Is there a pin-compatible replacement for FTW1608FE4R7KT?

AHW1608FE4R7KTF from APV shares the same 0603 package and is likely pin-compatible. A full review is required because its saturation current is missing from the datasheet, which is a critical parameter.

What risks should I check before replacing FTW1608FE4R7KT?

Key risks include: 1) Saturation Current (Isat) must be ≥ 400mA. 2) DC Resistance (DCR) affects efficiency. 3) Package size must match the 0603 footprint for a drop-in replacement.

FTW1608FE4R7KT Alternatives, Datasheet & Cross Reference | Shenzhen CJiang Technology Co., Ltd.

Find substitutes for the FTW1608FE4R7KT, a 4.7µH, 420mA inductor in a 0603 package. This page analyzes potential alternatives, highlighting key differences in package, current ratings, and DCR.

AI replacement insight

Electrical riskmedium

One candidate has a missing saturation current spec, which is critical for power applications.

Package riskhigh

Many functional alternatives require a PCB redesign due to different package sizes.

Can it be replaced directly?

No confirmed direct drop-in replacement has been identified. AHW1608FE4R7KTF is a strong candidate but lacks a specified saturation current, a critical parameter that must be verified.

Best replacement path

The best path is AHW1608FE4R7KTF, which matches the 0603 package and key electricals, but requires verification of its saturation current.

Main risk

The main risk is component saturation. The target has a 400mA saturation current; any replacement must meet or exceed this value to avoid performance issues.

Recommended alternatives

Matches 0603 package and key specs, but saturation current is unspecified and DCR is higher.

View details

Alternative comparison matrix

Feature / factor	FTW1608FE4R7KT	AHW1608FE4R7KTF	WIP252012P-4R7ML	Compatibility / risk
Package	0603	0603	2520 (1008)	0603 / 2520 (1008) — Package size matches.; WIP252012P-4R7ML: Larger package requires PCB redesign.
Inductance	4.7µH	4.7µH	4.7µH	4.7µH — Inductance matches.; WIP252012P-4R7ML: Inductance matches.
Current	400mA	Missing	1.55A / 1.9A	Missing / 1.55A / 1.9A — Saturation current (Isat) is not specified.; WIP252012P-4R7ML: Rated and saturation currents are significantly higher.
Resistance	790mΩ	970mΩ	196mΩ	970mΩ / 196mΩ — DC Resistance is higher, leading to more loss.; WIP252012P-4R7ML: DC Resistance is much lower, improving efficiency.
Tolerance	±10%	-	±20%	±20% — Tolerance is wider.

Application & sourcing insights

Questions & answers

AHW1608FE4R7KTF is the closest alternative, matching the 0603 package, 4.7µH inductance, and 420mA rated current. However, its saturation current is not specified and must be confirmed for your application.