
Panasonic
AEC-Q200 qualified, pin-compatible upgrade with tighter tolerance (±0.1%) and better TCR.
AC0603JR-071KL is a 1kΩ, 5%, 0.1W, 0603 AEC-Q200 qualified thick film resistor from Yageo. Finding a replacement requires careful attention to the automotive qualification.
Substituting a non-AEC-Q200 part into an automotive design is a major compliance and reliability risk.
Most candidates match or exceed electrical specifications.
All candidates are in the same 0603 package.
For a direct, drop-in replacement, ERA3AEB102V is the best choice as it is pin-compatible, AEC-Q200 qualified, and offers superior electrical characteristics.
Upgrade to an AEC-Q200 qualified thin film resistor like Panasonic's ERA3AEB102V for improved precision and stability.
Using a non-AEC-Q200 qualified resistor in an automotive or high-reliability application where it is required.

Panasonic
AEC-Q200 qualified, pin-compatible upgrade with tighter tolerance (±0.1%) and better TCR.
| Feature / factor | AC0603JR-071KL | ERA3AEB102V | WR06X1001FTL | RT0603BRE071KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 (1608 Metric) | 0603 (1608 metric) | 0603 | 0603 (1608 Metric) / 0603 (1608 metric) — Package size matches.; WR06X1001FTL: Package size matches.; RT0603BRE071KL: Package size matches.; RT0603FRD071KL: Package size matches. |
| Application | AEC-Q200 | AEC-Q200 | General Purpose | General Purpose | AEC-Q200 / General Purpose — AEC-Q200 qualification matches.; WR06X1001FTL: Candidate is not AEC-Q200 qualified.; RT0603BRE071KL: Candidate is not AEC-Q200 qualified.; RT0603FRD071KL: Candidate is not AEC-Q200 qualified. |
| Tolerance | 5.0 % | 0.1 % | 1.0 % | 0.1 % | 0.1 % / 1.0 % — Much tighter tolerance is a significant upgrade.; WR06X1001FTL: Tighter tolerance is an upgrade.; RT0603BRE071KL: Much tighter tolerance is a significant upgrade.; RT0603FRD071KL: Tighter tolerance is an upgrade. |
| Tcr | ±200 ppm/°C | ±25 ppm/°C | ±100 ppm/°C | 50 ppm/°C | ±25 ppm/°C / ±100 ppm/°C / 50 ppm/°C — Significantly improved TCR.; WR06X1001FTL: Improved TCR.; RT0603BRE071KL: Significantly improved TCR.; RT0603FRD071KL: Significantly improved TCR. |
| Technology | Thick Film | Thin Film | - | - | Thin Film — Thin film offers better stability/noise.; RT0603FRD071KL: Thin film offers better stability/noise. |
Panasonic's ERA3AEB102V is an excellent upgrade, offering AEC-Q200 qualification with significantly better tolerance (±0.1%) and TCR (±25 ppm/°C) in the same 0603 package.