
FOJAN
A strong pin-compatible alternative with identical key electrical parameters and 0603 package.
Finding a substitute for the SCR0603F31K6, a 31.6kΩ 1% 0.1W 0603 thick film resistor, involves matching key electrical parameters and package size. Several pin-compatible and parametric alternatives are available.
Low for direct matches; medium for parametric alternatives which require validation of resistance change.
All reviewed candidates use the same 0603 package, ensuring form-fit compatibility.
31.6kΩ is a standard E96 value, available from multiple vendors, mitigating sourcing risk.
Direct replacement for SCR0603F31K6 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Direct cross to another thick film resistor like FRC0603F3162TS for a like-for-like swap.
The main risk is using a part with a different resistance value or technology (thin film) without verifying circuit compatibility.

FOJAN
A strong pin-compatible alternative with identical key electrical parameters and 0603 package.
| Feature / factor | SCR0603F31K6 | FRC0603F3162TS | RS-03K3162FT | RT0603BRD0731K6L | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package ensures form and fit.; RS-03K3162FT: Identical package ensures form and fit.; RT0603BRD0731K6L: Identical package ensures form and fit.; RC0603FR-0728K7L: Package matches. |
| Resistance | 31.6 kΩ | 31.6 kΩ | 31.6 kΩ | 31.6 kΩ | 31.6 kΩ / 28.7 kΩ — Resistance value matches.; RS-03K3162FT: Resistance value matches.; RT0603BRD0731K6L: Resistance value matches.; RC0603FR-0728K7L: Resistance is ~9.2% lower. Verify circuit tolerance. |
| Tolerance | ±1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Tolerance matches.; RS-03K3162FT: Tolerance matches.; RT0603BRD0731K6L: Tighter tolerance offers higher precision.; RC0603FR-0728K7L: Tolerance matches. |
| Power | 0.1 W | 0.1 W | 0.1 W | - | 0.1 W — Power rating matches.; RS-03K3162FT: Power rating matches. |
| Tcr | ±100 ppm/°C | ±100 ppm/°C | - | 25 ppm/°C | ±100 ppm/°C / 25 ppm/°C — Temperature coefficient matches.; RT0603BRD0731K6L: Lower TCR provides better stability over temperature. |
| Technology | Thick Film | Thick Film | - | Thin Film | Thick Film / Thin Film — Technology matches.; RT0603BRD0731K6L: Different technology may affect noise or pulse handling. |
Verified drop-in options for SCR0603F31K6 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.