
Vishay
Pin-compatible 0603 resistor with matching resistance, tolerance, and power. Features higher voltage rating and AEC-Q200 qualification.
RS-03K4871FT is a 0603 thick film chip resistor from FH, offering 4.87kΩ resistance, ±1% tolerance, and a 100mW power rating. It is a common choice for general-purpose applications requiring this specific E96 resistance value.
Low if key parameters match. High if resistance value is different.
0603 is a highly standardized package, ensuring mechanical compatibility.
This is a common resistor value with a deep supply chain.
Yes, Vishay CRCW06034K87FKEA is a direct pin-to-pin replacement for RS-03K4871FT, matching package, resistance, tolerance, power, and TCR.
The best path is a pin-compatible part like Vishay's CRCW06034K87FKEA, which matches all key electrical parameters.
The main risk is substituting with a part of a different resistance value, which can alter circuit behavior. Always verify resistance.

Vishay
Pin-compatible 0603 resistor with matching resistance, tolerance, and power. Features higher voltage rating and AEC-Q200 qualification.
| Feature / factor | RS-03K4871FT | CRCW06034K87FKEA | RT0603BRD074K87L | ARG03BTC4991 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 0603 | 0603 | 0603 | 0603 | 0603 — Identical package and footprint.; RT0603BRD074K87L: Identical package and footprint.; ARG03BTC4991: Identical package and footprint.; TD03G5101BT: Identical package and footprint. |
| Resistance | 4.87 kΩ | 4.87 kΩ | 4.87 kΩ | 4.99 kΩ | 4.87 kΩ / 4.99 kΩ / 5.1 kΩ — Identical nominal resistance.; RT0603BRD074K87L: Identical nominal resistance.; ARG03BTC4991: Resistance differs by +2.5%. Requires circuit validation.; TD03G5101BT: Resistance differs by +4.7%. Requires circuit validation. |
| Tolerance | ±1% | ±1% | ±0.1% | ±0.1% | ±1% / ±0.1% — Identical tolerance.; RT0603BRD074K87L: Tighter tolerance provides higher precision.; ARG03BTC4991: Tighter tolerance.; TD03G5101BT: Tighter tolerance. |
| Power | 0.1 W | 0.1 W | 0.1 W | - | 0.1 W — Identical power rating.; RT0603BRD074K87L: Matches target power rating. Catalog data showing 1W appears incorrect. |
| Tcr | ±100ppm/℃ | ±100 ppm/K | 25 ppm/°C | ±25ppm/℃ | ±100 ppm/K / 25 ppm/°C / ±25ppm/℃ — Identical temperature coefficient.; RT0603BRD074K87L: Superior TCR improves stability over temperature.; ARG03BTC4991: Superior TCR.; TD03G5101BT: Superior TCR. |
| Voltage | 50 V | 75 V | - | - | 75 V — Higher voltage rating provides more margin. |
Vishay's CRCW06034K87FKEA is an excellent alternative, matching all key specifications and offering AEC-Q200 qualification.