Is there a pin-compatible replacement for MWSA0603S-1R5MT?

Yes, MWSA0603S-1R0MT is from the same manufacturer series and has an identical package (6.6mm x 7.0mm), making it a pin-compatible, form-fit replacement. However, its electrical function differs due to lower inductance.

What risks should I check before replacing MWSA0603S-1R5MT?

The main risk is the change in inductance from 1.5µH to 1.0µH. This can increase ripple current, affect loop stability, and potentially change the operating point of a switching power supply. Always simulate or test in-circuit.

MWSA0603S-1R5MT Alternatives, Datasheet & Cross Reference | Shenzhen Sunlord Electronics Co., Ltd.

The Sunlord MWSA0603S-1R5MT is a 1.5µH molded SMD power inductor rated for 12A, in a 6.6mm x 7.0mm package. It is designed for high-current DC-DC converters and power supplies.

AI replacement insight

Electrical riskmedium

Lower inductance (1.0µH vs 1.5µH) will alter DC-DC converter performance.

Package risklow

The best candidate shares the exact same package and manufacturer series.

Can it be replaced directly?

No direct drop-in replacement was found. The closest candidate, MWSA0603S-1R0MT, has a different inductance value that must be evaluated for your specific application.

Best replacement path

The most viable alternative is MWSA0603S-1R0MT, which offers the same package and improved current/DCR ratings but has a lower inductance of 1.0µH. This change requires engineering validation.

Main risk

The primary risk is the electrical performance change due to the lower inductance of the best available alternative, which can affect ripple current and system stability.

Recommended alternatives

A form-fit compatible alternate from the same series with better DCR and Isat, but lower inductance.

View details

Alternative comparison matrix

Feature / factor	MWSA0603S-1R5MT	MWSA0603S-1R0MT	Compatibility / risk
Inductance	1.5 µH	1.0 µH	1.0 µH — Lower inductance requires engineering review for circuit stability and ripple current.
Saturation Current A	12 A	15 A	15 A — Candidate has higher saturation current, offering more margin.
Current A	12 A	12 A	12 A — Heat rating current is identical.
Dcr Ohm	12.1 mΩ	7.4 mΩ	7.4 mΩ — Lower DCR improves efficiency.
Package	0603 (6.6mm x 7.0mm)	0603 (6.6mm x 7.0mm)	0603 (6.6mm x 7.0mm) — Same manufacturer series and package ensures form/fit compatibility.

Application & sourcing insights

Questions & answers

The best alternative found is Sunlord's MWSA0603S-1R0MT. It shares the same package and has better current ratings, but its inductance is lower at 1.0µH, which requires engineering review before use.