What risks should I check before replacing WR04X182JTL?

Verify the replacement has the same resistance (1.8kΩ), an equal or higher power rating (1/16W), and the same 0402 package. While a tighter tolerance (e.g., 1%) is a safe upgrade, ensure your circuit does not rely on the wider 5% tolerance range.

WR04X182JTL Alternatives, Datasheet & Cross Reference | Walsin Technology Corporation

WR04X182JTL is a general-purpose 1.8kΩ, 5% tolerance, 1/16W resistor in a standard 0402 package. Several pin-compatible alternatives with tighter tolerance are available.

AI replacement insight

Electrical risklow

Low risk when matching resistance, power, and voltage. Tighter tolerance is a safe upgrade.

Package risklow

Low risk as 0402 is a standard package with consistent dimensions across manufacturers.

Can it be replaced directly?

Direct replacement for WR04X182JTL should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Start with Datasheet verified or Strong match candidates for WR04X182JTL, then review parametric alternatives for package and electrical fit.

Main risk

The main risk is selecting a part with a different resistance value (e.g., 1.96kΩ), which could alter circuit behavior. Always verify the resistance is within the application's required range.

Recommended alternatives

Pin-compatible 1.8kΩ 0402 resistor with a tighter ±1% tolerance, serving as a direct upgrade.

View details

Alternative comparison matrix

Feature / factor	WR04X182JTL	FRC0402F1801TS	FRC0402F1821TS	RC-02K1801FT	Compatibility / risk
Resistance	1.8 kΩ	1.8 kΩ	1.82 kΩ	1.8 kΩ	1.8 kΩ / 1.82 kΩ — Nominal resistance is identical.; FRC0402F1821TS: Value is within target's ±5% tolerance range (1.71kΩ-1.89kΩ).; RC-02K1801FT: Nominal resistance is identical.
Tolerance	±5%	±1%	±1%	±1%	±1% — Candidate has tighter tolerance, which is a safe upgrade.; FRC0402F1821TS: Candidate has tighter tolerance.; RC-02K1801FT: Candidate has tighter tolerance, which is a safe upgrade.
Power	1/16 W	1/16 W	1/16 W	1/16 W	1/16 W — Power rating is identical.; FRC0402F1821TS: Power rating is identical.; RC-02K1801FT: Power rating is identical.
Package	0402 (1005 Metric)	0402	0402	0402	0402 — Package size is identical.; FRC0402F1821TS: Package size is identical.; RC-02K1801FT: Package size is identical.
Tcr	Not specified	±100 ppm/°C	-	-	±100 ppm/°C — Standard TCR, likely matches or exceeds target performance.

Application & sourcing insights

Questions & answers

Verified drop-in options for WR04X182JTL are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.