Is there a pin-compatible replacement for RC0402FR-0742K2L?

Yes, several parts like 0402WGF4222TCE share the same 0402 package and are pin-compatible. However, you must verify electrical parameters. 0402WGF4222TCE is the most likely functional equivalent, but its temperature coefficient (TCR) needs to be confirmed from its datasheet.

What risks should I check before replacing RC0402FR-0742K2L?

The main risk is the resistance value mismatch. Many alternatives are close but not exact. For precision circuits, also verify the temperature coefficient (TCR) and tolerance are suitable for your application. Always check the candidate's datasheet.

RC0402FR-0742K2L Alternatives, Datasheet & Cross Reference | Yageo

RC0402FR-0742K2L is a general-purpose 42.2kΩ 1% 0402 chip resistor. While direct, identical replacements exist, many available alternatives have slightly different resistance values that require engineering review.

AI replacement insight

Electrical riskmedium

Most candidates have different resistance values, requiring circuit analysis.

Package risklow

All candidates use the same 0402 package, ensuring physical compatibility.

Can it be replaced directly?

No guaranteed drop-in replacement has been identified without engineering review. 0402WGF4222TCE is the strongest candidate, pending TCR verification.

Best replacement path

Use 0402WGF4222TCE if its TCR is verified to be ±100 ppm/°C or better. Otherwise, CRCW040240K2FKED is a strong choice if a ~5% resistance drop is acceptable.

Main risk

Resistance deviation from the target's 42.2kΩ value is the primary risk across most candidates.

Recommended alternatives

A form-fit match with the same resistance, tolerance, and power, but requires TCR verification from the datasheet.

View details

Alternative comparison matrix

Feature / factor	RC0402FR-0742K2L	0402WGF4222TCE	CRCW040240K2FKED	RC0402FR-0739K2L	Compatibility / risk
Resistance	42.2 kΩ	42.2 kΩ	40.2 kΩ	39.2 kΩ	42.2 kΩ / 40.2 kΩ / 39.2 kΩ — Exact match.; CRCW040240K2FKED: Resistance is ~4.7% lower than target.; RC0402FR-0739K2L: Resistance is ~7.1% lower than target.
Tolerance	±1%	±1%	-	±1%	±1% — Exact match.; RC0402FR-0739K2L: Exact match.
Power	0.0625 W	0.0625 W	0.063 W	-	0.0625 W / 0.063 W — Matches target power rating.; CRCW040240K2FKED: Slightly higher power rating is acceptable.
Package	0402	0402	0402	0402	0402 — Same package ensures form-fit compatibility.; CRCW040240K2FKED: Same package ensures form-fit compatibility.; RC0402FR-0739K2L: Same package ensures form-fit compatibility.
Tcr	±100 ppm/°C	Unknown	-	±100 ppm/°C	Unknown / ±100 ppm/°C — Candidate TCR not specified, requires datasheet verification.; RC0402FR-0739K2L: Exact match.
Application	Commercial	-	AEC-Q200	-	AEC-Q200 — Automotive qualification may offer higher reliability.

Application & sourcing insights

Questions & answers

The best alternative is 0402WGF4222TCE, as it matches resistance, power, and package, but you must verify its TCR from the datasheet. For a pre-verified option, CRCW040240K2FKED is a strong choice if a ~5% resistance difference is acceptable.