Is there a pin-compatible replacement for RS-05K4992FT?

Yes, both Yageo RC0805FR-0749K9L and FOJAN FRC0805F4992TS are pin-compatible replacements with matching 0805 packages and key electrical parameters.

What risks should I check before replacing RS-05K4992FT?

Ensure the replacement has the same 49.9kΩ resistance, ±1% tolerance, 125mW power rating, and 0805 package. For alternatives with different specs, verify your circuit's tolerance to changes in resistance or resistor technology (e.g., pulse handling).

RS-05K4992FT Alternatives, Datasheet & Cross Reference | Guangdong Fenghua Advanced Technology Holding Co., Ltd.

RS-05K4992FT is a general-purpose 49.9kΩ 1% 0805 thick film resistor. Several pin-compatible alternatives from manufacturers like Yageo and FOJAN are available, offering direct replacement options for most applications.

AI replacement insight

Electrical risklow

For pin-compatible matches, electrical risk is minimal. It increases for parametric alternatives.

Package risklow

All reviewed candidates use the same 0805 package, ensuring physical compatibility.

Can it be replaced directly?

Yes, Yageo RC0805FR-0749K9L is a direct pin-to-pin replacement for RS-05K4992FT, with identical electrical and physical properties.

Best replacement path

Use Yageo RC0805FR-0749K9L or FOJAN FRC0805F4992TS for a direct, pin-compatible replacement with matching specifications.

Main risk

The main risk is selecting a part with a different resistance value or technology (thin film vs. thick film) without verifying circuit compatibility.

Recommended alternatives

FOJAN FRC0805F4992TS is a pin-compatible alternative with identical key electrical and physical specifications.

View details

Alternative comparison matrix

Feature / factor	RS-05K4992FT	FRC0805F4992TS	RC0805FR-0749K9L	RT0805BRD0749K9L	Compatibility / risk
Package	0805	0805	0805	0805	0805 — Identical package ensures form and fit.; RC0805FR-0749K9L: Identical package ensures form and fit.; RT0805BRD0749K9L: Identical package ensures form and fit.
Resistance	49.9 kΩ	49.9 kΩ	49.9 kΩ	49.9 kΩ	49.9 kΩ — Identical resistance value.; RC0805FR-0749K9L: Identical resistance value.; RT0805BRD0749K9L: Identical resistance value.
Tolerance	1%	1%	1%	0.1%	1% / 0.1% — Identical tolerance.; RC0805FR-0749K9L: Identical tolerance.; RT0805BRD0749K9L: Tighter tolerance provides higher precision.
Power	0.125 W	0.125 W	0.125 W	-	0.125 W — Identical power rating.; RC0805FR-0749K9L: Identical power rating.
Technology	Thick Film	-	Thick Film	Thin Film	Thick Film / Thin Film — Identical resistor technology.; RT0805BRD0749K9L: Different technology may affect pulse handling.
Tcr	±100 ppm/°C	-	-	25 ppm/°C	25 ppm/°C — Lower TCR provides better stability over temperature.

Application & sourcing insights

Questions & answers

Yageo RC0805FR-0749K9L is an excellent alternative, offering an identical 0805 package, 49.9kΩ resistance, ±1% tolerance, and 125mW power rating.