include package size, current rating, and inductance tolerance.

AI replacement insight

Package riskhigh

All candidates have significantly different and larger footprints than the target's 1812 package.

Electrical riskmedium

Candidates have weaker inductance tolerance (±10-20% vs ±5%), which may impact performance in sensitive circuits.

Can it be replaced directly?

No direct, drop-in replacement was found for FHW1812IF101JST among the candidates reviewed.

Best replacement path

Functional upgrade if board space allows. All candidates require PCB redesign.

Main risk

Package mismatch is the primary risk, as no alternatives share the 1812 footprint, necessitating a PCB redesign.

Recommended alternatives

5
PSPHAQ127-101M package
PSPHAQ127-101M

PROD

Needs validationhigh risk

High-current functional alternative in a large 12x12mm package with weaker tolerance.

View details

Alternative comparison matrix

Feature / factorFHW1812IF101JSTPSPHAQ127-101MPSPMAA0605H-101M-IGFPSPMAC1045H-101M-ANPCompatibility / risk
Package1812SMD, 12x12mm0605 (6.6x7.1mm)1045 (SMD)SMD, 12x12mm / 0605 (6.6x7.1mm) / 1045 (SMD) / SMD, 7.8x7.0mm — Candidate is much larger, requires board redesign.; PSPMAA0605H-101M-IGF: Different footprint, requires board redesign.; PSPMAC1045H-101M-ANP: Candidate is much larger (10.2x10.6mm), requires board redesign.; CY75-100UH: Different footprint, requires board redesign.
Current0.22A1.7A1.7A2.0A1.7A / 2.0A / 0.73A — Significantly higher current rating.; PSPMAA0605H-101M-IGF: Significantly higher current rating.; PSPMAC1045H-101M-ANP: Significantly higher current rating.; CY75-100UH: Higher current rating.
Saturation CurrentUnknown2.2A2.0A4.0A2.2A / 2.0A / 4.0A / Unknown — Significantly higher saturation current.; PSPMAA0605H-101M-IGF: Significantly higher saturation current.; PSPMAC1045H-101M-ANP: Significantly higher saturation current.; CY75-100UH: Isat not specified; must be verified for application.
Dcr3.0Ω0.22Ω0.43Ω0.25Ω0.22Ω / 0.43Ω / 0.25Ω / 0.325Ω — Significantly lower DCR.; PSPMAA0605H-101M-IGF: Significantly lower DCR.; PSPMAC1045H-101M-ANP: Significantly lower DCR.; CY75-100UH: Significantly lower DCR.
Tolerance±5%±20%±20%±20%±20% / ±10% — Looser tolerance may affect circuit performance.; PSPMAA0605H-101M-IGF: Looser tolerance may affect circuit performance.; PSPMAC1045H-101M-ANP: Looser tolerance may affect circuit performance.; CY75-100UH: Looser tolerance may affect circuit performance.

Application & sourcing insights

Questions & answers

No single 'best' alternative exists as all require a board redesign. For a high-performance upgrade, consider PSPMAC1045H-101M-ANP, which offers much higher current ratings, but verify its larger footprint and weaker tolerance are acceptable.