
UNI-ROYAL
A general-purpose 2kΩ 0402 resistor with very wide tolerance (±5%). Only for non-critical applications.
RT0402BRD072KL is a precision 2kΩ, 0.1% tolerance, 25ppm/°C TCR thin film resistor in an 0402 package. Finding a direct drop-in replacement requires matching these tight specifications, while functional alternatives exist in different packages.
High risk if using a same-package thick film part due to worse tolerance and TCR.
High risk if selecting a functional alternate, as it requires a PCB redesign.
No direct, pin-to-pin replacement with matching precision is available. All same-package options are significant downgrades.
Functional alternate with PCB change (AR03BTCX2001) for performance, or a parametric downgrade (AC0402FR-072KL) for form factor.
The primary risk is a trade-off between maintaining electrical precision (requiring a PCB change) and maintaining the physical footprint (sacrificing precision).

UNI-ROYAL
A general-purpose 2kΩ 0402 resistor with very wide tolerance (±5%). Only for non-critical applications.
| Feature / factor | RT0402BRD072KL | 0402WGJ0202TCE | AR03BTCX2001 | AC0402FR-072KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0402 | 0402 | 0603 | 0402 | 0402 / 0603 / 0805 — Physical fit is identical.; AR03BTCX2001: Larger package, requires PCB change.; AC0402FR-072KL: Physical fit is identical.; RT0805BRE072KL: Larger package, requires PCB change. |
| Resistance | 2 kΩ | 2 kΩ | 2 kΩ | 2 kΩ | 2 kΩ — matched; AR03BTCX2001: matched; AC0402FR-072KL: matched |
| Tolerance | ±0.1% | ±5% | ±0.1% | ±1% | ±5% / ±0.1% / ±1% — Extreme downgrade, general purpose.; AR03BTCX2001: matched; AC0402FR-072KL: Significant downgrade from precision.; RT0805BRE072KL: matched |
| Technology | Thin Film | Thick Film | - | Thick Film | Thick Film — Different technology.; AC0402FR-072KL: Different technology, affects noise/stability. |
| Tcr | 25 ppm/°C | Not specified | ±25 PPM/°C | ±100 ppm/°C | Not specified / ±25 PPM/°C / ±100 ppm/°C / 50 ppm/°C — Likely >100ppm/°C.; AR03BTCX2001: matched; AC0402FR-072KL: Lower stability over temperature.; RT0805BRE072KL: Slightly higher TCR. |
| Power | 1/16 W | - | 1/10 W | - | 1/10 W / 1/8 W — Higher power rating is safe.; RT0805BRE072KL: Higher power rating is safe. |
For electrical performance, Viking Tech's AR03BTCX2001 is a near-perfect match but requires a larger 0603 footprint. If the 0402 package is mandatory, no direct equivalent has been identified, and any substitute like Yageo's AC0402FR-072KL involves a significant precision downgrade.