| 2SD1990 Datasheet |
| Type | Transistor Silicon NPN | |
| Case | SOT78 | |
| Manufacturer | Matsushita Electronics | |
| Polarity | NPN | |
| Maximum Collector Power Dissipation (Pc) | 35 W | |
| Maximum Collector-Base Voltage |Vcb| | 80 V | |
| Maximum Collector Current |Ic max| | 4 A | |
| Max. Operating Junction Temperature (Tj) | 150 °C | |
| Forward Current Transfer Ratio (hFE), MIN | 30 | |
| SKU | 345743 | |