
FH (Guangdong Fenghua Advanced Tech)
Electrically similar alternate with tighter tolerance and higher current, but in a larger 1812 package.
The TDK NLCV32T-221K-PF is an End-of-Life 220µH inductor in a 1210 package. While no direct drop-in replacements are available, several functional alternatives exist with superior electrical characteristics that require a PCB layout change.
Target is 1210 package; all candidates are different sizes (e.g., 1812, 4030), requiring layout changes.
Key parameters like saturation current are unverified. Some candidates have wider inductance tolerance.
No, there are no direct pin-compatible replacements for NLCV32T-221K-PF among the candidates reviewed. All alternatives require a PCB redesign due to different package sizes.
FHW1812IF221JST is the most promising functional alternative due to its similar DCR and tighter tolerance, but it requires a PCB layout change to accommodate the larger 1812 package.
The primary risk is the package mismatch, which makes a direct drop-in replacement impossible and necessitates a board redesign.

FH (Guangdong Fenghua Advanced Tech)
Electrically similar alternate with tighter tolerance and higher current, but in a larger 1812 package.
| Feature / factor | NLCV32T-221K-PF | FHW1812IF221JST | SWPA4030S221MT | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3225 (1210 Metric) | 1812 (4.5x3.2mm) | 4030 (4.0x4.0mm) | 1812 (4.5x3.2mm) / 4030 (4.0x4.0mm) — Requires PCB redesign.; SWPA4030S221MT: Requires PCB redesign. | |
| Inductance | 220µH ±10% | 220µH ±5% | 220µH ±20% | 220µH ±5% / 220µH ±20% — Tighter tolerance.; SWPA4030S221MT: Wider tolerance. | |
| Current | 0.08A | 0.17A | 0.5A | 0.17A / 0.5A — Higher rated current.; SWPA4030S221MT: Higher rated current. | |
| Dcr | 8.4Ω | 8.0Ω | 1.26Ω | 8.0Ω / 1.26Ω — Very similar DCR.; SWPA4030S221MT: Lower DCR improves efficiency. | |
| Saturation Current | Not specified | Not specified | 0.4A | Not specified / 0.4A — Must be verified from datasheet.; SWPA4030S221MT: Target Isat unknown. |
The best functional alternative is FHW1812IF221JST. It offers tighter tolerance (±5%) and higher current (170mA) with a similar DCR, but requires a board redesign for its larger 1812 package.