This part is a kind of semiconductor called MQ7001.
Function of this product has DUAL AMPLIFIER TRANSISTOR.
Manufacturers : Motorola
Image and pinout :

Some of the text within the PDF file :
MAXIMUM RATINGS Rating Collector-Emitter Voltage Collector-Base Voltage Emitter-Base Voltage Collector Current Continuous @Total Device Dissipation Ta = 25°C MD7001 MD7001F MQ7001 Derate above 25°C MD7001 MD7001F MQ7001 @Total Device Dissipation Tc = 25°C MD7001 MD7001F MQ7001 Derate above 25°C MD7001 MD7001F MQ7001 Operating and Storage Junction Temperature Range Symbol Value VCEO VCBO VEBO ic 30 50 5.0 600 One Die All Die PD 600 650 350 400 400 600 3.42 2.0 2.28 3.7 2.28 3.42 Pd 2.1 1.25 1.0 3.8 2.5 4.0 TJ' Tstg 12 7.15 5.71 17.2 14.3 22.8 -65 tc) +200 Unit Vdc Vdc Vdc mAdc mW mW/°C Watts mW/°C °c MD7001,F MQ7001 MD7001 CASE 654-07, STYLE 1 MD7001F CASE 610A-04, STYLE 1 MQ7001 CASE 607-04, STYLE 1 DUAL AMPLIFIER TRANSISTOR PNP SILICON THERMAL CHARACTERISTICS Cha [ ... ]
MQ7001 PDF Datasheet Download
