Is there a pin-compatible replacement for 1206W4F499KT5E?

While several 1206 package resistors exist, no direct pin-for-pin replacement with identical 4.99Ω resistance and sufficient power overhead per our rules was found. Candidates require engineering review.

What risks should I check before replacing 1206W4F499KT5E?

The primary risk is the change in resistance value. Alternatives like the CRCW12064R70FKEAHP have 4.7Ω resistance, a ~6% difference from the 4.99Ω target. Verify this is acceptable for your application's performance.

1206W4F499KT5E Alternatives, Datasheet & Cross Reference | UNI-ROYAL

Searching for a replacement for the UNI-ROYAL 1206W4F499KT5E? This 4.99Ω, 1%, 0.25W 1206 chip resistor has several potential alternatives that require careful review of resistance and power ratings.

AI replacement insight

Electrical riskmedium

Resistance value differs by ~6%, requiring validation.

Package risklow

All suggested alternatives share the same 1206 package.

Can it be replaced directly?

No direct, drop-in replacement for the 1206W4F499KT5E was found that meets all engineering rules, primarily due to a strict power rating requirement.

Best replacement path

The best path is to evaluate parametric alternatives like the Vishay CRCW12064R70FKEAHP, which offers higher power and AEC-Q200 qualification but has a 4.7Ω resistance.

Main risk

The main risk is the resistance deviation from 4.99Ω to 4.7Ω, which may affect circuit performance.

Recommended alternatives

An AEC-Q200 qualified 1206 resistor with higher 0.75W power, but different 4.7Ω resistance.

View details

Alternative comparison matrix

Feature / factor	1206W4F499KT5E	CRCW12064R70FKEAHP	HP06W2F470KT5E	Compatibility / risk
Package	1206	1206	1206	1206 — Same EIA 1206 package.; HP06W2F470KT5E: Same EIA 1206 package.
Resistance	4.99Ω	4.7Ω	4.7Ω	4.7Ω — Resistance differs by ~6%, requires circuit validation.; HP06W2F470KT5E: Resistance differs by ~6%, requires circuit validation.
Power	0.25W	0.75W	0.5W	0.75W / 0.5W — Significantly higher power rating provides more margin.; HP06W2F470KT5E: Higher power rating provides more design margin.
Application	Standard	AEC-Q200	-	AEC-Q200 — Automotive qualification is an upgrade.
Tolerance	±1%	-	±1%	±1% — Same resistance tolerance.

Application & sourcing insights

Questions & answers

Vishay CRCW12064R70FKEAHP is a potential alternative with a higher power rating (0.75W) and AEC-Q200 qualification, but its resistance is 4.7Ω. The suitability depends on your circuit's tolerance to this resistance change.