Is there a pin-compatible replacement for FRC1206J510 TS?

No pin-compatible replacements were confirmed. While several 1206 package candidates exist, they do not meet the required power rating safety factor (≥1.5x target) and are not recommended without further review.

What risks should I check before replacing FRC1206J510 TS?

The main risks are package mismatch and power handling. Alternatives may be in larger packages (e.g., 1210, 2512) requiring a PCB layout change. Also, ensure the substitute's power rating provides adequate safety margin.

FRC1206J510 TS Alternatives, Datasheet & Cross Reference | FOJAN

Reviewing alternatives for the FRC1206J510 TS, a 51 Ohm, 5%, 0.25W resistor in a 1206 package. Key considerations for substitutes are matching the package size and ensuring a higher power rating.

AI replacement insight

Package riskhigh

Substitutes require larger footprints (1210 or 2512), not a drop-in fit for 1206.

Electrical risklow

Kept candidates have matching or better electrical specs (resistance, tolerance, power).

Can it be replaced directly?

No direct drop-in replacement was identified due to a strict power rating safety rule (candidate power ≥ 1.5x target power).

Best replacement path

Functional alternative with board redesign.

Main risk

Package incompatibility. All compliant candidates are in larger packages, requiring a PCB layout modification.

Recommended alternatives

Functional alternative with same resistance but in a larger 2512 package and with a higher 1W power rating.

View details

Alternative comparison matrix

Feature / factor	FRC1206J510 TS	25121WJ0510T4E	1210W2F510JT5E	Compatibility / risk
Package	1206	2512	-	1210 — Not a drop-in replacement.
Power	0.25 W	1.0 W	-	0.5 W — Higher power rating.
Resistance	51.0 ohm	51.0 ohm	-	51.0 ohm — matched
Tolerance	5.0 %	5.0 %	-	1.0 % — Tighter tolerance is an upgrade.
Tcr	±100 ppm/°C	-	missing	missing — TCR not specified in catalog data.

Application & sourcing insights

Questions & answers

No direct drop-in replacement was found that meets all engineering rules. Functional alternatives like UNI-ROYAL's 1210W2F510JT5E offer higher power but require a larger PCB footprint.