... & Transistors :Microwave, High frequency, Attenuation, Demodulation, Schottky, Fast recovery, Zener, Variable etc. 1,SMD Diodes ... (Microwave, High frequency, Attenuation, Demodulation, Schottky, Fast recovery, Zener, Variable capacitance, Transient voltage suppressor, ... Frequency. S9012 MMBT3904 S9014 MMBT5551 S2301 TL431 SMD Transistor are designed for use in various fields including: ...