| BFP181 Datasheet |
| Type | Transistor Silicon NPN | |
| Case | SOT143 | |
| Manufacturer | Siemens Semiconductors | |
| Vbr CBO | 20 | |
| Mat. | Silicon Logic | |
| Noise Fig. | 1.2 | |
| f(osc) Max. (Hz) | 7.0G | |
| Polarity | NPN | |
| PD Max. (W) | 175m | |
| Coll. (or drain) Current Max. | 20m | |
| @Freq. (test) | 800M | |
| Oper. Temp (°C) Max. | 150 | |
| Pinout Equivalence Number | 4-32 | |
| Surface Mounted Yes/No | YES | |
| Maximum Collector Power Dissipation (Pc) | 0.175 W | |
| Maximum Collector-Base Voltage |Vcb| | 20 V | |
| Maximum Collector Current |Ic max| | 0.02 A | |
| Max. Operating Junction Temperature (Tj) | 150 °C | |
| Transition Frequency (ft): | 8000 MHz | |
| Forward Current Transfer Ratio (hFE), MIN | 40 | |
| SMD Transistor Code | RFs | |
| SKU | 407509 | |