
UNI-ROYAL
Similar package and power, but higher resistance and unknown TCR. Requires datasheet review.
ARG03FTC1004 is a 1MΩ, 1%, 0.1W precision thin film resistor in an 0603 package with a tight ±25ppm/°C TCR. Finding a direct replacement requires matching these key precision parameters.
TCR and resistance mismatches are common and critical for this precision part.
The 0603 package is highly standardized.
Precision resistors can have tighter availability than general-purpose ones.
No direct, verified drop-in replacement has been identified. All candidates require engineering review due to parametric differences, especially in TCR.
Search for 0603 thin film resistors with 1MΩ resistance, ≥0.1W power, and a TCR of ±25ppm/°C or better.
The primary risk is performance degradation from using a substitute with a worse Temperature Coefficient (TCR), affecting circuit precision.

UNI-ROYAL
Similar package and power, but higher resistance and unknown TCR. Requires datasheet review.
| Feature / factor | ARG03FTC1004 | 0603WAF1104T5E | RC0603FR-07910KL | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 (1608 metric) | 0603 / 0603 (1608 metric) — Package size matches.; RC0603FR-07910KL: Package size matches. | |
| Resistance | 1MΩ | 1.1MΩ | 910kΩ | 1.1MΩ / 910kΩ — Resistance is 10% higher.; RC0603FR-07910KL: Resistance is ~9% lower. | |
| Tcr | ±25ppm/°C | Not specified | ±100 ppm/°C | Not specified / ±100 ppm/°C — TCR is a critical missing parameter.; RC0603FR-07910KL: TCR is 4x worse, impacting precision. | |
| Power | 1/10W | 1/10W | 1/10W | 1/10W — Power rating is identical.; RC0603FR-07910KL: Power rating is identical, may not meet derating rules. | |
| Technology | Thin Film | Thick Film | Thick Film | Thick Film — Thick film is less stable than target's thin film.; RC0603FR-07910KL: Thick film is less stable than target's thin film. |
A true alternative must match the 1MΩ resistance, ±1% tolerance, 0603 package, and especially the ±25ppm/°C TCR. Candidates with worse TCR exist but require careful circuit analysis.