Is there a pin-compatible replacement for MWSA1004S-220MT?

Potentially, but none are confirmed as direct drop-in replacements. Candidates like MWSA1004S-330MT share the exact package dimensions but have different electrical characteristics (33µH, lower current ratings) that must be verified.

What risks should I check before replacing MWSA1004S-220MT?

Key risks include: 1) Inductance value mismatch, affecting circuit performance. 2) Lower current ratings (Isat/Irms), causing saturation or overheating. 3) Different package height, leading to mechanical fit issues. 4) Higher DCR, reducing efficiency.

MWSA1004S-220MT Alternatives, Datasheet & Cross Reference | Shenzhen Sunlord Electronics Co., Ltd.

MWSA1004S-220MT is a 22µH molded SMD power inductor from Sunlord, featuring a 5.5A saturation current in a 10.0x11.5x4.0mm package. It is designed for use in power conversion and filtering applications.

AI replacement insight

Electrical riskhigh

Changes in inductance or lower current ratings can cause circuit malfunction or damage.

Package riskmedium

Some alternatives have a different height, which may cause mechanical interference on the board.

Can it be replaced directly?

No direct drop-in replacement has been identified. Alternatives within the same series have different inductance or package heights, requiring design validation.

Best replacement path

Find an inductor with 22µH inductance, a 10x11.5x4.0mm package, Isat ≥ 5.5A, Irms ≥ 4.2A, and DCR ≤ 66mΩ.

Main risk

The main risk is selecting a part with incorrect inductance, which can destabilize a power converter, or a part with a different physical height, causing mechanical interference.

Recommended alternatives

Same series with better current ratings, but lower inductance and a taller package requires careful review.

View details

Alternative comparison matrix

Feature / factor	MWSA1004S-220MT	MWSA1004S-150MT	MWSA1004S-330MT	Compatibility / risk
Inductance	22 µH	15 µH	33 µH	15 µH / 33 µH — Lower inductance will alter circuit behavior.; MWSA1004S-330MT: Higher inductance will alter circuit behavior.
Saturation Current A	5.5 A	6.5 A	4.8 A	6.5 A / 4.8 A — Higher saturation current provides more headroom.; MWSA1004S-330MT: Lower saturation current increases risk of core saturation.
Current	4.2 A	5.6 A	2.65 A	5.6 A / 2.65 A — Higher heat rating current allows for more continuous current.; MWSA1004S-330MT: Significantly lower heat rating current increases thermal risk.
Package	10x11.5x4.0mm	10x11.5x4.8mm	10x11.5x4.0mm	10x11.5x4.8mm / 10x11.5x4.0mm — Candidate is 0.8mm taller, check for mechanical clearance.; MWSA1004S-330MT: Package dimensions match.
Dcr Ohm	66 mΩ	65 mΩ	160 mΩ	65 mΩ / 160 mΩ — Slightly lower DCR improves efficiency.; MWSA1004S-330MT: Much higher DCR will reduce efficiency and increase heat.

Application & sourcing insights

Questions & answers

While no perfect drop-in is found, other parts in the Sunlord MWSA1004S series like MWSA1004S-150MT offer similar footprints but require careful review of inductance (15µH) and height (4.8mm) for your specific application.