What risks should I check before replacing ARG05BTC4990?

Verify that the substitute's resistance, tolerance (±0.1%), and TCR (±25ppm/°C) meet your design's requirements. Also confirm the power rating (0.125W) and 0805 footprint.

ARG05BTC4990 Alternatives, Datasheet & Cross Reference | Viking Tech

Searching for a replacement for the Viking Tech ARG05BTC4990 499Ω 0.1% resistor? This guide reviews top alternatives, including pin-compatible options and parametric variants.

AI replacement insight

Electrical riskmedium

Some alternatives have different resistance or weaker tolerance/TCR.

Package risklow

All reviewed candidates share the same 0805 package.

Sourcing risklow

Multiple vendors offer similar parts, providing sourcing flexibility.

Can it be replaced directly?

Yes, the Yageo RT0805BRD07499RL is a potential pin-to-pin replacement for the ARG05BTC4990, sharing the same 499Ω resistance, 0.1% tolerance, and 0805 package.

Best replacement path

The Yageo RT0805BRD07499RL is the strongest candidate, matching all key electrical parameters and package. It is recommended as the first part to evaluate.

Main risk

The primary risk when substituting is using a part with different resistance, tolerance, or temperature coefficient (TCR), which can affect circuit precision.

Recommended alternatives

Strongest candidate, matching all key parameters including resistance, tolerance, power, TCR, and 0805 package.

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Alternative comparison matrix

Feature / factor	ARG05BTC4990	RT0805BRD07499RL	ARG05DTC5000	Compatibility / risk
Resistance	499 Ohm	499 Ohm	500 Ohm	499 Ohm / 500 Ohm — Exact match.; ARG05DTC5000: Very close value (+0.2%), likely acceptable.
Tolerance	0.1%	0.1%	0.5%	0.1% / 0.5% — Exact match.; ARG05DTC5000: Weaker tolerance, may not be suitable for all precision applications.
Power	0.125W	0.125W	0.125W	0.125W — Matches target's 1/8W rating. Catalog data showing 1W appears to be an error.; ARG05DTC5000: Matches target rating.
Tcr	±25ppm/°C	25 ppm/°C	-	25 ppm/°C — Matches precision TCR.
Package	0805	0805	0805	0805 — Identical package.; ARG05DTC5000: Identical package.

Application & sourcing insights

Questions & answers

Verified drop-in options for ARG05BTC4990 are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.