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| Part Number | 74139 |
| Description | T1/CEPT/ISDN-PRI Dual Transformer |
| Info | oH V SC AV ER OM AI SIO PL LA N IA BL S NT E Feat. |
| Manufacture | Bourns Electronic Solutions |
| for PC | Download 74139 Datasheet |
| Part Number | 74139 |
| Description | Dual 2 to 4 Demultiplexers |
| Info | www.DataSheet4U.com . |
| Manufacture | ETC |
| for PC | Download 74139 Datasheet |
| Part Number | 74139 |
| Description | Dual Line 2-4 decoder |
| Info | 54139/74139 双 2 线－4 线译码器 简要说�. |
| Manufacture | San Mao electronic |
| for PC | Download 74139 Datasheet |