Is there a pin-compatible replacement for NLC453232T-1R0K-PF?

CMI453215U1R0KT shares the 4532 (1812) package, but it is not a direct functional replacement. Its rated current (0.65A) is much lower than the original's (1.05A), making it a high-risk downgrade.

What risks should I check before replacing NLC453232T-1R0K-PF?

Key risks are package mismatch requiring a PCB redesign, lower current ratings causing overheating, higher DCR reducing efficiency, and different saturation current affecting performance. Always verify these in your specific application.

NLC453232T-1R0K-PF Alternatives, Datasheet & Cross Reference | TDK Electronics AG

The TDK NLC453232T-1R0K-PF is a discontinued 1.0µH inductor. Finding a direct drop-in is challenging, but functional alternatives with superior electricals are available if a PCB redesign is feasible.

AI replacement insight

Electrical riskhigh

High risk of failure or poor performance if using the same-package downgrade.

Package riskhigh

High risk as all electrically suitable alternatives require a PCB redesign.

Can it be replaced directly?

No direct, fully equivalent replacement was found. The only same-package option (CMI453215U1R0KT) is a significant electrical downgrade.

Best replacement path

Redesign for a modern power inductor like the Sunlord WPN series for improved performance.

Main risk

Accepting a major performance downgrade with a same-package part, or undertaking a PCB redesign for a superior functional alternative.

Recommended alternatives

A smaller, electrically superior functional alternative that requires a board redesign.

View details

Alternative comparison matrix

Feature / factor	NLC453232T-1R0K-PF	WPN3012H1R0MT	WPN4020H1R0MT	CMI453215U1R0KT	Compatibility / risk
Package	4532 (1812 inch)	3012	4020	4532 (1812)	3012 / 4020 / 4532 (1812) — Smaller footprint requires PCB redesign.; WPN4020H1R0MT: Different footprint requires PCB redesign.; CMI453215U1R0KT: Package matches, enabling potential drop-in.
Current	1.05 A	2.7 A	5.8 A	0.65 A	2.7 A / 5.8 A / 0.65 A — Higher current rating.; WPN4020H1R0MT: Significantly higher current rating.; CMI453215U1R0KT: Significantly lower rated current.
Dcr Ohm	0.11 Ω	0.045 Ω	0.026 Ω	0.55 Ω	0.045 Ω / 0.026 Ω / 0.55 Ω — Lower DCR improves efficiency.; WPN4020H1R0MT: Much lower DCR improves efficiency.; CMI453215U1R0KT: Much higher DCR will increase power loss.
Tolerance	±10%	±20%	±20%	-	±20% — Wider inductance tolerance.; WPN4020H1R0MT: Wider inductance tolerance.
Inductance H	1.0 µH (±10%)	-	-	1.0 µH (±10%)	1.0 µH (±10%) — Inductance and tolerance match.

Application & sourcing insights

Questions & answers

For a board redesign, Sunlord's WPN4020H1R0MT offers superior current handling and lower resistance. If a drop-in is attempted, CMI453215U1R0KT has the same package but with a major performance downgrade that must be carefully evaluated.