2SA1037-R Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -50 V
• Collector-Base Voltage, max: -60 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -0.15 A
• Collector Dissipation: 0.2 W
• DC Current Gain (h_fe): 180 to 390
• Transition Frequency, min: 140 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: SOT-23

Here is an image showing the pin diagram of this transistor.The 2SA1037-R transistor can have a current gain of 180 to 390. The gain of the 2SA1037 will be in the range from 120 to 560, for the 2SA1037-Q it will be in the range from 120 to 270, for the 2SA1037-S it will be in the range from 270 to 560.The 2SA1037-R transistor is marked as "HR".The complementary NPN transistor to the 2SA1037-R is the 2SC2412-R.You can replace the 2SA1037-R with the 2SA1162, 2SA1366, 2SA1518, 2SA1519, 2SA1520, 2SA1521, 2SA1832, 2STR2160, FMMTA55, FMMTA56, KST55, KST56, KTA1504, KTA1504S, MMBT4354, MMBT4355, MMBTA55, MMBTA56, PMBTA56, SMBTA55 or SMBTA56.