This part is a kind of semiconductor called 2SC5090.

Function of this product has Silicon NPN Epitaxial Planar Type Transistor.

Manufacturers : Toshiba Semiconductor

Image and pinout :

Some of the text within the PDF file :

TOSHIBA Transistor Silicon NPN Epitaxial Planar Type 2SC5090 2SC5090 VHF~UHF Band Low Noise Amplifier Applications Unit: mm · Low noise figure, high gain. · NF = 1.1dB, |S21e|2 = 13dB (f = 1 GHz) Maximum Ratings (Ta = 25°C) Characteristics Collector-base voltage Collector-emitter voltage Emitter-base voltage Base current Collector current Collector power dissipation Junction temperature Storage temperature range Symbol VCBO VCEO VEBO IB IC PC Tj Tstg Rating 20 10 1.5 20 40 100 125 -55~125 Unit V V V mA mA mW °C °C Microwave Characteristics (Ta = 25°C) JEDEC ― JEITA SC-70 TOSHIBA 2-2E1A Weight: 0.006 g (typ.) Characteristics Transition frequency Insertion gain Noise figure Symbol Test Condition fT ïS21eï2 (1) ïS21eï2 (2) NF (1) NF (2) VCE = 8 V, IC = 20 mA [ ... ]

2SC5090 PDF Datasheet Download