Is there a pin-compatible replacement for SWPA5020S2R2NT?

No, there are no confirmed pin-to-pin compatible replacements in this list. While SWPA5040S2R2NT has a compatible PCB footprint, its increased height (4.0mm vs 2.0mm) prevents it from being a true drop-in replacement without mechanical verification.

What risks should I check before replacing SWPA5020S2R2NT?

Before replacing SWPA5020S2R2NT, you must check three main things: 1) Package dimensions, especially the height, to ensure it fits. 2) Saturation Current (Isat) to ensure it meets or exceeds 4.0A. 3) RMS Current (Irms) to prevent overheating under load.

SWPA5020S2R2NT Alternatives, Datasheet & Cross Reference | Shenzhen Sunlord Electronics Co., Ltd.

Finding a replacement for the Sunlord SWPA5020S2R2NT 2.2µH inductor involves balancing electrical upgrades with mechanical constraints. While several alternatives offer better current handling, the key challenge is matching the original's low-profile 2.0mm height.

AI replacement insight

Package riskhigh

All reviewed candidates are taller or have a different footprint than the target.

Electrical risklow

Most candidates offer superior or equivalent electrical specs (Isat, DCR), but one has a lower RMS current.

Sourcing risklow

Multiple vendors (Sunlord, SXN) offer functionally similar parts, indicating a healthy supply chain for this spec.

Can it be replaced directly?

No direct drop-in replacement has been identified. The closest candidate, SWPA5040S2R2NT, has a matching footprint but is 2mm taller, which requires a mechanical check.

Best replacement path

If vertical clearance allows, SWPA5040S2R2NT is the best option as it shares the same PCB footprint and offers superior electrical performance. If not, a PCB redesign is required to use other functional alternatives.

Main risk

The primary risk is mechanical incompatibility, specifically the package height. Most alternatives are significantly taller than the 2.0mm target.

Recommended alternatives

Electrically superior alternative with a matching footprint but is significantly taller.

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Alternative comparison matrix

Feature / factor	SWPA5020S2R2NT	SWPA5040S2R2NT	SMNR5040-2R2MT	Compatibility / risk
Package	5020 (5.0x5.0x2.0mm)	5040 (5.0x5.0x4.0mm)	5040 (5.0x5.0x4.0mm)	5040 (5.0x5.0x4.0mm) — Footprint matches, but candidate is 2mm taller.; SMNR5040-2R2MT: Footprint matches, but candidate is 2mm taller.
Inductance	2.2 µH	2.2 µH	-	2.2 µH — Inductance value matches.
Saturation Current A	4.0 A	5.5 A	4.9 A	5.5 A / 4.9 A — Higher saturation current provides more margin.; SMNR5040-2R2MT: Higher saturation current is an upgrade.
Rms Current A	Not Specified	4.3 A	3.8 A	4.3 A / 3.8 A — Candidate Irms is strong, but target's is not specified.; SMNR5040-2R2MT: RMS current is lower than target's saturation current, posing a thermal risk.
Dcr Ohm	0.032 Ω	0.019 Ω	0.019 Ω	0.019 Ω — Lower DCR improves efficiency.; SMNR5040-2R2MT: Lower DCR is an improvement.

Application & sourcing insights

Questions & answers

The best alternative is SWPA5040S2R2NT, which offers better electrical performance in a package with the same footprint. However, it is 2mm taller, so you must verify you have enough vertical clearance in your design.