Is there a pin-compatible replacement for CYA0650-3.3UH?

No drop-in, pin-compatible replacement has been verified. SMMS0650-3R3M is a strong candidate with a similar 7.1mm x 6.6mm package, but requires engineering review before use.

What risks should I check before replacing CYA0650-3.3UH?

Key risks include: 1) Package mismatch, as most alternatives require a PCB redesign. 2) Narrower operating temperature range on some candidates. 3) Differences in DC Resistance (DCR) affecting efficiency.

CYA0650-3.3UH Alternatives, Datasheet & Cross Reference | SHOU HAN

Finding a replacement for the SHOU HAN CYA0650-3.3UH, a 3.3µH power inductor, involves matching its 9A saturation current and 7.2mm x 6.6mm package. Several functional alternatives exist, but careful review of package size and temperature range is critical.

AI replacement insight

Package riskhigh

Most alternatives have different footprints requiring PCB redesign.

Electrical risklow

Most candidates meet or exceed current ratings, but temperature range may differ.

Can it be replaced directly?

No verified direct pin-to-pin replacement has been identified. SMMS0650-3R3M is a strong form-fit-function candidate requiring engineering review of its footprint and temperature specifications.

Best replacement path

The closest candidate is SMMS0650-3R3M, which offers similar electrical performance and package size, but its narrower operating temperature range must be validated for the application.

Main risk

The primary risk is package incompatibility. Most alternatives have different footprints, requiring a PCB redesign. Even close matches need land pattern verification.

Recommended alternatives

A close parametric match with a similar footprint, but requires verification of land pattern and operating temperature.

View details

Alternative comparison matrix

Feature / factor	CYA0650-3.3UH	SMMS0650-3R3M	SMMS1770-3R3M	Compatibility / risk
Package	7.2mm x 6.6mm	7.1mm x 6.6mm	1770 (17.5mm x 17mm)	7.1mm x 6.6mm / 1770 (17.5mm x 17mm) — Very close but requires footprint verification.; SMMS1770-3R3M: Much larger, not a drop-in replacement.
Saturation Current A	9.0A	9.0A	54A	9.0A / 54A — matched; SMMS1770-3R3M: stronger
Current A	8.5A	8.5A	28A	8.5A / 28A — Heat rating current (Irms).; SMMS1770-3R3M: Heat rating current (Irms).
Temperature	-55°C to +125°C	-40°C to +125°C	-	-40°C to +125°C — Narrower operating range.
Dcr Ohm	19.9mΩ	20mΩ	3.68mΩ	20mΩ / 3.68mΩ — Very close match.; SMMS1770-3R3M: Significantly lower DCR.

Application & sourcing insights

Questions & answers

SMMS0650-3R3M is the closest parametric match, but requires verifying the package footprint and narrower operating temperature range (-40°C to 125°C).