
MDD(Microdiode Semiconductor)
A pin-to-pin compatible alternative from a different manufacturer with identical key specifications.
The MB110S is a 1A, 100V Schottky bridge rectifier in a compact MBS surface-mount package, common in power supply and rectification circuits. When seeking alternatives, focus on matching the MBS package for a direct fit and ensuring voltage and current ratings are equal or greater.
Many parts meet or exceed the 1A/100V spec. Watch for higher forward voltage.
Several similar but non-compatible SMT packages exist. Verify footprint.
This is a common component type with many manufacturers.
Direct replacement for MB110S should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most direct path is finding a part in the same MBS package with >=1A current and >=100V voltage, like the MB310S. Alternatives in different packages (e.g., ABS, MBF) are functional but require a board redesign.
The main risk is package incompatibility. Many bridge rectifiers have similar electrical specs but come in different surface-mount packages (MBS, MBF, ABS) that are not interchangeable.

MDD(Microdiode Semiconductor)
A pin-to-pin compatible alternative from a different manufacturer with identical key specifications.
| Feature / factor | MB110S | MB110S | MB310S | MB310S | Compatibility / risk |
|---|---|---|---|---|---|
| Manufacturer | MDD | Various | - | - | Various — Same part number from multiple sources. |
| Current | 1.0A | 1.0A | 3.0A | 3.0A | 1.0A / 3.0A — matched; MB310S: Higher current rating provides more margin.; MB10S-10: Current rating is identical. |
| Voltage | 100V | 100V | 100V | 100V | 100V / 1000V — matched; MB310S: Voltage rating is identical.; MB10S-10: Much higher voltage rating. |
| Package | MBS | MBS | MBS | MBS | MBS — matched; MB310S: Same package family.; MB10S-10: Same package family. |
| Technology | - | - | - | - | — |
| Peak Surge Current | 30A | - | 70A | 70A | 70A — Higher surge current capability.; MB310S: Higher surge current capability. |
| Forward Voltage | 0.85V | - | 0.85V | 0.85V | 0.85V / 1.1V — Forward voltage matches, no efficiency change.; MB310S: Forward voltage matches, no efficiency change.; MB10S-10: Higher Vf may increase power loss. |
Verified drop-in options for MB110S 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.