BAV99LT1G
onsemi
Needs validationmedium risk
A common pin-compatible alternative with higher voltage/current, but verify higher leakage is acceptable.
Best Alternatives to BAV199,215
Finding a replacement for the BAV199,215 low-leakage diode involves a critical trade-off. While many pin-compatible parts like the BAV99LT1G exist with better voltage and current ratings, they have significantly higher leakage current, requiring careful engineering review.
AI replacement insight
Electrical riskhigh
Leakage current is several orders of magnitude higher in most alternatives. This can cause errors in high-impedance or precision analog circuits.
Package risklow
The SOT-23 package and standard series pinout are widely available and consistent across manufacturers.
Sourcing risklow
Alternatives like BAV99 and MMBD4148 families are widely sourced from multiple vendors.
Can it be replaced directly?
Direct replacement for BAV199,215 should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for BAV199,215, then review parametric alternatives for package and electrical fit.
Main risk
The primary risk is the substantial difference in leakage current. The BAV199 is a low-leakage part (picoamps), while common alternatives are general-purpose diodes with leakage in the nanoamp to microamp range. This can impact performance in sensitive analog circuits.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | BAV199,215 | BAV99LT1G | MMBD4148SE | MMBD7000LT1G | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT23 | SOT-23 | - | - | SOT-23 (TO-236) — Package is form-factor compatible. |
| Polarity Or Type | 1 Pair Series | 1 Pair Series Connection | - | - | Dual Series — Diode configuration matches. |
| Voltage | 75V | 100V | - | - | 100V — Higher voltage rating provides more margin. |
| Current | 160mA | 215mA | - | - | 200mA — Higher current rating. |
| Leakage Current | ~3pA | ~2.5uA | - | - | ~2.5uA — Significantly higher leakage current, review application. |
Application & sourcing insights
Questions & answers
Verified drop-in options for BAV199,215 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.