This part is a kind of semiconductor called 1442.

Function of this product has Bulk Metal Foil Technology Dual-In-Line Hermetic Resistor Networks.

Manufacturers : Vishay Siliconix

Image and pinout :

Some of the text within the PDF file :

1442, 1445, 1446 Vishay Foil Resistors Bulk Metal® Foil Technology Dual-In-Line Hermetic Resistor Networks Vishay Model 1442, 1445 and 1446 networks incorporate all the performance features of Vishay Bulk Metal® Foil technology. The 8, 14 and 16 pin side brazed DIPs are a ceramic package. Ceramic has the advantage of electrical isolation on the underside, and, in DIP form, a favorable pin arrangement when two networks are to be placed side by side and connected together. Review data sheet “7 Technical Reasons to Specify Bulk Metal® Foil Resistor Networks.” Networks are built to your requirements. Send your schematic and electrical requirements to the Applications Engineering Department. (See data sheet “Network Worksheet.”) A unique part number will be assigned which defines al [ ... ]

1442 PDF Datasheet Download