SS2200B
MDD
Needs validationhigh risk
A Schottky diode with a similar forward voltage, but in a different package and with no voltage safety margin.
Best Alternatives to PNE20020ERX
PNE20020ERX is a 200V, 2A hyperfast recovery rectifier in a compact SOD123W package. Finding a direct replacement requires matching its fast 25ns recovery time and specific package footprint.
AI replacement insight
Package riskhigh
All candidates are in different, larger packages (SMC, SMB, SMAF) requiring PCB redesign.
Electrical riskmedium
Most candidates have slower recovery time (trr) and higher forward voltage (Vf), impacting performance. Some lack voltage margin.
Can it be replaced directly?
No direct, drop-in replacement for PNE20020ERX was found. All candidates have different packages and performance trade-offs.
Best replacement path
Review functional alternatives with higher voltage/current, but verify impact of different package and slower switching speed.
Main risk
The primary risks are the package mismatch, which prevents a drop-in replacement, and slower reverse recovery time in all candidates.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | PNE20020ERX | SS2200B | SS220F | STTH212U | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD123W | DO-214AA (SMB) | SMAF | SMB | DO-214AA (SMB) / SMAF / SMC — Not a drop-in replacement, requires PCB redesign.; SS220F: Not a drop-in replacement, requires PCB redesign.; STTH212U: Not a drop-in replacement, requires PCB redesign.; US5MC: Not a drop-in replacement, requires PCB redesign. |
| Voltage | 200 V | 200 V | 200 V | 1200 V | 200 V / 1200 V / 1000 V — No voltage margin, violates engineering rules for safety factor.; SS220F: No voltage margin, violates engineering rules for safety factor.; STTH212U: Higher voltage rating provides significant design margin.; US5MC: Higher voltage rating provides significant design margin. |
| Current | 2 A | 2 A | 2 A | 2 A | 2 A / 5 A — Current rating matches target.; SS220F: Current rating matches target.; STTH212U: Current rating matches target.; US5MC: Higher current rating provides significant design margin. |
| Vf | 0.98 V | 0.95 V | - | 1.5 V | 0.95 V / 1.5 V / 1.65 V — Forward voltage is a very close match.; STTH212U: Higher forward voltage will increase power dissipation.; US5MC: Higher forward voltage will increase power dissipation. |
| Technology | Hyperfast | Schottky | Schottky | - | Schottky — Different diode technology (Schottky vs Hyperfast) may affect reverse leakage.; SS220F: Different diode technology (Schottky vs Hyperfast) may affect reverse leakage. |
| Trr | 25 ns | - | - | 75 ns | 75 ns — Significantly slower recovery time; unsuitable for high-frequency applications.; US5MC: Significantly slower recovery time; unsuitable for high-frequency applications. |
Application & sourcing insights
Questions & answers
While no direct drop-in replacements were found, functional alternatives like STTH212U or US5MC offer higher voltage ratings but have different packages and slower recovery times, requiring board and performance validation.