Taiwan Semiconductor BC847CW RF NPN Transistor, 100 mA, 45 V, 3-Pin SOT-323. Package Type: SOT-323 (SC-70). Mounting Type: Surface Mount. Maximum Power Dissipation: 200 mW. Minimum DC Current Gain: 420. Transistor Configuration: Single. Maximum Collector Base Voltage: 50 V. Maximum Emitter Base Voltage: 6 V. Width: 1.35mm. Dimensions: 2.1 x 1.35 x 1mm. Length: 2.1mm.