Best Alternatives to 0603WAF3903T5E

Package: 0603UNI-ROYALChip Resistor - Surface MountResistance: 390 kΩTolerance: ±1%Power Rating: 0.1 WPackage / Case: 0603 (1608 Metric)Technology: Thick Film

0603WAF3903T5E is a 390kΩ ±1% 0603 thick-film resistor. The closest listed alternate is Yageo RC0603FR-07390KL, pending FAE review.

AI replacement insight

Electrical riskmedium

Power margin and value tolerance need review.

Package risklow

Kept candidates are 0603, 2 terminal.

Firmware risklow

Passive resistor; no firmware.

Sourcing riskmedium

PDF checks are still pending.

Can it be replaced directly?

RC0603FR-07390KL is the closest match, but needs power and PDF review.

Best replacement path

Use exact 390kΩ first; use 402kΩ or 360kΩ only after circuit tolerance checks.

Main risk

Resistance changes alter bias, gain, timing, or divider ratios.

Recommended alternatives

3

Alternative comparison matrix

Feature / factor0603WAF3903T5ERC0603FR-07390KL0603WAF4023T5ERC0603FR-07360KLCompatibility / risk
Package06030603--0603 — same size
Pinout2 terminal2 terminal--2 terminal — chip resistor
Resistance390kΩ390kΩ--402kΩ — +3.1%
Tolerance±1%±1%--±1% — same
Power0.1W0.1W--0.1W — no 1.5x margin
Tcr±100ppm/°C-±100ppm/°C-±100ppm/°C — same

Application & sourcing insights

Questions & answers

Verified drop-in options for 0603WAF3903T5E 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.