
Yageo
A strong alternative with identical key parameters but a lower maximum operating temperature.
Finding a substitute for the TC0525B4702T5G, a 47kΩ 0.1% 25ppm thin-film resistor, requires careful comparison of precision parameters. While several alternatives exist, they often involve trade-offs in operating temperature or electrical specifications that need engineering review.
Candidates may have lower temperature ratings, wider tolerance, or different resistance values.
All presented alternatives use the same 0805 package, ensuring physical compatibility.
No direct, drop-in replacement has been identified without caveats. The closest match, RT0805BRD0747KL, requires verification of the application's maximum operating temperature.
The best alternative is Yageo's RT0805BRD0747KL, which matches all key electrical specs but has a lower max temperature (125°C vs 155°C). If the application runs cooler than 125°C, it's a strong candidate. Otherwise, a parametric alternative must be considered.
The primary risks in replacing TC0525B4702T5G are mismatched operating temperature or a downgrade in precision (tolerance and TCR), which can affect circuit performance.

Yageo
A strong alternative with identical key parameters but a lower maximum operating temperature.
| Feature / factor | TC0525B4702T5G | RT0805BRD0747KL | AC0805FR-0747KL | RT0805BRD0751KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0805 | 0805 | 0805 | 0805 | 0805 — Package size matches.; AC0805FR-0747KL: Package size matches.; RT0805BRD0751KL: Package size matches. |
| Resistance | 47 kΩ | 47 kΩ | 47 kΩ | 51 kΩ | 47 kΩ / 51 kΩ — Resistance value matches.; AC0805FR-0747KL: Resistance value matches.; RT0805BRD0751KL: Resistance is ~8.5% higher. |
| Tolerance | ±0.1% | ±0.1% | ±1% | ±0.1% | ±0.1% / ±1% — Precision tolerance matches.; AC0805FR-0747KL: Tolerance is 10x wider than target.; RT0805BRD0751KL: Precision tolerance matches. |
| Tcr | 25 ppm/°C | 25 ppm/°C | ±100 ppm/°C | 25 ppm/°C | 25 ppm/°C / ±100 ppm/°C — Temperature coefficient matches.; AC0805FR-0747KL: TCR is 4x worse than target.; RT0805BRD0751KL: Temperature coefficient matches. |
| Temperature | -55°C to +155°C | -55°C to +125°C | - | - | -55°C to +125°C — Candidate has a lower max operating temperature. |
| Technology | Thin Film | - | Thick Film | - | Thick Film — Different technology may affect noise/stability. |
The best alternative is RT0805BRD0747KL by Yageo, as it matches resistance, tolerance, and TCR. However, you must verify that its lower maximum operating temperature of 125°C is acceptable for your design.