
Yageo
A potential pin-compatible replacement with matching package, resistance, tolerance, and TCR from a different manufacturer.
AR02BTC5101 is a 0402 precision thin film resistor with 5.1kΩ resistance and ±0.1% tolerance. When seeking alternatives, it's critical to match the tight tolerance and low temperature coefficient (TCR) for precision applications.
High risk if substituting with a part that does not match precision tolerance and TCR.
The 0402 package is standardized, making physical replacement straightforward.
Direct replacement for AR02BTC5101 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The best replacement path is to find another thin film resistor with identical or better specifications, such as Yageo's RT0402BRD075K1L.
The main risk is substituting with a lower-precision thick film resistor, which can degrade circuit performance due to wider tolerance and higher temperature drift.

Yageo
A potential pin-compatible replacement with matching package, resistance, tolerance, and TCR from a different manufacturer.
| Feature / factor | AR02BTC5101 | RT0402BRD075K1L | RT0402DRE075K1L | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0402 | 0402 — Matches standard 0402 footprint.; RT0402DRE075K1L: Matches standard 0402 footprint. | |
| Resistance | 5.1kΩ | 5.1kΩ | - | 5.1kΩ — matched | |
| Tolerance | ±0.1% | ±0.1% | ±0.5% | ±0.1% / ±0.5% — Matches precision tolerance.; RT0402DRE075K1L: Wider tolerance. | |
| Tcr | ±25ppm/°C | ±25ppm/°C | 50ppm/°C | ±25ppm/°C / 50ppm/°C — Matches low temperature coefficient.; RT0402DRE075K1L: Higher temperature drift. | |
| Technology | Thin Film (implied) | Thin Film | Thin Film | Thin Film — Matches precision thin film technology.; RT0402DRE075K1L: Matches precision thin film technology. |
Verified drop-in options for AR02BTC5101 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.