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| Part Number | TC642 |
| Description | PWM Fan Speed Controller |
| Info | M Features • Temperature Proportional Fan Speed . |
| Manufacture | Microchip |
| for PC | Download TC642 Datasheet |
| Part Number | TC642B |
| Description | PWM Fan Speed Controllers |
| Info | M TC642B/TC647B PWM Fan Speed Controllers With Min. |
| Manufacture | Microchip |
| for PC | Download TC642B Datasheet |