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Best Alternatives to WI0603LD470KST-HF

Package: 0603 (1608 Metric)LEDdynamics, Inc.ChokesInductance: 47 µHTolerance: ±10%Package / Case: 0603 (1608 Metric)DC Resistance (Rdc): 12.00 Ω (max)Rated Current (Irms): 100 mA

The DDY WI0603LD470KST-HF is a 47µH wire-wound chip inductor in a compact 0603 package. While no direct pin-compatible replacements have been identified, several functional alternatives exist with superior electrical performance in larger packages, suitable for new designs or board revisions.

AI replacement insight

Package riskhigh

No candidates match the 0603 package, requiring a board redesign.

Electrical risklow

Alternatives have matching inductance and superior current/DCR ratings, but SRF and Isat must be verified.

Sourcing risklow

Multiple functional alternatives are available from different manufacturers.

Can it be replaced directly?

No direct, drop-in replacement for WI0603LD470KST-HF has been found. All candidates require a board layout change due to different package sizes.

Best replacement path

For new designs, select a functional alternative like NR6045T470M based on space and current needs. For existing boards, a redesign is required.

Main risk

The main risk is the package mismatch. The target is a tiny 0603 SMD, while all functional alternatives are significantly larger.

Recommended alternatives

4
NR6045T470M package
NR6045T470M

TAIYO YUDEN

Needs validationhigh risk

Functional alternative from Taiyo Yuden with matching inductance in a larger 6045 package.

View details

Alternative comparison matrix

Feature / factorWI0603LD470KST-HFNR6045T470MPSPHAQ127-470MSLH0704S470MTTCompatibility / risk
Package0603 (1608 Metric)6045SMD, 12x12mm7.3 mm x 7.3 mm6045 / SMD, 12x12mm / 7.3 mm x 7.3 mm / Horizontal Toroidal — Significantly larger footprint than target 0603.; PSPHAQ127-470M: Significantly larger footprint than target 0603.; SLH0704S470MTT: Significantly larger footprint than target 0603.; SLT050125T470MUB: Candidate is Through-Hole, target is 0603 SMD.
Inductance47 µH47 µH47 µH47 µH47 µH — matched; PSPHAQ127-470M: matched; SLH0704S470MTT: matched; SLT050125T470MUB: matched
Current100 mA1.3 A3.2 A1.0 A1.3 A / 3.2 A / 1.0 A / 3.5 A — Significantly higher current rating.; PSPHAQ127-470M: Significantly higher current rating.; SLH0704S470MTT: Significantly higher current rating.; SLT050125T470MUB: Significantly higher current rating.
Dcr12.0 Ω211 mΩ100 mΩ266 mΩ211 mΩ / 100 mΩ / 266 mΩ / 38 mΩ — Significantly lower DC resistance.; PSPHAQ127-470M: Significantly lower DC resistance.; SLH0704S470MTT: Significantly lower DC resistance.; SLT050125T470MUB: Significantly lower DC resistance.
ApplicationN/A-AEC-Q200-AEC-Q200 — Candidate is automotive qualified.

Application & sourcing insights

Questions & answers

No direct drop-in replacement is available. For new designs, parts like Sunltech's SLH0704S470MTT or Taiyo Yuden's NR6045T470M offer the same inductance with much higher current ratings, but in larger packages requiring a new PCB layout.