Is there a pin-compatible replacement for 0805W8F400LT5E?

Yes, FRL0805FR400TS is a pin-compatible alternative in the same 0805 package with identical resistance, tolerance, and power rating.

What risks should I check before replacing 0805W8F400LT5E?

Key risks include differences in temperature coefficient (TCR), pulse withstanding capability, and operating temperature range. Always compare datasheets before substitution.

0805W8F400LT5E Alternatives, Datasheet & Cross Reference | UNI-ROYAL

The UNI-ROYAL 0805W8F400LT5E is a 0.4Ω, 1% tolerance, 1/8W thick film chip resistor in a standard 0805 package, used in various electronic circuits.

AI replacement insight

Electrical risklow

Low risk if primary specs match; secondary specs like TCR should be checked.

Package risklow

Low risk for candidates with the same 0805 package.

Sourcing riskmedium

Availability and lead time of alternatives should be confirmed with distributors.

Can it be replaced directly?

Yes, FRL0805FR400TS is a direct parametric match and a potential drop-in replacement, pending full datasheet review.

Best replacement path

The most direct replacement path is to use a resistor with identical specifications, such as FRL0805FR400TS.

Main risk

The main risk is overlooking secondary parameters like Temperature Coefficient (TCR) or pulse handling, which can affect performance in precision or high-stress applications.

Recommended alternatives

Strong pin-to-pin alternative with identical resistance, tolerance, power rating, and 0805 package.

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Alternative comparison matrix

Feature / factor	0805W8F400LT5E	FRL0805FR400TS	FRL0805JR400TS	FRL0805FR390TS	Compatibility / risk
Package	0805	0805	0805	0805	0805 — Identical 0805 package ensures form-fit compatibility.; FRL0805JR400TS: Package is a matching 0805.; FRL0805FR390TS: Package is a matching 0805.
Resistance	0.4 Ω	0.4 Ω	0.4 Ω	0.39 Ω	0.4 Ω / 0.39 Ω — Resistance value is identical.; FRL0805JR400TS: Resistance value is identical.; FRL0805FR390TS: Resistance is 2.5% lower than target. Requires circuit evaluation.
Tolerance	±1%	±1%	±5%	±1%	±1% / ±5% — Resistance tolerance is identical.; FRL0805JR400TS: Tolerance is wider, which may not be acceptable for precision circuits.; FRL0805FR390TS: Resistance tolerance is identical.
Power	0.125 W	0.125 W	0.125 W	0.125 W	0.125 W — Power rating is identical.; FRL0805JR400TS: Power rating matches target. Note: artifact spec has a likely typo of 1W, but summary/ES confirm 1/8W.; FRL0805FR390TS: Power rating matches target. Note: artifact spec has a likely typo of 1W, but summary/ES confirm 1/8W.
Technology	Thick Film	Thick Film	-	-	Thick Film — Component technology is the same.

Application & sourcing insights

Questions & answers

FRL0805FR400TS by FOJAN is a strong candidate, matching key electrical parameters and package size. However, always verify the full datasheet for secondary parameters.