
FOJAN
Similar specs but lacks power safety margin. Resistance is 2.4% lower. Requires engineering review.
Finding a substitute for the UNI-ROYAL 0603WAF8870T5E resistor requires matching its 887Ω resistance and ±1% tolerance. Critically, any replacement must have a higher power rating for reliable operation.
Substitutes with the same power rating lack the required 1.5x safety margin.
The 0603 package is a common industry standard with many options.
Finding a part with both matching resistance and higher power may require a broader search.
No direct replacement meeting engineering safety rules was found. A part with at least a 0.15W power rating is required for reliability.
Search for a thick film, 0603 resistor near 887Ω (±1%) with a power rating of at least 0.15W (e.g., 1/5W or 0.2W).
Insufficient power rating in substitutes, which can lead to overheating and premature component failure.

FOJAN
Similar specs but lacks power safety margin. Resistance is 2.4% lower. Requires engineering review.
| Feature / factor | 0603WAF8870T5E | FRC0603F8660TS | RT0603BRD07910RL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Power | 0.1 W | 0.1 W | 0.1 W | 0.1 W — Lacks recommended 1.5x safety margin (ER-RES-003).; RT0603BRD07910RL: Lacks recommended 1.5x safety margin (ER-RES-003). | |
| Resistance | 887 Ω | 866 Ω | 910 Ω | 866 Ω / 910 Ω — 2.4% lower than target, within E96 series.; RT0603BRD07910RL: 2.6% higher than target. | |
| Package | 0603 | 0603 | - | 0603 — matched | |
| Tolerance | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — matched; RT0603BRD07910RL: Tighter tolerance than target. | |
| Technology | Thick Film | Thick Film | Thin Film | Thick Film / Thin Film — matched; RT0603BRD07910RL: Different technology may affect pulse handling and noise. | |
| Tcr | ±100 ppm/°C | - | 25 ppm/°C | 25 ppm/°C — Improved TCR over target. |
Currently, no direct drop-in replacement has been verified. A suitable alternative must have a power rating of at least 0.15W, along with matching 887Ω resistance, ±1% tolerance, and 0603 package.