Is there a pin-compatible replacement for PSPMAC1045H-101M-ANP?

No pin-to-pin compatible replacement has been verified. Alternatives like CYA1265-100UH have different package sizes (1265 vs 1045) and are not drop-in compatible.

What risks should I check before replacing PSPMAC1045H-101M-ANP?

The main risks are package size mismatch, requiring PCB layout changes, and ensuring the replacement's current ratings (both saturation and thermal/rated) meet or exceed the original's 4A Isat and 2A rated current.

PSPMAC1045H-101M-ANP Alternatives, Datasheet & Cross Reference | PROD Technology Co., Ltd.

Finding a replacement for the PSPMAC1045H-101M-ANP 100µH inductor involves balancing electrical performance with physical size. While several parts offer superior current handling, they often require PCB changes.

AI replacement insight

Package riskhigh

Alternatives are in larger packages (e.g., 1265, 1770) and not drop-in.

Electrical risklow

Candidates offer better current ratings and DCR, but must be verified.

Sourcing riskmedium

Alternatives are from different vendors, requiring supply chain qualification.

Can it be replaced directly?

No, a direct drop-in replacement for PSPMAC1045H-101M-ANP has not been found. All suitable electrical alternatives have different physical packages.

Best replacement path

For new designs or redesigns, CYA1265-100UH offers superior electrical performance. For existing boards, no drop-in replacement is available.

Main risk

The primary risk is mechanical incompatibility; all electrically suitable alternatives are physically larger and require a new PCB layout.

Recommended alternatives

Electrically superior alternative with higher current ratings and lower DCR, but requires board redesign due to a larger package.

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Alternative comparison matrix

Feature / factor	PSPMAC1045H-101M-ANP	CYA1265-100UH	SMMS1770-101M	Compatibility / risk
Inductance	100µH	100µH	100µH	100µH — Inductance value matches.; SMMS1770-101M: Inductance value matches.
Saturation Current A	4A	8.5A	12A	8.5A / 12A — Higher saturation current.; SMMS1770-101M: Significantly higher saturation current.
Current A	2A	4.5A	Missing	4.5A / Missing — Higher rated (thermal) current.; SMMS1770-101M: Rated (thermal) current is not specified.
Dcr Ohm	250mΩ	185mΩ	110mΩ	185mΩ / 110mΩ — Lower DCR improves efficiency.; SMMS1770-101M: Lower DCR improves efficiency.
Package	1045 (SMD)	1265	1770	1265 / 1770 — Package is larger, not a drop-in.; SMMS1770-101M: Package is much larger, not a drop-in.

Application & sourcing insights

Questions & answers

CYA1265-100UH is a strong electrical upgrade with higher current ratings and lower resistance, but its larger package requires a board redesign. No direct drop-in replacement has been identified.