The 2SC4135T-TL-E from onsemi is a Bipolar Junction Transistor with Emitter Base Voltage 6 V, Base Emitter Saturation Voltage 0.85 to 1.2 V, Emitter Cut off Current 100 nA, Collector Base Voltage 120 V, Collector Cut off Current 100 nA. Tags: Surface Mount, NPN Transistor. More details for 2SC4135T-TL-E can be seen below.