mSMD050-33V
TECHFUSE
Needs validationlow risk
A PTC fuse from TECHFUSE in the same 1812 package with identical hold/trip currents and a higher voltage rating.
Best Alternatives to FSMD050-30-R
FSMD050-30-R is a 0.5A, 30V PTC resettable fuse in an 1812 package. We've identified potential alternatives, including a strong match from TECHFUSE, for your review.
AI replacement insight
Electrical risklow
Low for mSMD050-33V, which matches key specs. High for others due to current mismatch.
Package risklow
All candidates share the same 1812 package, ensuring physical compatibility.
Can it be replaced directly?
Direct replacement for FSMD050-30-R should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
The most promising path is mSMD050-33V, which matches key parameters. Other options have higher hold currents and pose a risk to the protected circuit.
Main risk
The main risk is selecting a part with a higher hold current, which would compromise the intended overcurrent protection of the circuit.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | FSMD050-30-R | mSMD050-33V | SMD1812-075C-33V | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 1812 | 1812 | 1812 | 1812 — Same package ensures form and fit.; SMD1812-075C-33V: Same package ensures form and fit. | |
| Current | 1.0A | 1.0A | 1.5A | 1.0A / 1.5A — Trip current matches target.; SMD1812-075C-33V: Higher trip current alters protection profile. | |
| Voltage | 30.0V | 33.0V | 33.0V | 33.0V — Higher voltage rating provides more safety margin.; SMD1812-075C-33V: Higher voltage rating provides more safety margin. |
Application & sourcing insights
Questions & answers
Verified drop-in options for FSMD050-30-R 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.