Is there a pin-compatible replacement for CY54-33UH?

No pin-compatible replacement for CY54-33UH has been identified in this review. All candidates have different package dimensions, which will require PCB layout verification or modification.

What risks should I check before replacing CY54-33UH?

The main risks are mechanical and electrical. First, verify the substitute's package fits your PCB layout. Second, confirm its saturation current (Isat) exceeds your application's peak current. Finally, ensure the wider tolerance (typically ±20%) is acceptable.

CY54-33UH Alternatives, Datasheet & Cross Reference | Shenzhen Hanxia Electronics Co., LTD

Finding a replacement for the CY54-33UH 33µH inductor requires checking both electrical and mechanical specs. While several parts offer similar inductance, key differences in package size, current ratings, and tolerance must be reviewed.

AI replacement insight

Package riskhigh

All reviewed candidates have different footprints, requiring PCB layout changes.

Electrical riskmedium

Candidates have wider tolerance. Target's unknown saturation current requires careful analysis of the application's peak current.

Can it be replaced directly?

No direct drop-in replacement for CY54-33UH has been identified. All potential substitutes have different package sizes or electrical parameters that require engineering review.

Best replacement path

Use a functional alternate like PSPMAQ0605H-330M-ANP if PCB space allows for a larger footprint and higher current is beneficial. Otherwise, review datasheets for inductors in a ~5.8x5.2mm package.

Main risk

Package incompatibility is the primary risk, as no direct drop-in has been found. The target's missing saturation current spec also creates electrical risk.

Recommended alternatives

Electrical upgrade with much higher current ratings, but is larger and has wider tolerance. Requires layout verification.

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Alternative comparison matrix

Feature / factor	CY54-33UH	PSPMAQ0605H-330M-ANP	SLS6D38S330MTT	Compatibility / risk
Package	SMD, 5.8x5.2mm	SMD, 6.6mm x 7.1mm	SMD (likely ~6x6mm)	SMD, 6.6mm x 7.1mm / SMD (likely ~6x6mm) — Physically larger than target, not a drop-in replacement.; SLS6D38S330MTT: Package size differs, not a drop-in replacement. Verify footprint.
Inductance	33µH	33µH	33µH	33µH — matched; SLS6D38S330MTT: matched
Current	0.86A	2.5A	1.1A	2.5A / 1.1A — Significantly higher rated current.; SLS6D38S330MTT: Higher rated current is generally safe.
Saturation Current	Not specified	4.5A	Not specified	4.5A / Not specified — Strong saturation current performance.; SLS6D38S330MTT: Must be verified for application to avoid saturation.
Tolerance	±10%	±20%	±20%	±20% — Wider tolerance may affect circuit performance.; SLS6D38S330MTT: Wider tolerance may affect circuit performance.
Dcr	0.208Ω	-	0.124Ω	0.124Ω — Lower DCR improves efficiency.

Application & sourcing insights

Questions & answers

PSPMAQ0605H-330M-ANP is a strong electrical upgrade with higher current ratings, but it is physically larger. For a closer size match, SLS6D38S330MTT is an option, but its saturation current is unknown. Both require careful review.