CYA1250-3.3UH
SHOU HAN
Needs validationmedium risk
An upgrade path from the same manufacturer with higher current ratings, but requires board redesign due to a larger footprint.
Best Alternatives to CYA0850-3.3UH
CYA0850-3.3UH is a 3.3µH, 15A power inductor in an 8.3x8.3mm package. While no direct drop-in replacements have been identified, several functional alternatives with superior electrical performance are available if PCB redesign is possible.
AI replacement insight
Package riskhigh
No alternatives share the target's 8.3x8.3mm footprint.
Electrical risklow
Many alternatives offer superior current handling and lower DCR.
Sourcing risklow
Multiple vendors offer functionally similar parts.
Can it be replaced directly?
No direct, drop-in replacement for CYA0850-3.3UH is available. All potential substitutes require a PCB layout modification due to different package sizes.
Best replacement path
Upgrade to a higher-current part from the same manufacturer's series, like CYA1250-3.3UH, and adapt the PCB layout.
Main risk
Package incompatibility is the main risk, preventing a direct drop-in replacement and mandating a board redesign for any alternative.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | CYA0850-3.3UH | CYA1250-3.3UH | CYA1265-3.3UH | SMMS1040-3R3M | Compatibility / risk |
|---|---|---|---|---|---|
| Inductance | 3.3 µH | 3.3 µH | - | 3.3 µH | 3.3 µH — Inductance matches.; SMMS1040-3R3M: Inductance matches.; PSPMAA1040H-3R3M-ANP: Inductance matches. |
| Saturation Current A | 15A | 32A | 45A | 16A | 32A / 45A / 16A — Significantly higher saturation current.; CYA1265-3.3UH: Significantly higher saturation current.; SMMS1040-3R3M: Slightly higher saturation current.; PSPMAA1040H-3R3M-ANP: Slightly higher saturation current. |
| Current A | 10A | 20A | 25A | 10A | 20A / 25A / 10A — Higher RMS current handling.; CYA1265-3.3UH: Significantly higher RMS current.; SMMS1040-3R3M: RMS current matches.; PSPMAA1040H-3R3M-ANP: RMS current matches. |
| Dcr Ohm | 11mΩ | 3.5mΩ | 5.0mΩ | 10.8mΩ | 3.5mΩ / 5.0mΩ / 10.8mΩ / 12mΩ max — Lower DCR improves efficiency.; CYA1265-3.3UH: Much lower DCR improves efficiency.; SMMS1040-3R3M: Slightly lower DCR.; PSPMAA1040H-3R3M-ANP: Slightly higher DCR than target's typical. |
| Package | CYA0850 (8.3x8.3mm) | 1250 (13x12.9mm) | 1265 (13x12.9mm) | 1040 (11.5x10mm) | 1250 (13x12.9mm) / 1265 (13x12.9mm) / 1040 (11.5x10mm) / 1040H (10.2x11mm) — Larger footprint requires board redesign.; CYA1265-3.3UH: Larger footprint requires board redesign.; SMMS1040-3R3M: Larger footprint requires board redesign.; PSPMAA1040H-3R3M-ANP: Larger footprint requires board redesign. |
Application & sourcing insights
Questions & answers
Parts like SHOU HAN CYA1250-3.3UH offer significantly higher current ratings and lower DCR, but come in a larger package (13x12.9mm) requiring a board layout change.