Marking of electronic components, SMD Codes S4xx, S4xx**. R1121N341B, R1225N182D, R3130N30DA8, TC1270SERCTR, APX803-44SRG, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| R1121N341B | S4xx | SOT-23-5 | |
| R1225N182D | S4xx | SOT-23-6W | |
| R3130N30DA8 | S4xx | SOT-23-3 | |
| TC1270SERCTR | S4xx | SOT-143 | |
| APX803-44SRG | S4xxx | SOT23R |