BC461-5 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -75 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -1 A
• Collector Dissipation: 10 W
• DC Current Gain (h_fe): 60 to 130
• Transition Frequency, min: 50 MHz
• Operating and Storage Junction Temperature Range: -55 to +200 °C
• Package: TO-39

Here is an image showing the pin diagram of this transistor.The BC461-5 transistor can have a current gain of 60 to 130. The gain of the BC461 will be in the range from 40 to 250, for the BC461-4 it will be in the range from 40 to 70, for the BC461-6 it will be in the range from 115 to 250.The complementary NPN transistor to the BC461-5 is the BC441-5.The FMMT551 (SOT-23), KTA1668 (SOT-89) and KTA1668O (SOT-89) is the SMD version of the BC461-5 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BC461-5 with the 2N2102, 2N2102A, 2N4036, 2N4235, 2N4236, 2N5322, 2N5323, 2N5679, 2N5680, 2N6191, 2N6193, 2SA510, 2SA510-O, 2SA512, 2SA512-O or BC161.