This part is a kind of semiconductor called 102.

Function of this product has 0.1/2.5 GHz Si MMIC BUFFER AMPLIFIERS.

Manufacturers : STMicroelectronics

Image and pinout :

Some of the text within the PDF file :

STB7102 0.5/2.5 GHz UHF LO BUFFER AMPLIFIER • OPERATING FREQUENCY 500-2500MHz • LOW CURRENT CONSUMPTION • EXCELLENT ISOLATION • ULTRA MINIATURE SOT323-6L PACKAGE SOT323-6L (SC70) APPLICATIONS • BUFFER AMPLIFIER FOR 0.5/2.5 GHz APPLICATIONS • CDMA/PCS LO BUFFER AMPLIFIER ORDER CODE STB7102TR BRANDING 102 (Top View) 3 4 (Bottom View) 4 5 6 3 2 1 102 DESCRIPTION The STB7102, designed for RF Mobile Phone applications (0.5/2.5GHz), is an high isolation Local Oscillator Buffer Amplifier. Manufactured in the third generation of ST proprietary bipolar process, it offers an excellent isolation and a good linearity using only 4mA current consumption. The STB7102 is housed in an ultra miniature package SOT323-6L surface mount package. 2 1 5 6 PIN CONNECTION Pin No. 1 2 3 4 5 6 [ ... ]

102 PDF Datasheet Download