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Marking of electronic components, SMD Codes O4, O4**. BZD27C13P-M, 2SA1331, OPA4140AIDR, OPA4140AIPW, OPA4140AIPWR, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| BZD27C13P-M | O4 | DO219-AB | |
| 2SA1331 | O4 | CP | |
| OPA4140AIDR | O4140A | SO-14 | |
| OPA4140AIPW | O4140A | TSSOP-14 | |
| OPA4140AIPWR | O4140A | TSSOP-14 | |
| OPA4322AIPW | O4322A | TSSOP-14 | |
| OPA4322SAIPW | O4322SA | TSSOP-16 |