
INPAQ
Similar 2520 package but with slightly lower current ratings and higher DCR; requires engineering review.
Finding a substitute for the APH252010T4R7M, a 4.7µH power inductor in a compact 2520 package, involves balancing physical size with electrical performance. While several alternatives exist, careful attention must be paid to current ratings and package compatibility.
Using a part with lower current ratings can lead to saturation or overheating. Higher DCR reduces efficiency.
Using a functional alternate with a different package requires a costly and time-consuming board redesign.
No direct, drop-in replacement with equivalent or better specifications has been identified. The closest candidate, WIP252012P-4R7ML, has a compatible package but slightly lower current ratings and requires engineering validation.
WIP252012P-4R7ML is the closest form-fit candidate but requires review for its slightly lower current ratings. For new designs, parts like FXL0840-4R7-M offer superior performance but need a different PCB layout.
The primary risk is finding a part with a compatible 2520 package that also meets the 2.0A saturation and 1.6A RMS current ratings. Most same-size parts have lower ratings, and higher-rated parts come in larger packages.

INPAQ
Similar 2520 package but with slightly lower current ratings and higher DCR; requires engineering review.
| Feature / factor | APH252010T4R7M | WIP252012P-4R7ML | ANR252012T4R7M | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2520 | 2520 (1008) | 2520 (1008 Metric) | 2520 (1008) / 2520 (1008 Metric) — Form factor is compatible.; ANR252012T4R7M: Form factor is compatible. | |
| Inductance | 4.7µH | 4.7µH | - | 4.7µH — Inductance value matches. | |
| Saturation Current | 2.0A | 1.9A | 1.25A | 1.9A / 1.25A — Slightly lower saturation current.; ANR252012T4R7M: Significantly lower saturation current. | |
| Current | 1.6A | 1.55A | 0.92A | 1.55A / 0.92A — Slightly lower heat rating current (Irms).; ANR252012T4R7M: Significantly lower heat rating current (Irms). | |
| Dcr | 145mΩ | 196mΩ | 373mΩ | 196mΩ / 373mΩ — Higher DCR will increase power loss.; ANR252012T4R7M: Much higher DCR will significantly increase power loss. |
The best alternative depends on your design constraints. For an existing PCB, WIP252012P-4R7ML is the closest option in the same package, but you must verify if its slightly lower current ratings (1.9A Isat, 1.55A Irms) are acceptable for your application. For new designs, consider a larger part like FXL0840-4R7-M for superior electrical performance.