| Electronic component: | Description: | Manuf. | Package | Pins | T°min | T°max | Datasheet |
|---|
| A2540SLB | Quad darlington power driver | Allegro-MicroSystems-Inc- | SOIC | 20 | -20°C | 85°C | 143 K |
| UDK2547B | Protected quad power drivers | Allegro-MicroSystems-Inc- | DIP | 16 | -40°C | 125°C | 76 K |
| UDK2547EB | Protected quad power drivers | Allegro-MicroSystems-Inc- | PLCC | 28 | -40°C | 125°C | 76 K |
| UDN2543B | Protected quad power driver | Allegro-MicroSystems-Inc- | DIP | 16 | -20°C | 85°C | 135 K |
| UDN2543EB | Protected quad power driver | Allegro-MicroSystems-Inc- | PLCC | 28 | -20°C | 85°C | 135 K |
| UDN2544B | Quad darlington power driver | Allegro-MicroSystems-Inc- | DIP | 16 | -20°C | 85°C | 114 K |
| UDN2547B | Protected quad power drivers | Allegro-MicroSystems-Inc- | DIP | 16 | -20°C | 85°C | 76 K |
| UDQ2543B | Protected quad power driver | Allegro-MicroSystems-Inc- | DIP | 16 | -40°C | 85°C | 135 K |
| UDQ2543EB | Protected quad power driver | Allegro-MicroSystems-Inc- | PLCC | 28 | -40°C | 85°C | 135 K |
| UDQ2547B | Protected quad power drivers | Allegro-MicroSystems-Inc- | DIP | 16 | -40°C | 85°C | 76 K |
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