Is there a pin-compatible replacement for CYA1265-10UH?

Yes, the SHOU HAN CYA1250-10UH is pin-compatible and has the same package dimensions. However, it is a performance downgrade with lower current ratings (16A vs 21A Isat) and higher resistance.

What risks should I check before replacing CYA1265-10UH?

Key risks include: 1) Package mismatch if choosing a physically different part. 2) Overheating or saturation if using a part with lower current ratings (Isat/Idc). 3) Increased power loss from higher DC Resistance (DCR).

CYA1265-10UH Alternatives, Datasheet & Cross Reference | SHOU HAN

Finding a replacement for the CYA1265-10UH, a 10µH power inductor, requires matching its 21A saturation current and 13.8x12.8mm package. Alternatives may involve performance downgrades or layout changes.

AI replacement insight

Electrical riskmedium

Downgrade options have lower current ratings, increasing risk of saturation or overheating.

Package riskhigh

Electrically superior options are physically larger and require a new PCB layout.

Can it be replaced directly?

No direct, 1-to-1 replacement with identical or better performance in the same package was found. CYA1250-10UH is a form-fit downgrade, while SMMS1770-100M is an electrical upgrade in a larger package.

Best replacement path

For a drop-in with lower performance, consider CYA1250-10UH. For higher performance requiring a board respin, SMMS1770-100M is an option.

Main risk

The main risks are either thermal/saturation issues from using a lower-rated part, or mechanical incompatibility from a larger part.

Recommended alternatives

A form-fit alternative with the same inductance but lower current ratings and higher DCR, posing a performance downgrade risk.

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Alternative comparison matrix

Feature / factor	CYA1265-10UH	CYA1250-10UH	SMMS1770-100M	Compatibility / risk
Package	13.8x12.8x6.5mm	13.8x12.8x5.2mm	17.15x17.15x7.0mm	13.8x12.8x5.2mm / 17.15x17.15x7.0mm — Form-fit compatible, slightly lower profile.; SMMS1770-100M: Candidate is physically larger, requires layout change.
Inductance	10µH	10µH	10µH	10µH — matched; SMMS1770-100M: matched
Saturation Current A	21A	16A	25A	16A / 25A — Significantly lower saturation current.; SMMS1770-100M: Higher saturation current provides more margin.
Current	11A	9A	16.5A	9A / 16.5A — Lower temp. rise current rating.; SMMS1770-100M: Higher temp. rise current rating.
Dcr Ohm	15.5mΩ	18mΩ	11.6mΩ	18mΩ / 11.6mΩ — Higher DCR reduces efficiency.; SMMS1770-100M: Lower DCR improves efficiency.

Application & sourcing insights

Questions & answers

The best alternative depends on your priority. SMMS1770-100M offers better electrical performance but is larger. CYA1250-10UH fits the same footprint but has lower current ratings and must be validated for performance.