Is there a pin-compatible replacement for CY43-33UH?

Currently, no pin-to-pin compatible replacements have been verified. All identified alternatives have a different package footprint and require board layout changes.

What risks should I check before replacing CY43-33UH?

Key risks include package mismatch, requiring a PCB redesign. Also, verify the candidate's saturation current (Isat) meets your application's peak current needs for stability.

CY43-33UH Alternatives, Datasheet & Cross Reference | Shenzhen Hanxia Electronics Co., LTD

Find functional alternatives for the CY43-33UH 33µH inductor. While no direct drop-in replacements are identified, several candidates offer superior electrical performance but require board layout modifications.

AI replacement insight

Package riskhigh

PCB layout modification is required for all suggested alternatives.

Electrical risklow

Candidates offer superior current handling and lower DCR, but Isat must be confirmed.

Can it be replaced directly?

No direct drop-in replacement is available; all reviewed alternatives have a different package footprint.

Best replacement path

Upgrade to a higher-current inductor like PSPMAQ0605H-330M-ANP, assuming a PCB redesign is feasible.

Main risk

The primary risk is the physical package mismatch. No identified alternatives share the target's 4.5x4.0mm footprint.

Recommended alternatives

A parametric upgrade with higher current ratings and lower DCR, but requires a larger footprint.

View details

Alternative comparison matrix

Feature / factor	CY43-33UH	PSPMAQ0605H-330M-ANP	SLS6D38S330MTT	Compatibility / risk
Package	4.5x4.0mm	6.6x7.1mm	6.8x6.8mm	6.6x7.1mm / 6.8x6.8mm — Not a drop-in replacement; requires PCB redesign.; SLS6D38S330MTT: Not a drop-in replacement; requires PCB redesign.
Current	0.5A	2.5A	1.1A	2.5A / 1.1A — Higher current handling capability.; SLS6D38S330MTT: Higher rated current.
Saturation Current A	Unknown	4.5A	Unknown	4.5A / Unknown — Significantly higher saturation current.; SLS6D38S330MTT: Must be verified from datasheet.
Dcr Ohm	0.345Ω	0.21Ω	0.124Ω	0.21Ω / 0.124Ω — Lower DCR improves efficiency.; SLS6D38S330MTT: Lower DCR improves efficiency.

Application & sourcing insights

Questions & answers

PSPMAQ0605H-330M-ANP is a strong upgrade with higher current handling (2.5A) and lower resistance. However, its larger package (6.6x7.1mm) requires a PCB redesign.