Is there a pin-compatible replacement for FHW0603UFR22JST?

No pin-compatible replacement with equal or better electrical specifications was identified. Sunlord's SDCL1608CR22JTDF is pin-compatible (0603 package) but is a significant downgrade, with a much lower current rating (0.2A vs 0.9A) and higher resistance.

What risks should I check before replacing FHW0603UFR22JST?

Before replacing, you must verify three key parameters: 1) Package size, as many alternatives are larger and require a new PCB layout. 2) Current rating (Irms), as a lower rating can cause overheating and failure. 3) DC Resistance (DCR), as higher DCR reduces efficiency.

FHW0603UFR22JST Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

Finding a replacement for the FHW0603UFR22JST inductor requires careful consideration of electrical and mechanical trade-offs. While no direct drop-in upgrade is available, several functional alternatives offer superior performance in different packages.

AI replacement insight

Electrical riskhigh

Same-package options may have significantly lower current ratings or higher DCR, risking circuit failure.

Package riskmedium

Electrically superior parts exist in larger packages (1008, 1210), requiring board redesign.

Can it be replaced directly?

No direct, drop-in replacement with equivalent or better performance was found. Sunlord's SDCL1608CR22JTDF matches the package and inductance but has a critically lower current rating, posing a high risk.

Best replacement path

Functional alternatives like TDK's TMS322512ALM-R22MTAA offer superior electrical performance but require a PCB layout change due to a larger package.

Main risk

The primary risk is finding a part in the same 0603 package that meets the 900mA current rating and low DCR of the original part.

Recommended alternatives

Electrically superior alternative with higher current and lower DCR, but requires a board redesign for its larger 1008 package.

View details

Alternative comparison matrix

Feature / factor	FHW0603UFR22JST	TMS322512ALM-R22MTAA	WPN252012HR24MT	SDCL1608CR22JTDF	Compatibility / risk
Package	0603	3225 (1210 Metric)	2520 (1008 Metric)	0603 (1608 Metric)	3225 (1210 Metric) / 2520 (1008 Metric) / 0603 (1608 Metric) — Different, larger package requires PCB redesign.; WPN252012HR24MT: Different package, requires PCB redesign.; SDCL1608CR22JTDF: Package size matches.
Current	0.9A	7.0A	4.5A	0.2A	7.0A / 4.5A / 0.2A — Significantly higher current rating.; WPN252012HR24MT: Much higher current rating.; SDCL1608CR22JTDF: Significantly lower current rating.
Dcr	0.2Ω	0.011Ω	0.019Ω	2.4Ω	0.011Ω / 0.019Ω / 2.4Ω — Significantly lower DCR, improves efficiency.; WPN252012HR24MT: Much lower DCR, improves efficiency.; SDCL1608CR22JTDF: Significantly higher DCR, will increase power loss.
Inductance	220nH	220nH	240nH	220nH	220nH / 240nH — Inductance value matches.; WPN252012HR24MT: Slightly higher inductance.; SDCL1608CR22JTDF: Inductance value matches.
Tolerance	±5%	±20%	±20%	-	±20% — Wider tolerance than target.; WPN252012HR24MT: Wider tolerance than target.

Application & sourcing insights

Questions & answers

The best alternative depends on your design flexibility. For superior electrical performance, TDK's TMS322512ALM-R22MTAA is a strong choice if you can change your PCB layout to a 1210 package. If you cannot change the layout, no suitable upgrade was found.