| 2SD1851 Datasheet |
| Type | Transistor Silicon NPN Darlington | |
| Case | SOT23 | |
| Manufacturer | Sanyo Semiconductor | |
| Polarity | NPN | |
| Maximum Collector Power Dissipation (Pc) | 0.2 W | |
| Maximum Collector-Base Voltage |Vcb| | 80 V | |
| Maximum Collector-Emitter Voltage |Vce| | 50 V | |
| Maximum Emitter-Base Voltage |Veb| | 1 V | |
| Maximum Collector Current |Ic max| | 0.2 A | |
| Max. Operating Junction Temperature (Tj) | 150 °C | |
| Forward Current Transfer Ratio (hFE), MIN | 5 | |
| SMD Transistor Code | XY | |
| SKU | 345681 | |