View 2sa1815 datasheet:

SMD Type TransistorsPNP Transistors2SA1815SOT-23Unit: mm2.9+0.1-0.1+0.10.4 -0.1 Features 3 High power gain : PG=25dB (f=100MHz). High cutoff frequency ; fT=750MHz typ. Low collector-to-emitter saturation voltage. 1 2+0.1+0.050.95 -0.1 0.1 -0.01 Complementary pair with the 2SC4432.1.9+0.1-0.11.Base2.Emitter3.collector Absolute Maximum Ratings Ta = 25Parameter Symbol Rating Unit Collector - Base Voltage VCBO -15 Collector - Emitter Voltage VCEO -12 V Emitter - Base Voltage VEBO -3 Collector Current - Continuous IC -50 mA Collector Power Dissipation PC 250 mW Junction Temperature TJ 150 Storage Temperature range Tstg -55 to 150 Electrical Characteristics Ta = 25Parameter Symbol Test Conditions Min Typ Max Unit Collector- base breakdown voltage VCBO Ic= -100 A IE=0 -15 Collector- e

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