Is there a pin-compatible replacement for MF-MSMF260-2?

Yes, SMD1812-260C-24V is a strong candidate for pin-compatibility. It has the same 1812 package and 2-pin layout. For non-automotive applications, it is an excellent electrical and physical match.

What risks should I check before replacing MF-MSMF260-2?

The main risks are electrical and qualification-related. Ensure the replacement's hold current is not higher than 2.6A to maintain the same protection level. Most importantly, verify if your application requires AEC-Q200 automotive qualification, as most alternatives lack this.

MF-MSMF260-2 Alternatives, Datasheet & Cross Reference | BOURNS

Finding a substitute for the Bourns MF-MSMF260-2 involves matching its 2.6A hold current and 1812 package. The key challenge is finding an alternative that also meets the AEC-Q200 automotive standard.

AI replacement insight

Package risklow

All viable candidates share the same 1812 package.

Electrical riskhigh

Risk is high if using parts with a different hold current. For SMD1812-260C-24V, electrical risk is low.

Sourcing riskhigh

The target is from a major brand (Bourns). Alternatives are from less common vendors and may lack AEC-Q200 qualification.

Can it be replaced directly?

No direct, drop-in replacement with AEC-Q200 qualification was found. However, SMD1812-260C-24V from BNstar offers identical hold/trip currents and a higher voltage rating, making it a strong functional alternative for non-automotive designs.

Best replacement path

SMD1812-260C-24V is the closest electrical match, ideal for non-automotive applications or if AEC-Q200 can be waived.

Main risk

The primary risk is substituting a non-AEC-Q200 qualified part into an automotive application that requires it.

Recommended alternatives

Excellent electrical match with identical hold/trip currents and higher voltage, but lacks AEC-Q200 qualification.

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Alternative comparison matrix

Feature / factor	MF-MSMF260-2	SMD1812-260C-24V	TLC-MSMD300	Compatibility / risk
Package	1812 (4532 metric)	1812	1812	1812 — Same package size ensures form-fit compatibility.; TLC-MSMD300: Same package size.
Current	5.2 A	5.2 A	3.0 A	5.2 A / 3.0 A — Identical trip current (It) ensures same overcurrent response.; TLC-MSMD300: Higher hold current reduces protection, allowing 15% more current before tripping.
Voltage	6 V	24.0 V	6.0 V	24.0 V / 6.0 V — Higher max voltage provides increased design margin.; TLC-MSMD300: Voltage rating matches the target.
Application	AEC-Q200	None	None	None — Lacks AEC-Q200 qualification required for many automotive applications.; TLC-MSMD300: Lacks AEC-Q200 qualification.

Application & sourcing insights

Questions & answers

The best alternative is SMD1812-260C-24V. It matches the 2.6A hold current, 5.2A trip current, and 1812 package, with a higher 24V rating. However, it is not AEC-Q200 qualified, unlike the original Bourns part.