Is there a pin-compatible replacement for AECR1206F3K00K9?

Yes, Yageo AC1206FR-073KL is a pin-compatible replacement. It shares the same 1206 package, 2-pin layout, and key electrical characteristics, including the critical AEC-Q200 qualification.

What risks should I check before replacing AECR1206F3K00K9?

The primary risk is using a non-AEC-Q200 qualified resistor in an application that requires it, which can lead to premature failure. Also, verify that the power rating of 0.25W provides sufficient margin in your design.

AECR1206F3K00K9 Alternatives, Datasheet & Cross Reference | C&B RESI

AECR1206F3K00K9 is a 3kΩ, 1% tolerance, AEC-Q200 qualified thick film resistor in a 1206 package. Finding a replacement requires matching these parameters, especially the automotive qualification for high-reliability applications.

AI replacement insight

Electrical riskhigh

Risk is high if a non-AEC-Q200 part is used in an automotive application. Low if an equivalent qualified part is used.

Package risklow

The 1206 package is a standard size, ensuring physical compatibility.

Can it be replaced directly?

Yes, Yageo AC1206FR-073KL is a strong candidate for a direct replacement, as it is also AEC-Q200 qualified and matches all key electrical and physical specifications.

Best replacement path

The best replacement path is to use another AEC-Q200 qualified resistor like Yageo's AC1206FR-073KL, which matches all key parameters.

Main risk

The main risk is substituting with a non-AEC-Q200 qualified part in an automotive or high-reliability application, which could compromise system safety and longevity.

Recommended alternatives

Yageo's AC1206FR-073KL is an AEC-Q200 qualified 3kΩ 1% resistor, a strong pin-compatible alternative.

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Alternative comparison matrix

Feature / factor	AECR1206F3K00K9	AC1206FR-073KL	RT1206BRD073KL	RS-06K3001FT	Compatibility / risk
Package	1206	1206	-	1206	1206 — Form and fit match.; RS-06K3001FT: Form and fit match.
Application	AEC-Q200	AEC-Q200	Not specified	Not specified	AEC-Q200 / Not specified — Both parts are automotive qualified.; RT1206BRD073KL: Lacks automotive qualification.; RS-06K3001FT: Lacks automotive qualification.
Resistance	3000.0	3000.0	-	3000.0	3000.0 — matched; RS-06K3001FT: matched
Tolerance	1.0	1.0	0.1	1.0	1.0 / 0.1 — matched; RT1206BRD073KL: Tighter tolerance is an upgrade.; RS-06K3001FT: matched
Power	0.25	0.25	-	-	0.25 — Matches target, but does not provide extra design margin.
Tcr	±100ppm/℃	±100 ppm/°C	25 ppm/°C	-	±100 ppm/°C / 25 ppm/°C — matched; RT1206BRD073KL: Better temperature stability.
Technology	Thick Film	-	Thin Film	-	Thin Film — Candidate is higher precision Thin Film.

Application & sourcing insights

Questions & answers

The best alternative to AECR1206F3K00K9 is Yageo's AC1206FR-073KL. It matches the 3kΩ resistance, 1% tolerance, 1206 package, and is also AEC-Q200 qualified for automotive use.