The CE3514M4 from California Eastern Laboratories is a RF Transistor with Frequency 12 GHz, Power Gain (Gp) 12.2 dB, Noise Figure 0.42 to 0.62 dB, Supply Voltage 1 to 3 V, Voltage - Gate-Source (Vgs) -1.1 to -0.39 Vdc. Tags: Surface Mount. More details for CE3514M4 can be seen below.