| 2SD1891 Datasheet |
| Type | Transistor Silicon NPN | |
| Case | TO220 | |
| Manufacturer | Matsushita Electronics | |
| Polarity | NPN | |
| Maximum Collector Power Dissipation (Pc) | 40 W | |
| Maximum Collector-Base Voltage |Vcb| | 110 V | |
| Maximum Collector Current |Ic max| | 4 A | |
| Max. Operating Junction Temperature (Tj) | 150 °C | |
| Forward Current Transfer Ratio (hFE), MIN | 15000 | |
| SKU | 345698 | |