Is there a pin-compatible replacement for ARG03BTC4991?

Yes, several 0603 package resistors are pin-compatible, such as AR03BTCX5101 and TD03G5101BT. While they fit the same footprint, their resistance values differ, so electrical compatibility is not guaranteed and must be verified.

What risks should I check before replacing ARG03BTC4991?

The main risk is the resistance mismatch. The target is a 4.99kΩ precision resistor, and substitutes have values like 5.1kΩ or 4.7kΩ. This can alter the performance of precision circuits. Also, check the Temperature Coefficient (TCR) to ensure stability is not compromised.

ARG03BTC4991 Alternatives, Datasheet & Cross Reference | Viking Tech

Find alternatives for the Viking Tech ARG03BTC4991, a 4.99kΩ precision resistor. While no direct drop-in replacements exist, several parametric alternatives with similar performance in the same 0603 package are available for evaluation.

AI replacement insight

Electrical riskmedium

Resistance value differs, impacting circuit precision.

Package risklow

All candidates share the same 0603 package.

Sourcing risklow

Alternatives are available from multiple manufacturers.

Can it be replaced directly?

No, there are no direct, 1:1 replacements for the 4.99kΩ precision value among the reviewed candidates. All alternatives have different resistance values.

Best replacement path

Use a parametric alternative with a slightly different resistance value, such as AR03BTCX5101 (5.1kΩ), and verify circuit tolerance.

Main risk

The primary risk is the change in resistance value, which can affect the precision and function of the circuit, especially in sensitive analog applications.

Recommended alternatives

Same manufacturer and series with a 5.1kΩ resistance. Verify circuit tolerance before use.

View details

Alternative comparison matrix

Feature / factor	ARG03BTC4991	AR03BTCX5101	TD03G5101BT	Compatibility / risk
Resistance	4.99kΩ	5.1kΩ	5.1kΩ	5.1kΩ — +2.2% deviation from target. Requires circuit validation.; TD03G5101BT: +2.2% deviation from target. Requires circuit validation.
Package	0603	0603	0603	0603 — Identical package ensures form/fit compatibility.; TD03G5101BT: matched
Tolerance	±0.1%	±0.1%	±0.1%	±0.1% — matched; TD03G5101BT: matched
Power	100mW	100mW	100mW	100mW — matched; TD03G5101BT: matched
Tcr	±25ppm/℃	±25ppm/°C	-	±25ppm/°C — matched
Manufacturer	Viking Tech	-	FH	FH — Cross-vendor alternative.

Application & sourcing insights

Questions & answers

The best available alternative is likely AR03BTCX5101. It is from the same manufacturer and series, with a close resistance of 5.1kΩ. However, you must verify if your circuit can tolerate this +2.2% resistance difference.