Is there a pin-compatible replacement for DSK115?

While parts like U1M exist in the same SOD-123FL package, they are not functionally pin-compatible. They are a different diode type (Fast Recovery vs. Schottky), which critically impacts performance like power loss and efficiency.

What risks should I check before replacing DSK115?

The main risk is substituting a different diode type. Replacing the DSK115 Schottky with a Fast Recovery or General Purpose diode will increase forward voltage drop, leading to higher power loss, more heat, and lower system efficiency. Always verify the diode type and its forward voltage.

DSK115 Alternatives, Datasheet & Cross Reference | MDD(Microdiode Semiconductor)

DSK115 is a 1A, 150V Schottky rectifier in a SOD-123FL package, valued for its low forward voltage and fast switching. Finding a direct replacement requires matching these key electrical characteristics, not just the package and basic ratings.

AI replacement insight

Electrical riskhigh

Substituting a non-Schottky diode will drastically change circuit performance, especially power dissipation and switching speed.

Package risklow

Several candidates are available in the same SOD-123FL package, ensuring mechanical compatibility.

Can it be replaced directly?

No direct, verified drop-in replacement for the DSK115 Schottky diode has been identified. All current candidates are different diode types and require significant engineering review.

Best replacement path

Search for other Schottky diodes in a SOD-123FL package with Vr ≥ 150V and If ≥ 1A, prioritizing a low forward voltage (Vf) close to 0.85V.

Main risk

Functional mismatch. Most alternatives are not Schottky diodes, leading to significantly higher forward voltage and power loss, which can cause overheating and reduce efficiency.

Recommended alternatives

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Alternative comparison matrix

Feature / factor	DSK115	SS5150B	SS5200B	Compatibility / risk
Package	SOD-123FL	DO-214AA (SMB)	DO-214AA, SMB	DO-214AA (SMB) / DO-214AA, SMB — Not a drop-in replacement; requires PCB redesign.; SS5200B: Not a drop-in replacement; requires PCB redesign.
Polarity Or Type	Schottky	Schottky	Schottky	Schottky — Functionally similar diode type.; SS5200B: Functionally similar diode type.
Voltage	150V	150V	200V	150V / 200V — Voltage rating matches target.; SS5200B: Higher voltage rating provides more design margin.
Current	1.0A	5.0A	5.0A	5.0A — Significantly higher current handling capability.; SS5200B: Significantly higher current handling capability.

Application & sourcing insights

Questions & answers

Currently, no direct Schottky alternatives have been verified. Several Fast Recovery diodes like US1ML and U1M share the same package and basic ratings but have significantly higher forward voltage, requiring careful design review.