Needs validationmedium risk
Cross-vendor alternative from TDK with identical inductance, superior current handling and DCR, but requires a different PCB footprint.
Best Alternatives to SM4532-4R7MT
SM4532-4R7MT is a 4.7µH unshielded power inductor in a 4532 package, common in DC-DC converters. While no direct drop-in replacements were found, alternatives exist with better performance but require PCB layout changes.
AI replacement insight
Electrical risklow
Suitable alternatives offer superior current and DCR ratings.
Package riskhigh
All strong electrical alternatives require a PCB layout change.
Can it be replaced directly?
No direct drop-in replacement was identified. All potential candidates have different package footprints, requiring a PCB layout change.
Best replacement path
For new designs or board revisions, consider TDK's SPM6530T-4R7M-HZR for its superior electrical performance and shielding. No direct drop-in replacement was found.
Main risk
The primary risk is the package mismatch. No candidates share the exact 4532 footprint of the target part, which prevents a drop-in replacement.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | SM4532-4R7MT | SPM6530T-4R7M-HZR | SM7850-4R7MT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 4532 | SPM6530 | SM7850 | SPM6530 / SM7850 — Different footprint, requires layout change.; SM7850-4R7MT: Larger footprint, requires layout change. | |
| Manufacturer Name | SXN | TDK | - | TDK — Cross-vendor alternative. | |
| Inductance | 4.7 µH | 4.7 µH | - | 4.7 µH — matched | |
| Saturation Current A | 2.0 A | 6.2 A | 5.0 A | 6.2 A / 5.0 A — Significantly higher current handling.; SM7850-4R7MT: Significantly higher current handling. | |
| Dcr Ohm | 0.08 Ω | 0.039 Ω | 0.026 Ω | 0.039 Ω / 0.026 Ω — Lower resistance improves efficiency.; SM7850-4R7MT: Lower resistance improves efficiency. | |
| Shielding | Unshielded | Shielded | - | Shielded — Improves EMI performance. | |
| Inductance H | 4.7e-06 H | - | 4.7e-06 H | 4.7e-06 H — matched |
Application & sourcing insights
Questions & answers
SPM6530T-4R7M-HZR from TDK offers significantly better current ratings and lower resistance in a shielded package. However, it has a different footprint and requires a board redesign.