Is there a pin-compatible replacement for 1210W2F4990T5E?

Yes, several resistors share the same 1210 package and 2-pin layout. However, no direct drop-in with 499Ω resistance was found in this batch. Alternatives with 510Ω or 470Ω resistance are available but require review.

What risks should I check before replacing 1210W2F4990T5E?

The main risk is the resistance value. The closest options are 510Ω or 470Ω, not 499Ω. You must confirm your circuit can tolerate this change. Also, ensure the power rating (0.5W) and tolerance (±1%) are met.

1210W2F4990T5E Alternatives, Datasheet & Cross Reference | UNI-ROYAL

Finding a substitute for the UNI-ROYAL 1210W2F4990T5E 499Ω resistor involves checking key parameters. Alternatives exist with slight resistance variations that may be suitable after design review.

AI replacement insight

Electrical riskmedium

Resistance value differs, requiring circuit analysis.

Package risklow

Alternatives in the same 1210 package are available.

Sourcing risklow

510Ω and 470Ω are common resistor values.

Can it be replaced directly?

No direct, drop-in replacement with the exact 499Ω resistance was identified. The closest options have slightly different resistance values.

Best replacement path

Use a 510Ω, 1% tolerance, 0.5W resistor in a 1210 package, after verifying circuit impact.

Main risk

The primary risk is the deviation in resistance value, which could affect circuit performance.

Recommended alternatives

From the same manufacturer, this 1210 resistor has a slightly higher resistance of 510Ω.

View details

Alternative comparison matrix

Feature / factor	1210W2F4990T5E	1210W2F5100T5E	FRC1210F5100TS	FRC1210F4700TS	Compatibility / risk
Package	1210	1210	1210	1210	1210 — Form-factor match.; FRC1210F5100TS: Form-factor match.; FRC1210F4700TS: Form-factor match.
Resistance	499 Ω	510 Ω	510 Ω	470 Ω	510 Ω / 470 Ω — 2.2% higher resistance. From same manufacturer series.; FRC1210F5100TS: 2.2% higher resistance. Ranges do not overlap.; FRC1210F4700TS: 5.8% lower resistance.
Power	0.5 W	0.5 W	0.5 W	0.5 W	0.5 W — Matches target, no increased safety margin.; FRC1210F5100TS: Matches target, no increased safety margin.; FRC1210F4700TS: Matches target, no increased safety margin.
Tolerance	±1%	±1%	±1%	±1%	±1% — Matches precision requirement.; FRC1210F5100TS: Matches precision requirement.; FRC1210F4700TS: Matches precision requirement.

Application & sourcing insights

Questions & answers

The closest alternatives are 510Ω 1% 0.5W resistors in a 1210 package, such as FRC1210F5100TS or 1210W2F5100T5E. These require verifying if a +2.2% resistance change is acceptable.