
Viking Tech
A 20kΩ 0603 thin film resistor with matching TCR but wider tolerance (±0.5% vs ±0.1%).
Finding a substitute for the TD03G2002BT, a high-precision 20kΩ 0603 resistor, requires careful attention to its ±0.1% tolerance and ±25ppm/℃ TCR. While form-fit alternatives exist, they often involve parametric downgrades.
Wider tolerance and higher TCR can impact the performance of precision analog circuits, filters, and voltage dividers.
All candidates share the same 0603 package, ensuring form-fit compatibility on the PCB.
Multiple manufacturers offer parts with relaxed parameters, improving availability.
No direct, drop-in replacement with identical precision (±0.1% tolerance, ±25ppm/℃ TCR) was found. All available candidates are parametric downgrades that require engineering validation.
The closest alternatives are Viking Tech's ARG03DTC2002 (±0.5%) and ARG03FTC2002 (±1%), which match the thin film technology and TCR but have wider tolerance. They require engineering review.
The primary risk is reduced circuit accuracy and stability due to wider resistance tolerance and, in some cases, higher TCR and different resistor technology (thick film).

Viking Tech
A 20kΩ 0603 thin film resistor with matching TCR but wider tolerance (±0.5% vs ±0.1%).
| Feature / factor | TD03G2002BT | ARG03DTC2002 | ARG03FTC2002 | RS-03K203JT | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Form-fit is identical.; ARG03FTC2002: Form-fit is identical.; RS-03K203JT: Form-fit is identical.; CRCW060320K0FKEA: Form-fit is identical. |
| Resistance | 20kΩ | 20kΩ | 20kΩ | - | 20kΩ — Resistance value matches.; ARG03FTC2002: Resistance value matches. |
| Tolerance | ±0.1% | ±0.5% | ±1% | ±5% | ±0.5% / ±1% / ±5% — Tolerance is 5x wider than target's ±0.1%.; ARG03FTC2002: Tolerance is 10x wider than target's ±0.1%.; RS-03K203JT: Tolerance is 50x wider than target's ±0.1%.; CRCW060320K0FKEA: Tolerance is 10x wider than target's ±0.1%. |
| Tcr | ±25ppm/℃ | ±25ppm/°C | ±25ppm/°C | ±100ppm/℃ | ±25ppm/°C / ±100ppm/℃ / ±100 ppm/K — Temperature coefficient matches.; ARG03FTC2002: Temperature coefficient matches.; RS-03K203JT: TCR is 4x worse than target's ±25ppm/℃.; CRCW060320K0FKEA: TCR is 4x worse than target's ±25ppm/℃. |
| Technology | Thin Film | Thin Film | Thin Film | Thick Film | Thin Film / Thick Film — Resistor technology matches.; ARG03FTC2002: Resistor technology matches.; RS-03K203JT: Different technology may affect noise and stability.; CRCW060320K0FKEA: Different technology may affect noise and stability. |
The best alternatives are Viking Tech's ARG03DTC2002 and ARG03FTC2002. They use the same thin film technology and have the same ±25ppm/℃ TCR, but their tolerance is wider at ±0.5% and ±1% respectively. They are the closest functional match but require review.