Marking of electronic components, SMD Codes A4A, A4A**. AD8541ART, P4SSMJ9.1A, AD8541ARTZ, 25AA040AX-I/ST, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| AD8541ART | A4A | RJ-5 | |
| P4SSMJ9.1A | A4A | Chm | DO-214AC/SMA |
| AD8541ARTZ | A4A | RJ-5 | |
| 25AA040AX-I/ST | A4AX | TSSOP-8 |