Is there a pin-compatible replacement for CYH125-33UH?

No direct pin-compatible replacement has been identified. All evaluated alternatives have different package dimensions, which will require PCB layout adjustments. Always verify the datasheet's land pattern.

What risks should I check before replacing CYH125-33UH?

Key risks include: 1) Package Mismatch: Verify the new part fits your PCB layout. 2) DC Resistance (DCR): Higher DCR increases power loss and heat. 3) Current Ratings: Ensure both saturation (Isat) and RMS (Irms) currents meet or exceed your application's requirements.

CYH125-33UH Alternatives, Datasheet & Cross Reference | Shenzhen Hanxia Electronics Co., LTD

The SHOU HAN CYH125-33UH is a 33µH power inductor in a 12.5mm x 12.5mm package, rated for 4.5A. Finding a direct drop-in replacement is challenging due to its specific combination of size, low DCR, and current rating.

AI replacement insight

Package riskhigh

No candidates match the target's 12.5x12.5mm footprint, requiring layout changes.

Electrical riskmedium

Candidates have higher DCR or lower RMS current, impacting efficiency and thermal performance.

Sourcing risklow

Multiple functional alternatives are available from different manufacturers.

Can it be replaced directly?

No direct, drop-in replacement for the CYH125-33UH is available. All candidates require careful design verification.

Best replacement path

Functional alternatives with higher current ratings but different packages, requiring layout changes and thermal analysis.

Main risk

The primary risk is the package mismatch, requiring PCB redesign. Secondary risks involve trade-offs in DC resistance and current handling.

Recommended alternatives

A functional alternative with higher current ratings but a larger footprint and increased DCR.

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Alternative comparison matrix

Feature / factor	CYH125-33UH	SLO1365H330MTT	SLO1040H330MTT	PSPMAA1040H-330M-ANP	Compatibility / risk
Inductance	33 µH	33 µH	33 µH	33 µH	33 µH — Inductance matches.; SLO1040H330MTT: Inductance matches.; PSPMAA1040H-330M-ANP: Inductance matches.
Package	12.5mm x 12.5mm	14.4mm x 12.8mm	10.3mm x 10.0mm	11.5mm x 10.0mm	14.4mm x 12.8mm / 10.3mm x 10.0mm / 11.5mm x 10.0mm — Candidate is slightly larger; requires layout verification.; SLO1040H330MTT: Candidate is smaller; may fit but requires layout check.; PSPMAA1040H-330M-ANP: Candidate is smaller; requires layout check.
Saturation Current A	4.5 A	9.0 A	5.0 A	6.0 A	9.0 A / 5.0 A / 6.0 A — Significantly higher saturation current.; SLO1040H330MTT: Slightly higher saturation current.; PSPMAA1040H-330M-ANP: Higher saturation current.
Current A	~4.5 A	5.0 A	3.5 A	4.0 A	5.0 A / 3.5 A / 4.0 A — Higher RMS current rating.; SLO1040H330MTT: Lower RMS current is a significant downgrade risk.; PSPMAA1040H-330M-ANP: Lower RMS current is a downgrade risk.
Dcr Ohm	28.6 mΩ	48 mΩ	92 mΩ	120 mΩ	48 mΩ / 92 mΩ / 120 mΩ — Higher DCR will increase power loss.; SLO1040H330MTT: Significantly higher DCR increases power loss.; PSPMAA1040H-330M-ANP: Extremely high DCR will cause significant power loss.

Application & sourcing insights

Questions & answers

There is no single best alternative. For higher current needs, parts like Sunltech's SLO1365H330MTT offer better performance but in a larger package. For smaller footprints, other options exist but often with lower current ratings or higher resistance, requiring careful design review.