MMBD7000LT1G
onsemi
Needs validationlow risk
A strong functional alternate in the same SOT-23 package with a higher voltage rating and matching current.
Best Alternatives to BAS40-04
BAS40-04 is a 40V, 200mA dual Schottky diode array in a SOT-23 package. Finding alternatives involves matching the series-pair configuration, package, and key electrical ratings for high-speed switching applications.
AI replacement insight
Electrical riskmedium
Dynamic characteristics (trr, Vf, capacitance) must be verified for the specific application.
Package risklow
SOT-23 is a standard package, but pinout configuration must be confirmed as 'series pair'.
Can it be replaced directly?
No officially confirmed direct replacement exists, but several functional alternates like MMBD7000LT1G offer a similar form, fit, and function with improved voltage ratings.
Best replacement path
Upgrade to a higher voltage part like MMBD7000LT1G or BAV99, which are common functional alternates.
Main risk
Electrical parameter differences, especially reverse recovery time (trr) and forward voltage (Vf), which can impact circuit timing and efficiency.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | BAS40-04 | MMBD7000LT1G | MMBD4148SE | BAV99 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOT-23 | SOT-23 | - | - | SOT-23 — Package matches. |
| Diode Configuration | Series Pair | Dual Series | - | - | Dual Series — Configuration matches target's series pair. |
| Voltage | 40V | 75V - 100V | - | - | 70V — Higher voltage rating provides more margin. |
| Current | 0.2A | 0.2A | - | - | 0.2A — Forward current matches. |
| Trr | 5ns | 4ns | - | - | 4ns — Slightly faster reverse recovery time. |
Application & sourcing insights
Questions & answers
The best alternatives for BAS40-04 are parts like MMBD7000LT1G or BAV99. They offer the same SOT-23 package, series-pair configuration, and current rating, with a higher voltage rating for increased design margin.