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Marking of electronic components, SMD Codes HB139, HB139**. SN74AHCT139DBR, SN74AHCT139DGVR, SN74AHCT139PW, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| SN74AHCT139DBR | HB139 | SSOP-16 | |
| SN74AHCT139DGVR | HB139 | TVSOP-16 | |
| SN74AHCT139PW | HB139 | TSSOP-16 |