
UNI-ROYAL
Pin-compatible upgrade with higher 2W power and 300V voltage ratings in a 2512 package.
The FOJAN FRC2512J104 TS is a general-purpose 100 kΩ, 5% tolerance, 1W thick film resistor in a 2512 package. Finding a suitable replacement involves matching these key parameters while considering power and voltage ratings.
Low, as candidates offer higher power/voltage ratings.
Low, as candidates are in the same 2512 package.
Low, as candidates are from major manufacturers like Yageo.
Yes, several parts like Yageo RC2512JK-7W100KL offer the same resistance, tolerance, and package with a higher power rating, making them robust substitutes.
Upgrade to a 2W rated part like Yageo's RC2512 series for improved power handling and reliability.
The primary risk is ensuring the substitute's temperature coefficient (TCR) and pulse withstanding capabilities are suitable for the application.

UNI-ROYAL
Pin-compatible upgrade with higher 2W power and 300V voltage ratings in a 2512 package.
| Feature / factor | FRC2512J104 TS | HP122WJ0104T4E | RC2512FK-7W100KL | RC2512JK-7W100KL | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 2512 | 2512 (6432 metric) | 2512 (6432 Metric) | 2512 (6432 Metric) | 2512 (6432 metric) / 2512 (6432 Metric) — Package size matches.; RC2512FK-7W100KL: Package size matches.; RC2512JK-7W100KL: Package size matches. |
| Power | 1.0 W | 2.0 W | 2.0 W | 2.0 W | 2.0 W — Higher power rating provides more design margin.; RC2512FK-7W100KL: Higher power rating provides more design margin.; RC2512JK-7W100KL: Higher power rating provides more design margin. |
| Voltage | 200 V | 300 V | - | - | 300 V — Higher max working voltage. |
| Resistance | 100 kΩ | 100 kΩ | 100 kΩ | 100 kΩ | 100 kΩ — Resistance value matches.; RC2512FK-7W100KL: Resistance value matches.; RC2512JK-7W100KL: Resistance value matches. |
| Tolerance | ±5% | ±5% | ±1% | ±5% | ±5% / ±1% — Tolerance matches.; RC2512FK-7W100KL: Tighter tolerance offers higher precision.; RC2512JK-7W100KL: Tolerance matches. |
| Tcr | Not specified | - | ±200 ppm/°C | ±200 ppm/°C | ±200 ppm/°C — Target TCR not specified; must be verified for application.; RC2512JK-7W100KL: Target TCR not specified; must be verified for application. |
The Yageo RC2512FK-7W100KL is an excellent upgrade, offering a higher 2W power rating and tighter ±1% tolerance in the same 2512 package.