2SA1187-Y Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -150 V
• Collector-Base Voltage, max: -150 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -12 A
• Collector Dissipation: 120 W
• DC Current Gain (h_fe): 90 to 180
• Transition Frequency, min: 60 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: MT-200

Here is an image showing the pin diagram of this transistor.The 2SA1187-Y transistor can have a current gain of 90 to 180. The gain of the 2SA1187 will be in the range from 50 to 180, for the 2SA1187-O it will be in the range from 50 to 100, for the 2SA1187-P it will be in the range from 70 to 140.Sometimes the "2S" prefix is not marked on the package - the 2SA1187-Y might only be marked "A1187-Y".The complementary NPN transistor to the 2SA1187-Y is the 2SC2838-Y.You can replace the 2SA1187-Y with the 2SA1076, 2SA1095, 2SA1169, 2SA1169-Y, 2SA1215, 2SA1215-Y, 2SA1216, 2SA1216-G, 2SA1493, 2SA1493-Y, 2SA1494 or 2SA1494-Y.