
Viking Tech
Upgrade path from the same manufacturer with tighter ±0.1% tolerance; TCR verification is required.
Finding a substitute for the Viking Tech ARG05FTC2004, a 2MΩ ±1% 0805 precision thin-film resistor, requires careful matching of its ±25ppm/°C temperature coefficient. Alternatives exist but may differ in precision or technology.
Many alternatives have weaker TCR or wider tolerance, affecting precision.
The 0805 package is a widely used industry standard.
2MΩ 0805 resistors are common, but precision versions require more careful sourcing.
No direct drop-in replacement is confirmed without datasheet verification. The closest candidates require checking the Temperature Coefficient (TCR) to match the target's ±25ppm/°C precision.
Upgrade to a tighter tolerance part like Viking's AR05BTCW2004 after verifying its TCR is ≤ ±25ppm/°C.
The primary risk is performance degradation from using a substitute with a worse Temperature Coefficient (TCR) or wider tolerance, impacting circuit accuracy.

Viking Tech
Upgrade path from the same manufacturer with tighter ±0.1% tolerance; TCR verification is required.
| Feature / factor | ARG05FTC2004 | AR05BTCW2004 | FRC0805F2004TS | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 — Standard 0805 package.; FRC0805F2004TS: Standard 0805 package. | |
| Resistance | 2MΩ | 2MΩ | 2MΩ | 2MΩ — matched; FRC0805F2004TS: matched | |
| Tolerance | ±1% | ±0.1% | ±1% | ±0.1% / ±1% — Tighter tolerance is a performance upgrade.; FRC0805F2004TS: matched | |
| Technology | Thin Film | Thin Film | Thick Film | Thin Film / Thick Film — matched; FRC0805F2004TS: Different technology may affect stability and noise. | |
| Tcr | ±25ppm/°C | Not specified | ±100 ppm/°C | Not specified / ±100 ppm/°C — TCR is a key parameter for precision and must be verified.; FRC0805F2004TS: Candidate TCR is 4x weaker, impacting precision. |
The Viking Tech AR05BTCW2004 is a potential upgrade with a tighter ±0.1% tolerance. However, its Temperature Coefficient (TCR) must be verified from the datasheet to ensure it meets the original's ±25ppm/°C requirement.