Is there a pin-compatible replacement for RC0805FR-0749R9L?

Yes, several parts share the 0805 package, making them physically compatible. For example, RC0805FR-0747RL is a form-fit match. However, its resistance is 47Ω, not 49.9Ω, so electrical compatibility must be verified by an engineer.

What risks should I check before replacing RC0805FR-0749R9L?

Key risks include package size mismatch, lower power rating, and resistance deviation. Ensure any substitute has an 0805 package, a power rating of at least 1/8W (0.125W), and a resistance value close enough to 49.9Ω for your circuit's needs.

RC0805FR-0749R9L Alternatives, Datasheet & Cross Reference | Yageo

Yageo's RC0805FR-0749R9L is a standard 49.9Ω, 1% tolerance, 1/8W thick film resistor in an 0805 package. When seeking alternatives, focus on matching the package, power rating, and resistance value.

AI replacement insight

Electrical riskmedium

Resistance variation is common and requires circuit analysis.

Package riskhigh

Using a non-0805 package requires a new PCB layout.

Sourcing risklow

0805 resistors are common, but the 49.9Ω value may be less available than standard E24 values.

Can it be replaced directly?

No exact drop-in replacement with identical parameters was found among the candidates. The closest options require engineering review due to differences in resistance or package.

Best replacement path

The most viable path is finding a part with the same 0805 package and 1/8W power rating, while allowing for a slight resistance variation, such as Yageo's RC0805FR-0747RL (47Ω).

Main risk

The primary risk is using a substitute with a lower power rating or a different package size, which can lead to component failure or require board redesign.

Recommended alternatives

A strong alternative in the same 0805 package and power rating, but with a 47Ω resistance instead of 49.9Ω.

View details

Alternative comparison matrix

Feature / factor	RC0805FR-0749R9L	RC0805FR-0747RL	FRC0603F49R9TS	Compatibility / risk
Resistance	49.9Ω	47Ω	-	49.9Ω — matched
Package	0805	0805	-	0603 — Smaller package requires layout change.
Power	0.125W	0.125W	-	0.1W — Lower power rating is a downgrade.
Tolerance	±1%	±1%	-	±1% — matched
Tcr	±100 ppm/°C	-	±100 ppm/°C	±100 ppm/°C — matched

Application & sourcing insights

Questions & answers

The Yageo RC0805FR-0747RL is a strong alternative. It matches the package, power rating, and manufacturer series, but has a 47Ω resistance. Engineers must verify if this ~6% resistance change is acceptable for the application.