
FOJAN
A strong pin-compatible alternative from FOJAN with matching resistance, tolerance, power, and 0603 package.
RS-03K1912FT is a general-purpose 19.1kΩ, 1% tolerance, 0.1W thick film resistor in a standard 0603 package. Several pin-compatible and functional alternatives are available from various manufacturers.
Low for pin-compatible parts. Medium for parts with different resistance or technology.
Low, as all candidates use the common 0603 package. Verify land patterns.
Low, as 19.1kΩ 0603 resistors are a common commodity part from multiple vendors.
Yes, Yageo RC0603FR-0719K1L is a direct replacement for RS-03K1912FT, matching all key specifications.
Use a pin-compatible thick film resistor like Yageo RC0603FR-0719K1L for a direct, low-risk replacement.
The main risk involves selecting a part with a different resistance value or technology (thin film vs. thick film) without engineering approval.

FOJAN
A strong pin-compatible alternative from FOJAN with matching resistance, tolerance, power, and 0603 package.
| Feature / factor | RS-03K1912FT | FRC0603F1912TS | RC0603FR-0719K1L | RT0603BRD0719K1L | Compatibility / risk |
|---|---|---|---|---|---|
| Resistance | 19.1 kΩ | 19.1 kΩ | 19.1 kΩ | - | 19.1 kΩ — Matches target value.; RC0603FR-0719K1L: Matches target value. |
| Tolerance | ±1% | ±1% | ±1% | ±0.1% | ±1% / ±0.1% — Matches target tolerance.; RC0603FR-0719K1L: Matches target tolerance.; RT0603BRD0719K1L: Tighter tolerance than target's ±1%. |
| Power | 0.1W | 0.1W | 0.1W | - | 0.1W — Matches target power rating.; RC0603FR-0719K1L: Matches target power rating. |
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Matches target package.; RC0603FR-0719K1L: Matches target package.; RT0603BRD0719K1L: Matches target package. |
| Tcr | ±100 ppm/℃ | - | ±100 ppm/°C | 25 ppm/°C | ±100 ppm/°C / 25 ppm/°C — Matches target TCR.; RT0603BRD0719K1L: Better TCR than target's ±100 ppm/℃. |
| Technology | Thick Film | - | - | Thin Film | Thin Film — Candidate is Thin Film, target is Thick Film. Check pulse handling. |
RC0603FR-0719K1L from Yageo is an excellent pin-compatible alternative, matching all key electrical and physical specifications.