| 2SD1638 Datasheet |
| Type | Transistor Silicon NPN | |
| Case | SOT32 | |
| Manufacturer | Rohm Semiconductor | |
| Vbr CEO | 100 | |
| Max. PD (W) | 10 | |
| Max. hFE | 10k | |
| Min hFE | 1.0k | |
| Ic Max. (A) | 2.0 | |
| @Ic (test) (A) | 1.0 | |
| Polarity | NPN | |
| @VCE (V) | 2.0 | |
| Pinout Equivalence Number | 3-10 | |
| Surface Mounted Yes/No | NO | |
| Maximum Collector Power Dissipation (Pc) | 10 W | |
| Maximum Collector-Base Voltage |Vcb| | 100 V | |
| Maximum Collector Current |Ic max| | 1.6 A | |
| Max. Operating Junction Temperature (Tj) | 150 °C | |
| Forward Current Transfer Ratio (hFE), MIN | 10000 | |
| SKU | 345568 | |