TLP181GB-S
AOTE Semiconductor
Needs validationhigh risk
AOTE TLP181GB-S is a cross-vendor family candidate with lower isolation.
Best Alternatives to CYTLP181(GB-TP)
CYTLP181(GB-TP) is a 5000 Vrms SOP4 phototransistor optocoupler. Current candidates need pinout and isolation review before use.
AI replacement insight
Electrical riskhigh
3750 Vrms parts are below target isolation.
Package riskmedium
SOP4 text matches do not prove footprint.
Firmware risklow
No firmware interface.
Sourcing riskmedium
All kept parts are catalog indexed.
Can it be replaced directly?
No verified pin-compatible replacement is supported by the provided evidence.
Best replacement path
Review AOTE TLP181GB-S for family fit, or UMW TLP521GB-S if 5000 Vrms isolation is required.
Main risk
Pinout is unverified and several candidates have lower isolation.
Recommended alternatives
5Alternative comparison matrix
| Feature / factor | CYTLP181(GB-TP) | TLP181GB-S | AT354B-CuH-S | TLP521GB-S(UMW) | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOP4 | SOP4 | - | - | SOP-4 — notation differs |
| Pinout | 4-pin | 4-pin | - | - | 4-pin — pin functions not shown |
| Voltage | 5000 Vrms iso | VCEO 80 V | - | - | VCEO 80 V — output rating matches |
| Temperature | -55 to 110 C | -55 to 110 C | - | - | -55 to 110 C — range matches |
| Application | CTR 50-600% | - | - | - | — |
Application & sourcing insights
Questions & answers
No single best verified substitute is proven. AOTE TLP181GB-S is closest by family, while UMW TLP521GB-S keeps 5000 Vrms isolation.