What risks should I check before replacing FRC1206J183 TS?

The primary risk to check is power dissipation. While candidates match the 0.25W rating, ensure there is sufficient design margin. Also, confirm the tighter ±1% tolerance does not adversely affect circuit behavior if it relies on the original 5% range.

FRC1206J183 TS Alternatives, Datasheet & Cross Reference | FOJAN

FRC1206J183 TS is a general-purpose 18kΩ 5% 0.25W 1206 thick film resistor. Several pin-compatible alternatives with tighter tolerance (1%) are available, but require engineering review of application power requirements before use.

AI replacement insight

Electrical risklow

Candidates offer tighter tolerance. Power rating matches but lacks a 1.5x safety margin, requiring review.

Package risklow

All recommended substitutes use the same 1206 package, ensuring physical compatibility.

Can it be replaced directly?

Direct replacement for FRC1206J183 TS should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

Use a 1% tolerance part like Yageo's RC1206FR-0718KL after verifying the application's power dissipation provides sufficient margin.

Main risk

The main risk is insufficient power derating if the original part operates close to its 0.25W limit in the application.

Recommended alternatives

A pin-compatible alternative with a tighter ±1% tolerance. Engineering review of power dissipation is recommended.

View details

Alternative comparison matrix

Feature / factor	FRC1206J183 TS	FRC1206F1802TS	RC1206FR-0718KL	1206W4F1802T5E	Compatibility / risk
Package	1206	1206	1206	1206	1206 — Same EIA package size ensures form and fit compatibility.; RC1206FR-0718KL: Same EIA package size ensures form and fit compatibility.; 1206W4F1802T5E: Same EIA package size ensures form and fit compatibility.
Resistance	18kΩ	18kΩ	18kΩ	18kΩ	18kΩ — Resistance value is identical.; RC1206FR-0718KL: Resistance value is identical.; 1206W4F1802T5E: Resistance value is identical.
Tolerance	±5%	±1%	±1%	±1%	±1% — Tighter tolerance is a direct upgrade.; RC1206FR-0718KL: Tighter tolerance is a direct upgrade.; 1206W4F1802T5E: Tighter tolerance is a direct upgrade.
Power	0.25W	0.25W	0.25W	0.25W	0.25W — Power rating matches target. Verify application derating.; RC1206FR-0718KL: Power rating matches target. Verify application derating.; 1206W4F1802T5E: Power rating matches target. Verify application derating.
Tcr	±100 ppm/°C	±100 ppm/°C	±100 ppm/°C	missing	±100 ppm/°C / missing — Temperature coefficient is identical.; RC1206FR-0718KL: Temperature coefficient is identical.; 1206W4F1802T5E: TCR not in primary specs, but other evidence suggests ±100 ppm/°C. Verify from datasheet.

Application & sourcing insights

Questions & answers

Verified drop-in options for FRC1206J183 TS 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.