SMD0805-050
TECHFUSE
Needs validationlow risk
A pin-compatible alternative from TECHFUSE with matching 0.5A hold current and 6V rating in an 0805 package.
Best Alternatives to MF-PSMF050X-2
Reviewing replacements for the Bourns MF-PSMF050X-2, a 0.5A/6V PTC resettable fuse in an 0805 package. Key considerations for substitutes are matching the hold current, trip current, and package size to ensure proper circuit protection.
AI replacement insight
Electrical risklow
Low if hold/trip currents and voltage are matched.
Package risklow
0805 is a standard package with excellent cross-compatibility.
Sourcing risklow
Multiple vendors produce compatible parts, mitigating sourcing risk.
Can it be replaced directly?
Direct replacement for MF-PSMF050X-2 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use Yageo SMD0805B050TF or TECHFUSE SMD0805-050 for a direct, form-fit-function replacement.
Main risk
The primary risk is selecting a part with an incorrect hold current, which would compromise overcurrent protection.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | MF-PSMF050X-2 | SMD0805-050 | SMD0805B050TF | SMD0805-050-16V | Compatibility / risk |
|---|---|---|---|---|---|
| Current | 0.5A | 0.5A | - | - | 1.0A — Hold current is 2x higher; will not protect the circuit at the intended 0.5A level. |
| Voltage | 6.0V | 6.0V | - | - | 16.0V — Higher voltage rating provides increased design margin. |
| Package | 0805 (2012 metric) | 0805 | - | - | 0805 — Package size and pin count match. |
| Resistance | 0.900 Ohm | 0.850 Ohm | - | - | 0.850 Ohm — Max post-trip resistance (R1max) is slightly lower (better). |
Application & sourcing insights
Questions & answers
Verified drop-in options for MF-PSMF050X-2 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.