1N5819W
Kexin
Needs validationlow risk
A classic, multi-source replacement with matching key specs and package. A reliable alternative for most applications.
Best Alternatives to B5819W-G
B5819W-G is a common 40V, 1A Schottky diode in a SOD-123 package. Several pin-compatible alternatives like the 1N5819W series exist, but engineers should verify secondary parameters for their specific application.
AI replacement insight
Electrical risklow
Key ratings match, but secondary parameters like Vf and Ir may vary slightly.
Package risklow
SOD-123 is standard, but confirm no 'FL' (flat lead) variants are accidentally sourced.
Sourcing risklow
Alternatives are widely available from multiple manufacturers, improving supply chain resilience.
Can it be replaced directly?
Direct replacement for B5819W-G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Use a standard 1N5819W from a reputable manufacturer, as it is a widely recognized and multi-sourced equivalent.
Main risk
Minor variations in forward voltage (Vf) and reverse leakage current (Ir) can exist between different manufacturers of 1N5819W.
Recommended alternatives
3Alternative comparison matrix
| Feature / factor | B5819W-G | 1N5819W | K1N5819HW-7-F | RB160M-60 | Compatibility / risk |
|---|---|---|---|---|---|
| Voltage | 40V | 40V | 40V | 60V | 40V / 60V — Voltage rating matches.; K1N5819HW-7-F: Voltage rating matches.; RB160M-60: Candidate has a higher voltage rating, offering more design margin. |
| Current | 1.0A | 1.0A | 1.0A | 1.0A | 1.0A — Current rating matches.; K1N5819HW-7-F: Current rating matches.; RB160M-60: Average rectified current matches. |
| Package | SOD-123 | SOD-123 | SOD-123 | SOD-123 / SOD-123FL | SOD-123 / SOD-123 / SOD-123FL — Package type matches.; K1N5819HW-7-F: Package type matches.; RB160M-60: Data sources conflict between SOD-123 and SOD-123FL. Footprint must be verified. |
| Application | Single source | Multiple | - | - | Multiple — This is a standard, multi-source industry part number. |
| Temperature | 125°C | - | 125°C | 150°C | 125°C / 150°C — Maximum operating temperature matches.; RB160M-60: Candidate has a higher maximum operating temperature. |
Application & sourcing insights
Questions & answers
Verified drop-in options for B5819W-G 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.