Is there a pin-compatible replacement for MF-SM050-2?

Yes, parts in a 2920 package like SMD2920-050C-60V and SMD050L are pin-compatible, as they are 2-terminal SMD devices with a standard footprint.

What risks should I check before replacing MF-SM050-2?

The main risk is application compliance. The MF-SM050-2 is AEC-Q200 qualified for automotive use; most alternatives are not. Also check max fault current (Imax) and time-to-trip to ensure protection levels are maintained.

MF-SM050-2 Alternatives, Datasheet & Cross Reference | BOURNS

Finding a replacement for the Bourns MF-SM050-2 involves matching its 2920 package, 60V rating, and 0.5A hold current. Key alternatives exist, but require checking AEC-Q200 compliance for your application.

AI replacement insight

Application riskhigh

Substituting a non-AEC-Q200 part into an automotive design is a high risk.

Electrical risklow

Several candidates match key electricals (Ih, It, Vmax, Imax).

Package risklow

2920 is a standard package with a common land pattern.

Can it be replaced directly?

No direct drop-in replacement is confirmed if AEC-Q200 is a strict requirement. For general use, several form-fit-function alternatives with matching key parameters are available.

Best replacement path

For non-automotive use, SMD2920-050C-60V is a strong candidate. For automotive, sourcing another AEC-Q200 qualified part is critical.

Main risk

The primary risk is replacing an AEC-Q200 qualified component with a non-qualified one, which is unacceptable for most automotive designs.

Recommended alternatives

A 2920 PTC fuse with matching electrical ratings but is not AEC-Q200 qualified for automotive applications.

View details

Alternative comparison matrix

Feature / factor	MF-SM050-2	SMD2920-050C-60V	SMD050L	SMD2920P050TF	Compatibility / risk
Package	2920	2920	2920	2920	2920 — Matches target package.; SMD050L: Matches target package.; SMD2920P050TF: Matches target package.
Voltage	60V	60V	60V	60V	60V — Matches target max voltage.; SMD050L: Matches target max voltage.; SMD2920P050TF: Matches target max voltage.
Current	40A	40A	100A	10A	40A / 100A / 10A — Max fault current matches.; SMD050L: Max fault current is higher.; SMD2920P050TF: Max fault current is lower.
Application	Yes	No	No	No	No — Not AEC-Q200 qualified.; SMD050L: Not AEC-Q200 qualified.; SMD2920P050TF: Not AEC-Q200 qualified.

Application & sourcing insights

Questions & answers

For non-automotive applications, BNstar's SMD2920-050C-60V is a strong choice with matching electricals. If AEC-Q200 is required, you must source another qualified part.