Is there a pin-compatible replacement for RT0603BRD07124KL?

Several candidates like RT0603BRD07121KL are pin-compatible in the 0603 package, but require review of electrical parameters like resistance and TCR before use.

What risks should I check before replacing RT0603BRD07124KL?

Key risks include changes in circuit accuracy due to different resistance values, and reduced stability over temperature if a part with a higher TCR (e.g., 50ppm/°C) is used.

RT0603BRD07124KL Alternatives, Datasheet & Cross Reference | Yageo

Yageo's RT0603BRD07124KL is a precision 0603 thin-film resistor with 124kΩ resistance, 0.1% tolerance, and a 25ppm/°C TCR. Finding a direct drop-in requires matching these tight specifications.

AI replacement insight

Electrical riskmedium

Substituting with a different resistance or higher TCR can impact circuit accuracy and stability.

Package risklow

All viable candidates share the same 0603 package, ensuring physical compatibility.

Can it be replaced directly?

No exact direct replacement was found. The closest candidates have minor parametric differences in resistance or temperature coefficient (TCR).

Best replacement path

The best path is finding another thin-film 0603 resistor with matching TCR and tolerance, like RT0603BRD07121KL, if the ~2.4% resistance difference is acceptable.

Main risk

The main risk is performance degradation from using a substitute with a different resistance value or a higher, less stable TCR.

Recommended alternatives

A strong parametric match with identical precision specs but a slightly different resistance value (121kΩ vs 124kΩ).

View details

Alternative comparison matrix

Feature / factor	RT0603BRD07124KL	RT0603BRD07121KL	RT0603BRE07124KL	RT0603BRE07120KL	Compatibility / risk
Package	0603	0603	0603	0603	0603 — Form factor matches.; RT0603BRE07124KL: Form factor matches.; RT0603BRE07120KL: Form factor matches.
Resistance	124 kΩ	121 kΩ	124 kΩ	120 kΩ	121 kΩ / 124 kΩ / 120 kΩ — Resistance is ~2.4% lower.; RT0603BRE07124KL: Resistance value matches.; RT0603BRE07120KL: Resistance is ~3.2% lower.
Tolerance	±0.1%	±0.1%	±0.1%	±0.1%	±0.1% — Precision tolerance matches.; RT0603BRE07124KL: Precision tolerance matches.; RT0603BRE07120KL: Precision tolerance matches.
Tcr	25 ppm/°C	25 ppm/°C	50 ppm/°C	50 ppm/°C	25 ppm/°C / 50 ppm/°C — TCR matches.; RT0603BRE07124KL: Candidate has a higher (worse) TCR.; RT0603BRE07120KL: Candidate has a higher (worse) TCR.
Technology	Thin Film	-	Thin Film	-	Thin Film — Technology matches.

Application & sourcing insights

Questions & answers

RT0603BRD07121KL is a strong candidate if a 121kΩ resistance is acceptable. It matches the critical 0.1% tolerance and 25ppm/°C TCR.