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Marking of electronic components, SMD Codes B1, B1**. AP432YL-13, AAT1274IWO-T1, KSC2715, KSC2715-Y, MP1556DJ, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| AP432YL-13 | B1xxx | SOT89-3L | |
| AAT1274IWO-T1 | B1xxx | TDFN33-14 | |
| KSC2715 | B1Y | SOT-23 | |
| KSC2715-Y | B1Y | Sam | SOT-23 |
| MP1556DJ | B1YW | SOT23-5 |