2SB552-BN Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -180 V
• Collector-Base Voltage, max: -220 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -15 A
• Collector Dissipation: 150 W
• DC Current Gain (h_fe): 25 to 50
• Transition Frequency, min: 4 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-3

Here is an image showing the pin diagram of this transistor.The 2SB552-BN transistor can have a current gain of 25 to 50. The gain of the 2SB552 will be in the range from 25 to 80, for the 2SB552-R it will be in the range from 40 to 80.Sometimes the "2S" prefix is not marked on the package - the 2SB552-BN might only be marked "B552-BN".The complementary NPN transistor to the 2SB552-BN is the 2SD552-DN.You can replace the 2SB552-BN with the MJ15023, MJ15023G, MJ15025, MJ15025G, MJ21193, MJ21193G, MJ21195 or MJ21195G.