Is there a pin-compatible replacement for PNLS6045-470M 47UH?

TAIYO YUDEN NR6045T470M shares the same 6045 package and pinout, but it is not a direct replacement. It has a lower saturation current (1.3A vs 1.9A) and a different temperature range, which must be verified for your application.

What risks should I check before replacing PNLS6045-470M 47UH?

Key risks are: 1) Saturation Current: Ensure the replacement's current rating meets or exceeds the original's 1.9A. 2) DCR: A different DCR can affect efficiency. 3) Package: Verify the footprint matches your PCB layout. 4) Temperature Range: Ensure it covers your application's environment.

PNLS6045-470M 47UH Alternatives, Datasheet & Cross Reference | DMBJ

Finding a replacement for the DMBJ PNLS6045-470M 47UH inductor involves balancing package compatibility with electrical performance. While no direct drop-in upgrade exists, several functional alternatives offer superior current handling if a board redesign is possible.

AI replacement insight

Electrical riskhigh

Using same-package alternatives with lower current ratings can lead to circuit failure.

Package riskhigh

Most electrically superior parts are in different packages, requiring a board redesign.

Can it be replaced directly?

No direct, pin-to-pin upgrade has been identified. The closest form-factor match, NR6045T470M, has a lower current rating and a different operating temperature range, posing a significant risk.

Best replacement path

For new designs, use an electrically superior part like SXN SMMS0850-470M. For existing boards, TAIYO YUDEN NR6045T470M is in the same package but is an electrical downgrade requiring careful validation.

Main risk

The primary risk is either electrical (lower current handling with same-package parts) or mechanical (requiring a PCB respin for electrically superior parts).

Recommended alternatives

An electrically superior 47µH inductor with higher current handling, but in a different package requiring board redesign.

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Alternative comparison matrix

Feature / factor	PNLS6045-470M 47UH	SMMS0850-470M	SMMS1050-470M	NR6045T470M	Compatibility / risk
Package	6045	0850	1050	6045	0850 / 1050 / 6045 — Different footprint requires board redesign.; SMMS1050-470M: Different footprint requires board redesign.; NR6045T470M: Same package and pin count.
Inductance	47µH	47µH	47µH	47µH	47µH — Inductance matches.; SMMS1050-470M: Inductance matches.; NR6045T470M: Inductance matches.
Saturation Current A	1.9A	4.0A	4.5A	1.3A	4.0A / 4.5A / 1.3A — Higher current rating is a significant upgrade.; SMMS1050-470M: Higher current rating is a significant upgrade.; NR6045T470M: Candidate current is lower, poses circuit risk.
Dcr Ohm	0.245Ω	0.19Ω	0.11Ω	0.211Ω	0.19Ω / 0.11Ω / 0.211Ω — Lower DCR improves efficiency.; SMMS1050-470M: Much lower DCR improves efficiency.; NR6045T470M: Lower DCR improves efficiency.
Temperature	-40°C to +85°C	-55°C to +125°C	-	-25°C to +125°C	-55°C to +125°C / -25°C to +125°C — Wider operating range is an upgrade.; NR6045T470M: Higher minimum operating temp is a risk.

Application & sourcing insights

Questions & answers

If you can change your PCB layout, SXN SMMS0850-470M is a strong functional alternative with better current and DCR. If you cannot change the layout, TAIYO YUDEN NR6045T470M is a potential but risky option due to its lower current rating.