
Viking Tech
Viking Tech AR03BTCX1500 is a pin-compatible alternative with matching precision, tolerance, and TCR.
PTFR0603B150RP9 is a 150Ω 0.1% precision thin film resistor. We've found a pin-compatible alternative with matching specs and several lower-cost, lower-precision options for less demanding applications.
Using a 1% tolerance, 100ppm TCR part can cause circuit malfunction in precision applications.
All reviewed candidates use the same 0603 package, ensuring physical compatibility.
Yes, AR03BTCX1500 from Viking Tech is a direct, pin-compatible replacement with matching thin film technology, 0.1% tolerance, and ±25ppm/°C TCR.
For a direct drop-in, use Viking Tech AR03BTCX1500 which matches all precision specifications. For cost-sensitive, non-critical applications, consider a 1% thick film part.
The primary risk is substituting a general-purpose thick film resistor in an application that requires the high precision and stability of the original thin film part.

Viking Tech
Viking Tech AR03BTCX1500 is a pin-compatible alternative with matching precision, tolerance, and TCR.
| Feature / factor | PTFR0603B150RP9 | AR03BTCX1500 | RS-03K1500FT | AC0603FR-07150RL | Compatibility / risk |
|---|---|---|---|---|---|
| Technology | Thin Film | Thin Film | Thick Film | Thick Film | Thin Film / Thick Film — Matches target's precision technology.; RS-03K1500FT: Lower stability than target's Thin Film.; AC0603FR-07150RL: Lower stability than target's Thin Film. |
| Tolerance | 0.1% | 0.1% | 1.0% | 1.0% | 0.1% / 1.0% — Matches target's high precision.; RS-03K1500FT: 10x wider tolerance than target.; AC0603FR-07150RL: 10x wider tolerance than target. |
| Tcr | ±25ppm/℃ | ±25ppm/°C | ±100ppm/℃ | 100 ppm/°C | ±25ppm/°C / ±100ppm/℃ / 100 ppm/°C — Matches target's high stability.; RS-03K1500FT: 4x higher temperature drift.; AC0603FR-07150RL: 4x higher temperature drift. |
| Resistance | 150Ω | 150Ω | - | - | 150Ω — Identical resistance value. |
| Package | 0603 | 0603 | 0603 | - | 0603 — Identical package for drop-in.; RS-03K1500FT: Identical package. |
| Application | Not specified | - | - | AEC-Q200 | AEC-Q200 — Automotive qualified, may be over-spec if not needed. |
Viking Tech's AR03BTCX1500 is the best alternative, offering identical key specifications including resistance, tolerance, TCR, power rating, and thin film technology in the same 0603 package.