
TECH PUBLIC
A potential pin-to-pin replacement with a higher voltage rating and matching key parameters.
Find and compare alternatives for the LRC LBAT54BST5G, a 30V, 200mA Schottky diode in a SOD882 package. Review pin-compatible and functional replacements from various manufacturers.
Multiple candidates share the same SOD882 package.
Forward voltage and capacitance can vary between parts, requiring datasheet review.
Direct replacement for LBAT54BST5G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The most promising path is TPB5546N-2, a cross-vendor part with closely matched key parameters. For an upgrade from the same manufacturer, consider LMBR4010BST5G.
The primary risk is a mismatch in forward voltage (Vf) or dynamic characteristics (capacitance, trr), which can affect circuit efficiency and high-frequency performance.

TECH PUBLIC
A potential pin-to-pin replacement with a higher voltage rating and matching key parameters.
| Feature / factor | LBAT54BST5G | TPB5546N-2 | LRB521BS-30T5G | LMBR4010BST5G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD882 | SOD882 | SOD882 | SOD882 | SOD882 — Package matches.; LRB521BS-30T5G: Package matches.; LMBR4010BST5G: Package matches.; PMEG4002EL,315: Package matches. |
| Voltage | 30V | 40V | 30V | 40V | 40V / 30V — Higher voltage rating provides more margin.; LRB521BS-30T5G: Voltage rating matches, no extra margin.; LMBR4010BST5G: Higher voltage rating.; PMEG4002EL,315: Higher voltage rating. |
| Current | 200mA | 200mA | 200mA | 1A | 200mA / 1A — Forward current rating matches.; LRB521BS-30T5G: Current rating matches.; LMBR4010BST5G: Significantly higher current rating.; PMEG4002EL,315: Current rating matches. |
| Forward Voltage | 0.35V @ 10mA | 0.35V @ 10mA | 0.5V @ 200mA | 0.6V @ 1A | 0.35V @ 10mA / 0.5V @ 200mA / 0.6V @ 1A / 0.6V @ 200mA — Forward voltage at test condition matches.; LRB521BS-30T5G: Vf characteristics differ, likely higher than target.; LMBR4010BST5G: Vf is specified at a much higher current.; PMEG4002EL,315: Significantly higher Vf increases power loss. |
| Manufacturer | LRC | TECH PUBLIC | - | - | TECH PUBLIC — Cross-vendor alternative. |
Verified drop-in options for LBAT54BST5G 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.