Is there a pin-compatible replacement for RL1206FR-070R4L?

Yes, several 1206 package resistors are pin-compatible in form factor. However, no exact 0.4Ω 1% AEC-Q200 match was found. The closest is RL1206FR-070R39L, which requires review due to the resistance difference.

What risks should I check before replacing RL1206FR-070R4L?

Key risks include: 1) Resistance deviation from 0.4Ω, affecting circuit accuracy. 2) Lack of AEC-Q200 qualification in non-Yageo parts, making them unsuitable for automotive use. 3) Potential differences in Temperature Coefficient of Resistance (TCR).

RL1206FR-070R4L Alternatives, Datasheet & Cross Reference | Yageo

Yageo's RL1206FR-070R4L is a 0.4Ω 1% 0.25W AEC-Q200 current sense resistor in a 1206 package. While no exact drop-in replacement is available, the closest alternative is another part from the same Yageo series with a slightly different resistance.

AI replacement insight

Electrical risklow

Minor resistance difference requires validation. Power and tolerance match on best options.

Package risklow

All candidates share the same 1206 package, ensuring form-fit compatibility.

Sourcing riskhigh

Using non-AEC-Q200 parts in qualified designs introduces compliance and reliability risks.

Can it be replaced directly?

No exact drop-in replacement with 0.4Ω resistance and AEC-Q200 qualification was found. The closest functional match is RL1206FR-070R39L with a 0.39Ω resistance.

Best replacement path

Use Yageo RL1206FR-070R39L, which is from the same product family and shares the AEC-Q200 qualification, after verifying the 2.5% resistance difference is acceptable.

Main risk

The primary risk is the deviation from the target's 0.4Ω resistance. For alternatives from other manufacturers, the lack of AEC-Q200 qualification is a critical risk for automotive designs.

Recommended alternatives

Strongest alternative from the same Yageo RL series, also AEC-Q200 qualified, with a slightly lower resistance of 0.39Ω.

View details

Alternative comparison matrix

Feature / factor	RL1206FR-070R4L	RL1206FR-070R39L	FRL1206FR390TS	FRL1206FR430TS	Compatibility / risk
Resistance	0.4Ω	0.39Ω	0.39Ω	0.43Ω	0.39Ω / 0.43Ω — 2.5% lower than target. From same manufacturer series.; FRL1206FR390TS: 2.5% lower than target.; FRL1206FR430TS: 7.5% higher than target.
Application	AEC-Q200	AEC-Q200	Not Specified	Not Specified	AEC-Q200 / Not Specified — Both parts are AEC-Q200 qualified.; FRL1206FR390TS: Target is AEC-Q200 qualified.; FRL1206FR430TS: Target is AEC-Q200 qualified.
Tolerance	±1%	±1%	±1%	±1%	±1% — matched; FRL1206FR390TS: matched; FRL1206FR430TS: matched
Power	0.25W	0.25W	0.25W	-	0.25W — matched; FRL1206FR390TS: matched
Package	1206	1206	1206	1206	1206 — matched; FRL1206FR390TS: matched; FRL1206FR430TS: matched

Application & sourcing insights

Questions & answers

The strongest alternative is Yageo's RL1206FR-070R39L, from the same AEC-Q200 qualified series, with a slightly lower resistance of 0.39Ω. This requires circuit validation but is the closest functional match.