Is there a pin-compatible replacement for LBAS70-04LT1G?

While parts like BAV99LT3G share the same SOT-23 package and series connection pinout, they are not direct drop-in replacements due to being a different diode technology (switching vs. Schottky). This difference can affect circuit performance.

What risks should I check before replacing LBAS70-04LT1G?

The main risks are electrical. Verify if your application can tolerate the different forward voltage (Vf), reverse recovery time (trr), and leakage current (Ir) of a standard switching diode compared to the original Schottky diode.

LBAS70-04LT1G Alternatives, Datasheet & Cross Reference | LRC

Finding a substitute for the LBAS70-04LT1G, a 70V Schottky diode array, requires careful review of diode technology. While several parts match the package and series configuration, they are often standard switching diodes, not Schottky.

AI replacement insight

Electrical riskmedium

Difference in diode technology (Schottky vs. standard) impacts key parameters.

Package risklow

SOT-23 package is common and candidates match the form factor.

Can it be replaced directly?

No direct drop-in Schottky replacement with the same series configuration has been identified. All strong candidates are standard switching diodes.

Best replacement path

Evaluate functional alternates like BAV99LT3G, which offer superior ratings in the same package, but require engineering review for the technology difference (switching vs. Schottky).

Main risk

The primary risk is the technology mismatch between the target Schottky diode and standard switching diode candidates, affecting forward voltage, leakage, and recovery time.

Recommended alternatives

Functional alternate in SOT-23 package with higher voltage and current ratings, but different diode technology.

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Alternative comparison matrix

Feature / factor	LBAS70-04LT1G	BAV99LT3G	BAV23S	MMBD4148SE	Compatibility / risk
Package	SOT-23	SOT-23	SOT-23	SOT-23	SOT-23 — Package matches.; BAV23S: Package matches.; MMBD4148SE: Package matches.
Configuration	1 Pair Series Connection	1 Pair Series Connection	1 Pair Series Connection	1 Pair Series	1 Pair Series Connection — Internal configuration matches.; BAV23S: Configuration confirmed from ES data.; MMBD4148SE: Internal configuration matches.
Technology	Schottky	Switching Diode	Switching Diode	Switching Diode	Switching Diode — Candidate is a standard switching diode, not a Schottky.; BAV23S: Candidate is a standard switching diode, not a Schottky.; MMBD4148SE: Candidate is a standard switching diode, not a Schottky.
Voltage	70V	100V	250V	100V	100V / 250V — Higher voltage rating provides more margin.; BAV23S: Significantly higher voltage rating.; MMBD4148SE: Higher voltage rating.
Current	70mA	215mA	225mA	200mA	215mA / 225mA / 200mA — Higher current rating.; BAV23S: Significantly higher current rating.; MMBD4148SE: Higher current rating.

Application & sourcing insights

Questions & answers

BAV99LT3G is a strong functional alternative. It has a higher voltage (100V) and current (215mA) rating in the same SOT-23 package and series configuration, but it is a standard switching diode, not a Schottky, which requires engineering review.