The 2SA2188AE from Isahaya Electronics is a Bipolar Junction Transistor with Emitter Base Voltage -4 V, Emitter Cut off Current -1 µA, Collector Base Voltage -25 V, Collector Cut off Current -1 µA, Collector Emitter Breakdown Voltage -20 V. Tags: Surface Mount, PNP Transistor. More details for 2SA2188AE can be seen below.